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Here are the technical service bulletins we have for the 2020 CADILLAC CT4. If you have any questions, do not hesitate to Contact Us:
This 2020 CADILLAC CT4 Technical Service Bulletin affects the 060000 ENGINE AND ENGINE COOLING
20190813
060000 ENGINE AND ENGINE COOLING
This informational bulletin provides information on Internal Engine Noise or Damage After Oil Filter Replacement.
This 2020 CADILLAC CT4 Technical Service Bulletin affects the 060000 ENGINE AND ENGINE COOLING
20190821
060000 ENGINE AND ENGINE COOLING
This bulletin provides information on identifying Non-GM Engine Calibrations for Gasoline Engines using the Tech 2 or GDS 2.
This 2020 CADILLAC CT4 Technical Service Bulletin affects the 100000 POWER TRAIN
20190923
100000 POWER TRAIN
This Preliminary information communicates to the dealer technician that the 10L60, 10L80 and the 10L90 transmissions have been place on a part restriction. Dealers are to contact the Product Quality Center before replacing the transmission
This 2020 CADILLAC CT4 Technical Service Bulletin affects the 110000 ELECTRICAL SYSTEM
20190823
110000 ELECTRICAL SYSTEM
This preliminary information bulletin provides information om Service Programming System (SPS) Error Codes E4398, E4399, E4403, M4404, M4413, E4414, E4423, E4491 or E6961).
This 2020 CADILLAC CT4 Technical Service Bulletin affects the 010000 STEERING
20190805
010000 STEERING
This technical bulletin provides a procedure inspecting for excess grease or Sealant on the Exterior of the steering gear due to seeing grease or sealant on certain locations on the gear.
This 2020 CADILLAC CT4 Technical Service Bulletin affects the 060000 ENGINE AND ENGINE COOLING
20190815
060000 ENGINE AND ENGINE COOLING
This informational bulletin provides information on replacing the intake manifold when the engine is replaced after severe internal engine damage.
This 2020 CADILLAC CT4 Technical Service Bulletin affects the 356000 EQUIPMENT ADAPTIVE
20200228
356000 EQUIPMENT ADAPTIVE
This informational bulletin provides information for dealers/technicians and customers on steam/vapor coming from the front grille or radiator area.
This 2020 CADILLAC CT4 Technical Service Bulletin affects the 350000 EQUIPMENT
20200228
350000 EQUIPMENT
This informational bulletin provides information for dealers/technicians and customers on steam/vapor coming from the front grille or radiator area.
This 2020 CADILLAC CT4 Technical Service Bulletin affects the 162000 STRUCTURE:BODY
20200228
162000 STRUCTURE:BODY
This informational bulletin provides information for dealers/technicians and customers on steam/vapor coming from the front grille or radiator area.
This 2020 CADILLAC CT4 Technical Service Bulletin affects the 100000 POWER TRAIN
20191008
100000 POWER TRAIN
This informational bulletin explains possible normal condition of a flare from 1st to 2nd, even if the trans had been repaired for the flare and its still noticed.
This 2020 CADILLAC CT4 Technical Service Bulletin affects the 100000 POWER TRAIN
20190920
100000 POWER TRAIN
This engineering informational bulletin is requesting information from technicians to perform the check list provided and contact the engineer listed in regards to 8 speed transmission shift quality.
This 2020 CADILLAC CT4 Technical Service Bulletin affects the 350000 EQUIPMENT
20200121
350000 EQUIPMENT
This Warranty Administration bulletin provides information on customer vehicles concern results in a manufacturer repurchase from the customer, GM depends on the dealership to host and administer the repurchase closing and intake of the ret
This 2020 CADILLAC CT4 Technical Service Bulletin affects the 355200 EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL
20191002
355200 EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL
This informational bulletin provides information on comebacks prevention information and using customer concern verification sheets (CCVS).
This 2020 CADILLAC CT4 Technical Service Bulletin affects the 355200 EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL
20191009
355200 EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL
This informational bulletin provides information on key code security and information on GM key code look up applications.
This 2020 CADILLAC CT4 Technical Service Bulletin affects the 100000 POWER TRAIN
20200218
100000 POWER TRAIN
This Preliminary information communicates to the dealer technician that the 10L60, 10L80 and the 10L90 transmissions have been place on a part restriction. Dealers are to contact the Product Quality Center before replacing the transmission
This 2020 CADILLAC CT4 Technical Service Bulletin affects the 118000 ELECTRICAL SYSTEM: SOFTWARE
20200122
118000 ELECTRICAL SYSTEM: SOFTWARE
This informational bulletin provides information for dealers/technicians on MDI 2 Required When Programming Vehicles on Next Generation Digital Vehicle Platform.
This 2020 CADILLAC CT4 Technical Service Bulletin affects the 350000 EQUIPMENT
20200122
350000 EQUIPMENT
This informational bulletin provides information for dealers/technicians on MDI 2 Required When Programming Vehicles on Next Generation Digital Vehicle Platform.
This 2020 CADILLAC CT4 Technical Service Bulletin affects the 350000 EQUIPMENT
20200113
350000 EQUIPMENT
This bulletin provides information regarding Part Restriction and Ordering Process Information for OnStar® Vehicle Communication Interface Modules (VCIM) (GMNA Only).
This 2020 CADILLAC CT4 Technical Service Bulletin affects the 110000 ELECTRICAL SYSTEM
20200113
110000 ELECTRICAL SYSTEM
This bulletin provides information regarding Part Restriction and Ordering Process Information for OnStar® Vehicle Communication Interface Modules (VCIM) (GMNA Only).
This 2020 CADILLAC CT4 Technical Service Bulletin affects the 350000 EQUIPMENT
20200127
350000 EQUIPMENT
This informational bulletin provides retail, wholesale and fleet personnel with General Motors recommendations for customer concerns related to wheel alignment.
This 2020 CADILLAC CT4 Technical Service Bulletin affects the 200000 WHEELS
20200127
200000 WHEELS
This informational bulletin provides retail, wholesale and fleet personnel with General Motors recommendations for customer concerns related to wheel alignment.
