Se Habla Español
Call Now for a FREE Case Review
Call Now for a FREE Case Review
We have recovered millions of dollars in Lemon Law cases.
Let us help you. Call 1-888-395-3666 for a free case review
Here are the technical service bulletins we have for the 2020 CHEVROLET SILVERADO 6500HD. If you have any questions, do not hesitate to Contact Us:
This 2020 CHEVROLET SILVERADO 6500HD Technical Service Bulletin affects the 070000 FUEL SYSTEM, GASOLINE
20190624
070000 FUEL SYSTEM, GASOLINE
This Bulletin provides information to correct a customer concern of a siren or whine noise from the in-tank fuel pump at temperatures below -6C or 20F, accompanied by start and stall, no start, loss of power and MIL illuminated. Technicians
This 2020 CHEVROLET SILVERADO 6500HD Technical Service Bulletin affects the 350000 EQUIPMENT
20190726
350000 EQUIPMENT
This informational bulletin provides process information for the (GWM) and (WPC) parts return program.
This 2020 CHEVROLET SILVERADO 6500HD 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 CHEVROLET SILVERADO 6500HD Technical Service Bulletin affects the 060000 ENGINE AND ENGINE COOLING
20191014
060000 ENGINE AND ENGINE COOLING
This technical bulletin provides a procedure to flush the cooler lines to validate if there is excessive debris in the fuel system caused by a failed part.
This 2020 CHEVROLET SILVERADO 6500HD Technical Service Bulletin affects the 080000 FUEL SYSTEM, DIESEL
20191017
080000 FUEL SYSTEM, DIESEL
This informational bulletin explains how to identify possible DEF contamination.
This 2020 CHEVROLET SILVERADO 6500HD 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 CHEVROLET SILVERADO 6500HD 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 CHEVROLET SILVERADO 6500HD 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 CHEVROLET SILVERADO 6500HD Technical Service Bulletin affects the 350000 EQUIPMENT
20191030
350000 EQUIPMENT
This informational bulletin provides technicians and dealership personnel with spray-in bed liner general information and repair procedures.
This 2020 CHEVROLET SILVERADO 6500HD Technical Service Bulletin affects the 010000 STEERING
20200203
010000 STEERING
This Preliminary information communicates The vehicle may have a concern of not turning as sharp one way or the other and/or the turning radius is not the same in either direction. The steering will not go stop to stop due to the steering l
This 2020 CHEVROLET SILVERADO 6500HD 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 CHEVROLET SILVERADO 6500HD Technical Service Bulletin affects the 110000 ELECTRICAL SYSTEM
20200214
110000 ELECTRICAL SYSTEM
Service Update - Certain vehicles may have an SES light, the fuel gauge unexpectedly reading empty, and/or the low fuel message falsely illuminate due to an error in the engine control module (ECM) calibration (DTC P0461). Dealers are to re
This 2020 CHEVROLET SILVERADO 6500HD Technical Service Bulletin affects the 060000 ENGINE AND ENGINE COOLING
20200214
060000 ENGINE AND ENGINE COOLING
Service Update - Certain vehicles may have an SES light, the fuel gauge unexpectedly reading empty, and/or the low fuel message falsely illuminate due to an error in the engine control module (ECM) calibration (DTC P0461). Dealers are to re
This 2020 CHEVROLET SILVERADO 6500HD Technical Service Bulletin affects the 353600 EQUIPMENT:AIR CONDITIONER
20191016
353600 EQUIPMENT:AIR CONDITIONER
This informational bulletin informs the technician of a possible low A/C charge in a low milage vehicle from the factory.
This 2020 CHEVROLET SILVERADO 6500HD Technical Service Bulletin affects the 355200 EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL
20191014
355200 EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL
This informational bulletin provides tips for showing a way to confirm if its a mechanical engine issue or not.
This 2020 CHEVROLET SILVERADO 6500HD 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 CHEVROLET SILVERADO 6500HD 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 CHEVROLET SILVERADO 6500HD 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 CHEVROLET SILVERADO 6500HD Technical Service Bulletin affects the 133000 VISIBILITY:POWER WINDOW DEVICES AND CONTROLS
20200131
133000 VISIBILITY:POWER WINDOW DEVICES AND CONTROLS
This SKU is a Power Window Regulator and Motor Assembly. The customer communication requested return of unsold inventory to inspect the software. The software may be too sensitive to the position of a locating magnet in the assembly causi
This 2020 CHEVROLET SILVERADO 6500HD Technical Service Bulletin affects the 110000 ELECTRICAL SYSTEM
20200131
110000 ELECTRICAL SYSTEM
This SKU is a Power Window Regulator and Motor Assembly. The customer communication requested return of unsold inventory to inspect the software. The software may be too sensitive to the position of a locating magnet in the assembly causi
This 2020 CHEVROLET SILVERADO 6500HD 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 CHEVROLET SILVERADO 6500HD 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 CHEVROLET SILVERADO 6500HD 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 CHEVROLET SILVERADO 6500HD 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 CHEVROLET SILVERADO 6500HD Technical Service Bulletin affects the 356000 EQUIPMENT ADAPTIVE
20191121
356000 EQUIPMENT ADAPTIVE
This technical bulletin provides repair information to correct a customer concern of Phone Ringer Volume Turned Down or Too Quiet.