This 2020 CADILLAC CT4 Technical Service Bulletin affects the 060000 ENGINE AND ENGINE COOLING
20191009
060000 ENGINE AND ENGINE COOLING
This informational bulletin provides guidelines and diagnostic/repair information to technicians regarding vehicle engine oil consumption.
This 2020 CADILLAC CT4 Technical Service Bulletin affects the 350000 EQUIPMENT
20190918
350000 EQUIPMENT
This warranty administration bulletin provides information regarding the field action courtesy transportation policy.
This 2020 CADILLAC CT4 Technical Service Bulletin affects the 100000 POWER TRAIN
20191029
100000 POWER TRAIN
This informational bulletin provides information on Driveline Clunk Noise and what is acceptable and what is considered normal operations.
This 2020 CADILLAC CT4 Technical Service Bulletin affects the 355200 EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL
20191016
355200 EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL
This informational bulletin provides information for dealers how to submit a product information report (PIR) (Canada Only).
This 2020 CADILLAC CT4 Technical Service Bulletin affects the 100000 POWER TRAIN
20191014
100000 POWER TRAIN
This Bulletin provides guidelines for Dealers Not Required and for Dealers Required to Contact the PQC for engine or transmission assembly replacement and explains the PQC process, GWM Transaction submission, vehicle service record retentio
This 2020 CADILLAC CT4 Technical Service Bulletin affects the 350000 EQUIPMENT
20200129
350000 EQUIPMENT
This informational bulletin provides information on GM Accessories ? Dealer-Installed, Repaired or Replaced During Warranty Coverage Period.
This 2020 CADILLAC CT4 Technical Service Bulletin affects the 350000 EQUIPMENT
20200204
350000 EQUIPMENT
This Preliminary information communicates to the dealer technician that the 10L60, 10L80 and the 10L90 transmissions have been place on a part restriction. Dealers are to contact the Product Quality Center before replacing the transmission
This 2020 CADILLAC CT4 Technical Service Bulletin affects the 100000 POWER TRAIN
20200204
100000 POWER TRAIN
This Preliminary information communicates to the dealer technician that the 10L60, 10L80 and the 10L90 transmissions have been place on a part restriction. Dealers are to contact the Product Quality Center before replacing the transmission
This 2020 CADILLAC CT4 Technical Service Bulletin affects the 353500 EQUIPMENT:ELECTRICAL:NAVIGATIONAL SYSTEM(GLOBAL POSITIONING SYSTEM)
20200204
353500 EQUIPMENT:ELECTRICAL:NAVIGATIONAL SYSTEM(GLOBAL POSITIONING SYSTEM)
This Preliminary Information communication advises the technician that the Radio or Tuner, radio controls, Integrated Center Stack, HUD's, IPC's, and radio displays are placed on restriction through the General Motors Technical Assistance C
This 2020 CADILLAC CT4 Technical Service Bulletin affects the 353400 EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.
20200204
353400 EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.
This Preliminary Information communication advises the technician that the Radio or Tuner, radio controls, Integrated Center Stack, HUD's, IPC's, and radio displays are placed on restriction through the General Motors Technical Assistance C
This 2020 CADILLAC CT4 Technical Service Bulletin affects the 353000 EQUIPMENT:ELECTRICAL
20200204
353000 EQUIPMENT:ELECTRICAL
This Preliminary Information communication advises the technician that the Radio or Tuner, radio controls, Integrated Center Stack, HUD's, IPC's, and radio displays are placed on restriction through the General Motors Technical Assistance C
This 2020 CADILLAC CT4 Technical Service Bulletin affects the 356000 EQUIPMENT ADAPTIVE
20200206
356000 EQUIPMENT ADAPTIVE
This Preliminary information communicates An issue may occur causing a Service Driver Assist, Steering Assist Reduced Messages, or MIL illuminated with P25A2, U0265, and U0566, replacing the Front View Camera for frequently occurring cases
This 2020 CADILLAC CT4 Technical Service Bulletin affects the 010000 STEERING
20200206
010000 STEERING
This Preliminary information communicates An issue may occur causing a Service Driver Assist, Steering Assist Reduced Messages, or MIL illuminated with P25A2, U0265, and U0566, replacing the Front View Camera for frequently occurring cases
This 2020 CADILLAC CT4 Technical Service Bulletin affects the 060000 ENGINE (PWS)
20200210
060000 ENGINE (PWS)
This Preliminary information communicates that the OAT sensor may not read correctly upon startup after the vehicle has been parked for two hours or more. Engineering is aware of the concern and is working on a resolution.
This 2020 CADILLAC CT4 Technical Service Bulletin affects the 118000 ELECTRICAL SYSTEM: SOFTWARE
20200210
118000 ELECTRICAL SYSTEM: SOFTWARE
This Preliminary information communicates that the OAT sensor may not read correctly upon startup after the vehicle has been parked for two hours or more. Engineering is aware of the concern and is working on a resolution.
This 2020 CADILLAC CT4 Technical Service Bulletin affects the 355200 EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL
20191002
355200 EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL
This Warranty Administration bulletin provides information for dealers/Service advisors on when and how to submit a Pre-Repair Authorization (PRA) (US dealers only).
This 2020 CADILLAC CT4 Technical Service Bulletin affects the 353000 EQUIPMENT:ELECTRICAL
20191010
353000 EQUIPMENT:ELECTRICAL
This informational bulletin provides information for dealers/technicians on the process to disable and enable passive unlocking.
This 2020 CADILLAC CT4 Technical Service Bulletin affects the 200000 WHEELS
20200224
200000 WHEELS
This informational bulletin provides information on how to properly clean the wheel with the condition of Black Sealant Material Visible on Wheel Edge.
This 2020 CADILLAC CT4 Technical Service Bulletin affects the 355200 EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL
20200214
355200 EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL
This warranty administration bulletin provide policy information to cover GMs policy on performing GM covered vehicle services and maintenance on vehicles originating/sold in Canada.
This 2020 CADILLAC CT4 Technical Service Bulletin affects the 060000 ENGINE (PWS)
20200207
060000 ENGINE (PWS)
This Bulletin provides graphics, information and guidelines for engine component wear to assist service personnel as a guideline to perform necessary engine repairs and prevent unnecessary engine replacement.
This 2020 CADILLAC CT4 Technical Service Bulletin affects the 350000 EQUIPMENT
20200207
350000 EQUIPMENT
This Bulletin provides graphics, information and guidelines for engine component wear to assist service personnel as a guideline to perform necessary engine repairs and prevent unnecessary engine replacement.
This 2020 CADILLAC CT4 Technical Service Bulletin affects the 060000 ENGINE (PWS)
20200228
060000 ENGINE (PWS)
This informational bulletin explains Unscheduled Supplemental Services (including Flushing Services and Additives) and the Proper use of GM Simplified Maintenance Schedules.
This 2020 CADILLAC CT4 Technical Service Bulletin affects the 356000 EQUIPMENT ADAPTIVE
20200228
356000 EQUIPMENT ADAPTIVE
This informational bulletin explains Unscheduled Supplemental Services (including Flushing Services and Additives) and the Proper use of GM Simplified Maintenance Schedules.
This 2020 CADILLAC CT4 Technical Service Bulletin affects the 350000 EQUIPMENT
20200228
350000 EQUIPMENT
This informational bulletin explains Unscheduled Supplemental Services (including Flushing Services and Additives) and the Proper use of GM Simplified Maintenance Schedules.
This 2020 CADILLAC CT4 Technical Service Bulletin affects the 100000 POWER TRAIN
20191002
100000 POWER TRAIN
This Preliminary information communicates to the dealer technician that the 10L60, 10L80 and the 10L90 transmissions have been place on a part restriction. Dealers are to contact the Product Quality Center before replacing the transmission
This 2020 CADILLAC CT4 Technical Service Bulletin affects the 063100 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL
20200123
063100 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL
This informational bulletin provides information to dealership personnel for new vehicles with less than 1,000 miles that may not pass California smog inspection or smog inspection in other states.
This 2020 CADILLAC CT4 Technical Service Bulletin affects the 350000 EQUIPMENT
20200214
350000 EQUIPMENT
This informational bulletin provides information on Wheel Alignment Specifications, Requirements and Recommendations for GM Vehicles.
This 2020 CADILLAC CT4 Technical Service Bulletin affects the 200000 WHEELS
20200214
200000 WHEELS
This informational bulletin provides information on Wheel Alignment Specifications, Requirements and Recommendations for GM Vehicles.
This 2020 CADILLAC CT4 Technical Service Bulletin affects the 350000 EQUIPMENT
20200117
350000 EQUIPMENT
This engineering informational bulletin is requesting information from technicians to perform the check list provided and contact the engineer listed in regards to 8 speed transmission shift quality.
This 2020 CADILLAC CT4 Technical Service Bulletin affects the 100000 POWER TRAIN
20200117
100000 POWER TRAIN
This engineering informational bulletin is requesting information from technicians to perform the check list provided and contact the engineer listed in regards to 8 speed transmission shift quality.
This 2020 CADILLAC CT4 Technical Service Bulletin affects the 355200 EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL
20200226
355200 EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL
This warranty administration bulletin provides information on the tires supplied with a new vehicle are covered by General Motors against defects in material or workmanship under the Bumper-to-Bumper New Vehicle Limited Warranty.
This 2020 CADILLAC CT4 Technical Service Bulletin affects the 190000 TIRES
20200226
190000 TIRES
This warranty administration bulletin provides information on the tires supplied with a new vehicle are covered by General Motors against defects in material or workmanship under the Bumper-to-Bumper New Vehicle Limited Warranty.
This 2020 CADILLAC CT4 Technical Service Bulletin affects the 356000 EQUIPMENT ADAPTIVE
20200214
356000 EQUIPMENT ADAPTIVE
This Warranty Administration bulletin provides information on Essential Tools that include Consumable Parts (U.S. Only).
This 2020 CADILLAC CT4 Technical Service Bulletin affects the 355200 EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL
20200214
355200 EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL
This Warranty Administration bulletin provides information on Essential Tools that include Consumable Parts (U.S. Only).
This 2020 CADILLAC CT4 Technical Service Bulletin affects the 356000 EQUIPMENT ADAPTIVE
20200102
356000 EQUIPMENT ADAPTIVE
This informational bulletin advises of a new fuel injection cleaner kit used for decarbonizing the intake valves to correct conditions of rough idle, Crank no start, extended crank or misfire, MIL with DTCs, and explains how Top Tier fuels
This 2020 CADILLAC CT4 Technical Service Bulletin affects the 350000 EQUIPMENT
20200102
350000 EQUIPMENT
This informational bulletin advises of a new fuel injection cleaner kit used for decarbonizing the intake valves to correct conditions of rough idle, Crank no start, extended crank or misfire, MIL with DTCs, and explains how Top Tier fuels
This 2020 CADILLAC CT4 Technical Service Bulletin affects the 073000 FUEL SYSTEM, GASOLINE:FUEL INJECTION SYSTEM
20200102
073000 FUEL SYSTEM, GASOLINE:FUEL INJECTION SYSTEM
This informational bulletin advises of a new fuel injection cleaner kit used for decarbonizing the intake valves to correct conditions of rough idle, Crank no start, extended crank or misfire, MIL with DTCs, and explains how Top Tier fuels
This 2020 CADILLAC CT4 Technical Service Bulletin affects the 355200 EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL
20200227
355200 EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL
This bulletin provides information on Warranty Administration ? Required Operating Procedures - 8 Points (U.S. Only).
This 2020 CADILLAC CT4 Technical Service Bulletin affects the 171100 LATCHES/LOCKS/LINKAGES:DOORS:LATCH
20200122
171100 LATCHES/LOCKS/LINKAGES:DOORS:LATCH
This informational bulletin provides information for dealers/technicians on the process to disable and enable passive unlocking.