This 2020 CHEVROLET SILVERADO 6500HD Technical Service Bulletin affects the 350000 EQUIPMENT
20191121
350000 EQUIPMENT
This technical bulletin provides repair information to correct a customer concern of Phone Ringer Volume Turned Down or Too Quiet.
This 2020 CHEVROLET SILVERADO 6500HD 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 CHEVROLET SILVERADO 6500HD 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 CHEVROLET SILVERADO 6500HD 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 CHEVROLET SILVERADO 6500HD 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 CHEVROLET SILVERADO 6500HD 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 CHEVROLET SILVERADO 6500HD 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 CHEVROLET SILVERADO 6500HD Technical Service Bulletin affects the 060000 ENGINE AND ENGINE COOLING
20200427
060000 ENGINE AND ENGINE COOLING
This Preliminary information communicates the possibility of dtc P12A6 with the possibility of a crank no start or extended crank concern.
This 2020 CHEVROLET SILVERADO 6500HD 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 CHEVROLET SILVERADO 6500HD 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 CHEVROLET SILVERADO 6500HD 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 CHEVROLET SILVERADO 6500HD Technical Service Bulletin affects the 118000 ELECTRICAL SYSTEM: SOFTWARE
20191101
118000 ELECTRICAL SYSTEM: SOFTWARE
N192279900 - Service Update. On certain vehicles equipped with an active hydraulic assist gear (RPO NV8), the driver may experience a steering wheel vibration while driving typically at speeds from 50 mph (80 km) to 80 mph (130 km). Deale
This 2020 CHEVROLET SILVERADO 6500HD Technical Service Bulletin affects the 010000 STEERING
20191101
010000 STEERING
N192279900 - Service Update. On certain vehicles equipped with an active hydraulic assist gear (RPO NV8), the driver may experience a steering wheel vibration while driving typically at speeds from 50 mph (80 km) to 80 mph (130 km). Deale
This 2020 CHEVROLET SILVERADO 6500HD Technical Service Bulletin affects the 356000 EQUIPMENT ADAPTIVE
20191115
356000 EQUIPMENT ADAPTIVE
N102269370 - Customer Satisfaction Program. Certain vehicles, may have a winter grille cover that does not have a hole for the front camera. Without the hole for the front camera, Surround or 360-degree View, is compromised when a front vie
This 2020 CHEVROLET SILVERADO 6500HD Technical Service Bulletin affects the 350000 EQUIPMENT
20191115
350000 EQUIPMENT
N102269370 - Customer Satisfaction Program. Certain vehicles, may have a winter grille cover that does not have a hole for the front camera. Without the hole for the front camera, Surround or 360-degree View, is compromised when a front vie
This 2020 CHEVROLET SILVERADO 6500HD Technical Service Bulletin affects the 161000 STRUCTURE:FRAME AND MEMBERS
20191115
161000 STRUCTURE:FRAME AND MEMBERS
N102269370 - Customer Satisfaction Program. Certain vehicles, may have a winter grille cover that does not have a hole for the front camera. Without the hole for the front camera, Surround or 360-degree View, is compromised when a front vie
This 2020 CHEVROLET SILVERADO 6500HD Technical Service Bulletin affects the 063100 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL
20200407
063100 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL
Emission Recall - Exceeds NOx Standard In Emissions Testing - General Motors has decided to conduct a voluntary emissions recall involving certain 2019-2020 Chevrolet Silverado 4500HD/5500HD/6500HD vehicles equipped with a 6.6L diesel engin
This 2020 CHEVROLET SILVERADO 6500HD Technical Service Bulletin affects the 118000 ELECTRICAL SYSTEM: SOFTWARE
20200505
118000 ELECTRICAL SYSTEM: SOFTWARE
This informational bulletin provides information for dealers/technicians on Glow Plug Control Module Update.
This 2020 CHEVROLET SILVERADO 6500HD 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 CHEVROLET SILVERADO 6500HD 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 CHEVROLET SILVERADO 6500HD 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 CHEVROLET SILVERADO 6500HD 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 CHEVROLET SILVERADO 6500HD Technical Service Bulletin affects the 060000 ENGINE AND ENGINE COOLING
20200317
060000 ENGINE AND ENGINE COOLING
This informational bulletin explains the normal noises an engine may make when the ambient temperature outside is cold or the vehicle has sat for a few hours.
This 2020 CHEVROLET SILVERADO 6500HD 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.
1-888-395-3666
Edzant Price LLP
28470 Ave Stanford
Suite 360
Valencia, CA 91355
2001 - 2024 © All rights reserved.