This 2020 CADILLAC CT4 Technical Service Bulletin affects the 162300 STRUCTURE:BODY:DOOR
20200122
162300 STRUCTURE:BODY:DOOR
This informational bulletin provides information for dealers/technicians on the process to disable and enable passive unlocking.
This 2020 CADILLAC CT4 Technical Service Bulletin affects the 355200 EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL
20200117
355200 EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL
This Warranty Administration bulletin provides information for dealers/Service advisors on when and how to submit a Pre-Repair Authorization (PRA) (US dealers only).
This 2020 CADILLAC CT4 Technical Service Bulletin affects the 356000 EQUIPMENT ADAPTIVE
20191112
356000 EQUIPMENT ADAPTIVE
This technical bulletin provides a procedure on how to clean and resurface aluminum wheel bead seats for vehicles that have the condition of Tire Slowly Goes Flat, Tire Air Loss, Low Tire Pressure Warning Light Illuminated, Aluminum Wheel B
This 2020 CADILLAC CT4 Technical Service Bulletin affects the 350000 EQUIPMENT
20191112
350000 EQUIPMENT
This technical bulletin provides a procedure on how to clean and resurface aluminum wheel bead seats for vehicles that have the condition of Tire Slowly Goes Flat, Tire Air Loss, Low Tire Pressure Warning Light Illuminated, Aluminum Wheel B
This 2020 CADILLAC CT4 Technical Service Bulletin affects the 200000 WHEELS
20191112
200000 WHEELS
This technical bulletin provides a procedure on how to clean and resurface aluminum wheel bead seats for vehicles that have the condition of Tire Slowly Goes Flat, Tire Air Loss, Low Tire Pressure Warning Light Illuminated, Aluminum Wheel B
This 2020 CADILLAC CT4 Technical Service Bulletin affects the 190000 TIRES
20191112
190000 TIRES
This technical bulletin provides a procedure on how to clean and resurface aluminum wheel bead seats for vehicles that have the condition of Tire Slowly Goes Flat, Tire Air Loss, Low Tire Pressure Warning Light Illuminated, Aluminum Wheel B
This 2020 CADILLAC CT4 Technical Service Bulletin affects the 356000 EQUIPMENT ADAPTIVE
20191106
356000 EQUIPMENT ADAPTIVE
This engineering information bulletin is requesting information on paint quality issue that drives a warrantable item type of repair on any 2019 or 2020 Cadillac Model and to submit a Field Product Report (FPR) using the FPR App.
This 2020 CADILLAC CT4 Technical Service Bulletin affects the 350000 EQUIPMENT
20191106
350000 EQUIPMENT
This engineering information bulletin is requesting information on paint quality issue that drives a warrantable item type of repair on any 2019 or 2020 Cadillac Model and to submit a Field Product Report (FPR) using the FPR App.
This 2020 CADILLAC CT4 Technical Service Bulletin affects the 120000 LIGHTING (PWS)
20191112
120000 LIGHTING (PWS)
This informational bulletin provides information for dealers/technicians on Exterior Lamp Condensation and Replacement Guidelines.
This 2020 CADILLAC CT4 Technical Service Bulletin affects the 356000 EQUIPMENT ADAPTIVE
20191112
356000 EQUIPMENT ADAPTIVE
This informational bulletin provides information for dealers/technicians on Exterior Lamp Condensation and Replacement Guidelines.
This 2020 CADILLAC CT4 Technical Service Bulletin affects the 350000 EQUIPMENT
20191112
350000 EQUIPMENT
This informational bulletin provides information for dealers/technicians on Exterior Lamp Condensation and Replacement Guidelines.
This 2020 CADILLAC CT4 Technical Service Bulletin affects the 356000 EQUIPMENT ADAPTIVE
20191126
356000 EQUIPMENT ADAPTIVE
This informational bulletin provides information on key code security rules and information on GM keycode look-up applications.
This 2020 CADILLAC CT4 Technical Service Bulletin affects the 350000 EQUIPMENT
20191126
350000 EQUIPMENT
This informational bulletin provides information on key code security rules and information on GM keycode look-up applications.
This 2020 CADILLAC CT4 Technical Service Bulletin affects the 353000 EQUIPMENT:ELECTRICAL
20200115
353000 EQUIPMENT:ELECTRICAL
This Preliminary information communicates that the transfer case control module is on engineering restriction to verify diagnostics and service information.
This 2020 CADILLAC CT4 Technical Service Bulletin affects the 110000 ELECTRICAL SYSTEM
20200115
110000 ELECTRICAL SYSTEM
This Preliminary information communicates that the transfer case control module is on engineering restriction to verify diagnostics and service information.
This 2020 CADILLAC CT4 Technical Service Bulletin affects the 110000 ELECTRICAL SYSTEM
20200117
110000 ELECTRICAL SYSTEM
This Preliminary information communicates to the dealer technician that the part numbers for the internal wiring harnesses for the 8 speed RWD transmissions are not listed in the Electronic Parts Catalog. Technicians are to refer to the inf
This 2020 CADILLAC CT4 Technical Service Bulletin affects the 100000 POWER TRAIN
20200117
100000 POWER TRAIN
This Preliminary information communicates to the dealer technician that the part numbers for the internal wiring harnesses for the 8 speed RWD transmissions are not listed in the Electronic Parts Catalog. Technicians are to refer to the inf
This 2020 CADILLAC CT4 Technical Service Bulletin affects the 350000 EQUIPMENT
20200123
350000 EQUIPMENT
This Preliminary Information communication advises the technician that the Radio or Tuner, radio controls, Integrated Center Stack, HUD's, IPC's, and radio displays are placed on restriction through the General Motors Technical Assistance C
This 2020 CADILLAC CT4 Technical Service Bulletin affects the 110000 ELECTRICAL SYSTEM
20200123
110000 ELECTRICAL SYSTEM
This Preliminary Information communication advises the technician that the Radio or Tuner, radio controls, Integrated Center Stack, HUD's, IPC's, and radio displays are placed on restriction through the General Motors Technical Assistance C
This 2020 CADILLAC CT4 Technical Service Bulletin affects the 103000 POWER TRAIN:AUTOMATIC TRANSMISSION
20200114
103000 POWER TRAIN:AUTOMATIC TRANSMISSION
This Preliminary information communicates to the dealer technician that the part numbers for the internal wiring harnesses for the 8 speed RWD transmissions are not listed in the Electronic Parts Catalog. Technicians are to refer to the inf
This 2020 CADILLAC CT4 Technical Service Bulletin affects the 350000 EQUIPMENT
20191212
350000 EQUIPMENT
This preliminary information bulletin provides information om Service Programming System (SPS) Error Codes (E4398, E4399, E4403, M4404, M4413, M6954, M6955, E4414, E4423, E4491 or E6961).
This 2020 CADILLAC CT4 Technical Service Bulletin affects the 355200 EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL
20191125
355200 EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL
This informational bulletin provides information for dealers/technicians on Use of Dealer Case Management (DCM) and Being Prepared for Contacting U.S. Technical Assistance (TAC).
This 2020 CADILLAC CT4 Technical Service Bulletin affects the 350000 EQUIPMENT
20191125
350000 EQUIPMENT
This informational bulletin provides information for dealers/technicians on Use of Dealer Case Management (DCM) and Being Prepared for Contacting U.S. Technical Assistance (TAC).
This 2020 CADILLAC CT4 Technical Service Bulletin affects the 356000 EQUIPMENT ADAPTIVE
20200414
356000 EQUIPMENT ADAPTIVE
This preliminary informational bulletin provides information to dealership personnel which may be helpful when addressing underbody component corrosion with customers.
This 2020 CADILLAC CT4 Technical Service Bulletin affects the 162000 STRUCTURE:BODY
20200414
162000 STRUCTURE:BODY
This preliminary informational bulletin provides information to dealership personnel which may be helpful when addressing underbody component corrosion with customers.
This 2020 CADILLAC CT4 Technical Service Bulletin affects the 100000 POWER TRAIN
20200305
100000 POWER TRAIN
This engineering information (EI) ends the need for information from the field regarding 8 speed transmission shift quality.
This 2020 CADILLAC CT4 Technical Service Bulletin affects the 060000 ENGINE (PWS)
20200311
060000 ENGINE (PWS)
This engineering information (EI) is requesting information from technicians to perform the check list provided and contact the engineer listed in regards to engine oil found under their vehicle.
This 2020 CADILLAC CT4 Technical Service Bulletin affects the 350000 EQUIPMENT
20200421
350000 EQUIPMENT
This PI communicates a parts restriction is in effect on 2020 Cadillac CT4, CT5 and Chevrolet Corvette Amplifier.
This 2020 CADILLAC CT4 Technical Service Bulletin affects the 355200 EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL
20200429
355200 EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL
This Warranty Administration bulletin is for information on General Motors New Vehicle Tire Warranty Program (U.S. Dealers Only).
This 2020 CADILLAC CT4 Technical Service Bulletin affects the 190000 TIRES
20200429
190000 TIRES
This Warranty Administration bulletin is for information on General Motors New Vehicle Tire Warranty Program (U.S. Dealers Only).
This 2020 CADILLAC CT4 Technical Service Bulletin affects the 100000 POWER TRAIN
20200514
100000 POWER TRAIN
Service Update - Certain vehicles may have a condition where the transmission enters a neutral state when the internal range sensor (IRS) fault is active. Dealers are to reprogram the transmission control module.
This 2020 CADILLAC CT4 Technical Service Bulletin affects the 060000 ENGINE (PWS)
20200508
060000 ENGINE (PWS)
This technical bulletin advises of a new fuel injection cleaner kit used for decarbonizing the intake valves to correct conditions of rough idle, Crank no start, extended crank or misfire, MIL with DTCs, and explains how Top Tier fuels shou
This 2020 CADILLAC CT4 Technical Service Bulletin affects the 356000 EQUIPMENT ADAPTIVE
20200508
356000 EQUIPMENT ADAPTIVE
This technical bulletin advises of a new fuel injection cleaner kit used for decarbonizing the intake valves to correct conditions of rough idle, Crank no start, extended crank or misfire, MIL with DTCs, and explains how Top Tier fuels shou
This 2020 CADILLAC CT4 Technical Service Bulletin affects the 073000 FUEL SYSTEM, GASOLINE:FUEL INJECTION SYSTEM
20200508
073000 FUEL SYSTEM, GASOLINE:FUEL INJECTION SYSTEM
This technical bulletin advises of a new fuel injection cleaner kit used for decarbonizing the intake valves to correct conditions of rough idle, Crank no start, extended crank or misfire, MIL with DTCs, and explains how Top Tier fuels shou
This 2020 CADILLAC CT4 Technical Service Bulletin affects the 160000 STRUCTURE
20200429
160000 STRUCTURE
This Preliminary information communicates a parts restriction is in place for the Body Control Module on 2020 Cadillac CT4, CT5, and Chevrolet Corvette.
This 2020 CADILLAC CT4 Technical Service Bulletin affects the 110000 ELECTRICAL SYSTEM
20200429
110000 ELECTRICAL SYSTEM
This Preliminary information communicates a parts restriction is in place for the Body Control Module on 2020 Cadillac CT4, CT5, and Chevrolet Corvette.
This 2020 CADILLAC CT4 Technical Service Bulletin affects the 356000 EQUIPMENT ADAPTIVE
20200428
356000 EQUIPMENT ADAPTIVE
This informational bulletin includes information on Interior Cleaning - Instrument Panel (IP), Hard or Plastic Surfaces, Seats, Carpet, Leather, Vinyl, Fabric Cleaner, Stain Remover, Restorer - Product Availability.
This 2020 CADILLAC CT4 Technical Service Bulletin affects the 350000 EQUIPMENT
20200428
350000 EQUIPMENT
This informational bulletin includes information on Interior Cleaning - Instrument Panel (IP), Hard or Plastic Surfaces, Seats, Carpet, Leather, Vinyl, Fabric Cleaner, Stain Remover, Restorer - Product Availability.
This 2020 CADILLAC CT4 Technical Service Bulletin affects the 117000 DIGITAL INSTRUMENT PANEL
20200506
117000 DIGITAL INSTRUMENT PANEL
This informational bulletin includes information on Interior Cleaning - Instrument Panel (IP), Hard or Plastic Surfaces, Seats, Carpet, Leather, Vinyl, Fabric Cleaner, Stain Remover, Restorer - Product Availability.
This 2020 CADILLAC CT4 Technical Service Bulletin affects the 350000 EQUIPMENT
20200506
350000 EQUIPMENT
This informational bulletin includes information on Interior Cleaning - Instrument Panel (IP), Hard or Plastic Surfaces, Seats, Carpet, Leather, Vinyl, Fabric Cleaner, Stain Remover, Restorer - Product Availability.
This 2020 CADILLAC CT4 Technical Service Bulletin affects the 060000 ENGINE (PWS)
20200303
060000 ENGINE (PWS)
This Preliminary information communicates to the technician a service Diagnostic / Repair tip to avoid causing the crankshaft sprocket to disengage from the crankshaft during crankshaft balancer removal.
This 2020 CADILLAC CT4 Technical Service Bulletin affects the 110000 ELECTRICAL SYSTEM
20200304
110000 ELECTRICAL SYSTEM
This Preliminary information communicates to the dealer technician that the part numbers for the internal wiring harnesses for the 8 speed RWD transmissions are not listed in the Electronic Parts Catalog. Technicians are to refer to the inf
This 2020 CADILLAC CT4 Technical Service Bulletin affects the 100000 POWER TRAIN
20200304
100000 POWER TRAIN
This Preliminary information communicates to the dealer technician that the part numbers for the internal wiring harnesses for the 8 speed RWD transmissions are not listed in the Electronic Parts Catalog. Technicians are to refer to the inf
This 2020 CADILLAC CT4 Technical Service Bulletin affects the 110000 ELECTRICAL SYSTEM
20200529
110000 ELECTRICAL SYSTEM
This PI communicates a parts restriction is in effect on 2020 Cadillac CT4, CT5 and Chevrolet Corvette Amplifier.
This 2020 CADILLAC CT4 Technical Service Bulletin affects the 117000 DIGITAL INSTRUMENT PANEL
20200527
117000 DIGITAL INSTRUMENT PANEL
This informational bulletin includes information on Interior Cleaning - Instrument Panel (IP), Hard or Plastic Surfaces, Seats, Carpet, Leather, Vinyl, Fabric Cleaner, Stain Remover, Restorer - Product Availability.
This 2020 CADILLAC CT4 Technical Service Bulletin affects the 350000 EQUIPMENT
20200527
350000 EQUIPMENT
This informational bulletin includes information on Interior Cleaning - Instrument Panel (IP), Hard or Plastic Surfaces, Seats, Carpet, Leather, Vinyl, Fabric Cleaner, Stain Remover, Restorer - Product Availability.
This 2020 CADILLAC CT4 Technical Service Bulletin affects the 110000 ELECTRICAL SYSTEM
20200312
110000 ELECTRICAL SYSTEM
This Preliminary information communicates a parts restriction is in place for the Image Processing Module on 2020 Cadillac CT4, and CT5.
This 2020 CADILLAC CT4 Technical Service Bulletin affects the 110000 ELECTRICAL SYSTEM
20200312
110000 ELECTRICAL SYSTEM
This Preliminary information communicates a parts restriction is in place for the Long Range Radar Module on 2020 Cadillac CT4 and CT5.
This 2020 CADILLAC CT4 Technical Service Bulletin affects the 110000 ELECTRICAL SYSTEM
20200312
110000 ELECTRICAL SYSTEM
This Preliminary information communicates a parts restriction is in place for the Suspension Control Module on 2020 Cadillac CT4, CT5.
This 2020 CADILLAC CT4 Technical Service Bulletin affects the 251000 ELECTRONIC STABILITY CONTROL:AUTOMATIC (ASC)
20200312
251000 ELECTRONIC STABILITY CONTROL:AUTOMATIC (ASC)
This Preliminary information communicates a parts restriction is in place for the Suspension Control Module on 2020 Cadillac CT4, CT5.
This 2020 CADILLAC CT4 Technical Service Bulletin affects the 020000 SUSPENSION
20200312
020000 SUSPENSION
This Preliminary information communicates a parts restriction is in place for the Suspension Control Module on 2020 Cadillac CT4, CT5.
This 2020 CADILLAC CT4 Technical Service Bulletin affects the 280000 BACK OVER PREVENTION
20200312
280000 BACK OVER PREVENTION
This PI communicates a parts restriction is in effect on 2020 cadillac CT4, and CT5 Front View Camera Module.
This 2020 CADILLAC CT4 Technical Service Bulletin affects the 110000 ELECTRICAL SYSTEM
20200312
110000 ELECTRICAL SYSTEM
This PI communicates a parts restriction is in effect on 2020 cadillac CT4, and CT5 Front View Camera Module.
This 2020 CADILLAC CT4 Technical Service Bulletin affects the 273000 LANE DEPARTURE: BLIND SPOT DETECTION
20200312
273000 LANE DEPARTURE: BLIND SPOT DETECTION
This PI communicates a parts restriction is in effect on 2020 Cadillac CT4, and CT5 Side Blind Zone Module.
This 2020 CADILLAC CT4 Technical Service Bulletin affects the 130000 VISIBILITY
20200312
130000 VISIBILITY
This PI communicates a parts restriction is in effect on 2020 Cadillac CT4, and CT5 Side Blind Zone Module.
This 2020 CADILLAC CT4 Technical Service Bulletin affects the 110000 ELECTRICAL SYSTEM
20200312
110000 ELECTRICAL SYSTEM
This Preliminary information communicates that the E01 ECM p/n 12703874 is on part restriction.
This 2020 CADILLAC CT4 Technical Service Bulletin affects the 110000 ELECTRICAL SYSTEM
20200313
110000 ELECTRICAL SYSTEM
This PI communicates a parts restriction is in effect on 2020 Cadillac CT4, CT5 and Chevrolet Corvette Electronic Brake Boost Control Module and Valve Kit, Brake Pressure Modulator.
This 2020 CADILLAC CT4 Technical Service Bulletin affects the 030000 SERVICE BRAKES, HYDRAULIC
20200313
030000 SERVICE BRAKES, HYDRAULIC
This PI communicates a parts restriction is in effect on 2020 Cadillac CT4, CT5 and Chevrolet Corvette Electronic Brake Boost Control Module and Valve Kit, Brake Pressure Modulator.
This 2020 CADILLAC CT4 Technical Service Bulletin affects the 120000 EXTERIOR LIGHTING
20200313
120000 EXTERIOR LIGHTING
This Preliminary information communicates a parts restriction is in place for the exterior lighting module on 2020 Cadillac CT4, CT5 and Chevrolet Corvette.
This 2020 CADILLAC CT4 Technical Service Bulletin affects the 110000 ELECTRICAL SYSTEM
20200313
110000 ELECTRICAL SYSTEM
This Preliminary information communicates a parts restriction is in place for the exterior lighting module on 2020 Cadillac CT4, CT5 and Chevrolet Corvette.
This 2020 CADILLAC CT4 Technical Service Bulletin affects the 160000 STRUCTURE
20200313
160000 STRUCTURE
This Preliminary information communicates a parts restriction is in place for the Body Control Module on 2020 Cadillac CT4, CT5, and Chevrolet Corvette.
This 2020 CADILLAC CT4 Technical Service Bulletin affects the 110000 ELECTRICAL SYSTEM
20200313
110000 ELECTRICAL SYSTEM
This Preliminary information communicates a parts restriction is in place for the Body Control Module on 2020 Cadillac CT4, CT5, and Chevrolet Corvette.
This 2020 CADILLAC CT4 Technical Service Bulletin affects the 110000 ELECTRICAL SYSTEM
20200313
110000 ELECTRICAL SYSTEM
This Preliminary information communicates a parts restriction is in place for the Central Gateway Module on 2020 Cadillac CT4, CT5, and Chevrolet Corvette.
This 2020 CADILLAC CT4 Technical Service Bulletin affects the 110000 ELECTRICAL SYSTEM
20200313
110000 ELECTRICAL SYSTEM
This Preliminary information communicates a parts restriction is in place for the Short Range Radar Module on 2020 Cadillac CT4, and CT5.
This 2020 CADILLAC CT4 Technical Service Bulletin affects the 100000 POWER TRAIN
20200313
100000 POWER TRAIN
This Preliminary information communicates to the dealer technician that the 2020 Cadillic CT5 T93 transmission control module for the 10L80 10 speed transmission is on restriction through the Product Quality Center. Dealers are advised to
This 2020 CADILLAC CT4 Technical Service Bulletin affects the 100000 POWER TRAIN
20200313
100000 POWER TRAIN
This Preliminary information communicates a parts restriction is in place for the Automatic Transmission Control on 2020 Cadillac CT4, and CT5.
This 2020 CADILLAC CT4 Technical Service Bulletin affects the 110000 ELECTRICAL SYSTEM
20200313
110000 ELECTRICAL SYSTEM
This Preliminary information communicates that the transfer case control module is on engineering restriction to verify diagnostics and service information.
This 2020 CADILLAC CT4 Technical Service Bulletin affects the 110000 ELECTRICAL SYSTEM
20200316
110000 ELECTRICAL SYSTEM
This Preliminary information communicates a parts restriction is in place for the Sensing and Diagnostic Module on 2020 Cadillac CT4, CT5 and Chevrolet Corvette.
This 2020 CADILLAC CT4 Technical Service Bulletin affects the 110000 ELECTRICAL SYSTEM
20200316
110000 ELECTRICAL SYSTEM
This Preliminary information communicates to the dealer that a customer may comment that the MIL light is illuminated. The technician may find P1098 and/or P26BB set current or history. That this may be caused by a software anomaly, and th
This 2020 CADILLAC CT4 Technical Service Bulletin affects the 350000 EQUIPMENT
20200316
350000 EQUIPMENT
This PI communicates a parts restriction is in effect on 2020 Cadillac CT4, CT5 and Chevrolet Corvette Amplifier.
This 2020 CADILLAC CT4 Technical Service Bulletin affects the 110000 ELECTRICAL SYSTEM
20200316
110000 ELECTRICAL SYSTEM
This PI communicates a parts restriction is in effect on 2020 Cadillac CT4, CT5 and Chevrolet Corvette Amplifier.
This 2020 CADILLAC CT4 Technical Service Bulletin affects the 110000 ELECTRICAL SYSTEM
20200319
110000 ELECTRICAL SYSTEM
This Preliminary information communicates a parts restriction is in place for the Video Processing Module on 2020 Cadillac CT4,CT5 and Chevrolet Corvette. .
This 2020 CADILLAC CT4 Technical Service Bulletin affects the 010000 STEERING
20200323
010000 STEERING
This Preliminary information communicates a parts restriction is in place for the Power Steering Gear on 2020 Cadillac CT4 and CT5.
This 2020 CADILLAC CT4 Technical Service Bulletin affects the 110000 ELECTRICAL SYSTEM
20200325
110000 ELECTRICAL SYSTEM
This Preliminary information communicates a parts restriction is in place for the Suspension Control Module on 2020 Cadillac CT4, CT5, and Chevrolet Corvette.
This 2020 CADILLAC CT4 Technical Service Bulletin affects the 020000 SUSPENSION
20200325
020000 SUSPENSION
This Preliminary information communicates a parts restriction is in place for the Suspension Control Module on 2020 Cadillac CT4, CT5, and Chevrolet Corvette.
This 2020 CADILLAC CT4 Technical Service Bulletin affects the 350000 EQUIPMENT
20200507
350000 EQUIPMENT
This informational bulletin provides the dealership with how to prep a vehicle for delivery to the customer to aid in higher CSi scores.
This 2020 CADILLAC CT4 Technical Service Bulletin affects the 110000 ELECTRICAL SYSTEM
20200520
110000 ELECTRICAL SYSTEM
This informational bulletin provides information for the IPC odometer programming method quick reference guide.
This 2020 CADILLAC CT4 Technical Service Bulletin affects the 110000 ELECTRICAL SYSTEM
20200507
110000 ELECTRICAL SYSTEM
This Preliminary information communicates to the dealer technician that the part numbers for the internal wiring harnesses for the 8 speed RWD transmissions are not listed in the Electronic Parts Catalog. Technicians are to refer to the inf
This 2020 CADILLAC CT4 Technical Service Bulletin affects the 110000 ELECTRICAL SYSTEM
20200519
110000 ELECTRICAL SYSTEM
This Preliminary information communicates to the dealer that programming modules must be done in OFF power module using MDI2 on 2020 Cadillac CT4,CT5, and Chevrolet Corvette.
This 2020 CADILLAC CT4 Technical Service Bulletin affects the 110000 ELECTRICAL SYSTEM
20200519
110000 ELECTRICAL SYSTEM
This Preliminary information communicates to the dealer that programming modules must be done in OFF power module using MDI2 on 2020 Cadillac CT4,CT5, and Chevrolet Corvette.
This 2020 CADILLAC CT4 Technical Service Bulletin affects the 140000 AIR BAGS
20200520
140000 AIR BAGS
This Preliminary information communicates to the dealer that a customer may comment that the MIL light is illuminated. The technician may find P1098 and/or P26BB set current or history. That this may be caused by a software anomaly, and th
This 2020 CADILLAC CT4 Technical Service Bulletin affects the 100000 POWER TRAIN
20200518
100000 POWER TRAIN
This informational bulletin advises the technician not to replace the prop shaft if a small amount of grease is found leaking out.
This 2020 CADILLAC CT4 Technical Service Bulletin affects the 110000 ELECTRICAL SYSTEM
20200526
110000 ELECTRICAL SYSTEM
This informational bulletin provides information for dealers/technicians on the false setting of DTC U0212.
This 2020 CADILLAC CT4 Technical Service Bulletin affects the 073200 FUEL SYSTEM, GASOLINE:FUEL INJECTION SYSTEM:INJECTORS
20200505
073200 FUEL SYSTEM, GASOLINE:FUEL INJECTION SYSTEM:INJECTORS
This informational bulletin explains to the tech on how to order a new fuel injector by matching the part number on the part and ordering it from the EPC.
This 2020 CADILLAC CT4 Technical Service Bulletin affects the 350000 EQUIPMENT
20200504
350000 EQUIPMENT
This Preliminary Information communication advises the technician that the Radio or Tuner, radio controls, Integrated Center Stack, HUD's, IPC's, and radio displays are placed on restriction through the General Motors Technical Assistance C
This 2020 CADILLAC CT4 Technical Service Bulletin affects the 355200 EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL
20200318
355200 EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL
This warranty administration bulletin provides policy information for courtesy transportation and roadside assistance programs.
This 2020 CADILLAC CT4 Technical Service Bulletin affects the 200000 WHEELS
20200416
200000 WHEELS
This informational bulletin provides information for dealers/technicians on power seat, power mirrors and steering wheel entry/exit memory recall settings intermittently inoperative.
This 2020 CADILLAC CT4 Technical Service Bulletin affects the 110000 ELECTRICAL SYSTEM
20200416
110000 ELECTRICAL SYSTEM
This informational bulletin provides information for dealers/technicians on power seat, power mirrors and steering wheel entry/exit memory recall settings intermittently inoperative.
This 2020 CADILLAC CT4 Technical Service Bulletin affects the 010000 STEERING
20200416
010000 STEERING
This informational bulletin provides information for dealers/technicians on power seat, power mirrors and steering wheel entry/exit memory recall settings intermittently inoperative.
This 2020 CADILLAC CT4 Technical Service Bulletin affects the 350000 EQUIPMENT
20200306
350000 EQUIPMENT
This informational bulletin provides information for dealers/technicians on When and How to Submit a Field Product Report (FPR) (U.S. Dealers Only).
This 2020 CADILLAC CT4 Technical Service Bulletin affects the 190000 TIRES
20200304
190000 TIRES
This informational bulletin provides information for dealers/technicians on Use of Nitrogen Gas in Tires.
This 2020 CADILLAC CT4 Technical Service Bulletin affects the 356000 EQUIPMENT ADAPTIVE
20200403
356000 EQUIPMENT ADAPTIVE
This informational bulletin provides information on interior cleaning products and what is offered to clean the interiors of GM vehicles.
This 2020 CADILLAC CT4 Technical Service Bulletin affects the 350000 EQUIPMENT
20200403
350000 EQUIPMENT
This informational bulletin provides information on interior cleaning products and what is offered to clean the interiors of GM vehicles.
This 2020 CADILLAC CT4 Technical Service Bulletin affects the 353000 EQUIPMENT:ELECTRICAL
20200331
353000 EQUIPMENT:ELECTRICAL
This warranty administration bulletin explains to the technician that when using wiring repair labor operations, additional information may be needed when submitting Global Warranty transactions when doing wiring repairs.
This 2020 CADILLAC CT4 Technical Service Bulletin affects the 355200 EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL
20200303
355200 EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL
This warranty administration bulletin provides information on Warranty Administration ? Customer Concern Not Duplicated (CCND) Labor Operation Numbers.
This 2020 CADILLAC CT4 Technical Service Bulletin affects the 355200 EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL
20200302
355200 EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL
This warranty administration bulletin provides information on Global Warranty Management (GWM) Warranty Parts Center (WPC) Parts Return Program Information.
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