Category Archives: General Motors

News about General Motors automobile manufacturer. News about General Motors recalls, technical service bulletins (TSB), and problems regarding General Motors vehicles.

Rear Suspension Toe Link Could Separate On Cadillac And GMC SUVs

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General Motors (GM) has decided that a safety defect affecting suspension exists in certain 2022 Cadillac XT5, 2022 Cadillac XT6, and 2022 GMC Acadia vehicles. Owners will be receiving notices with instructions to return to their Cadillac or GMC dealer to have the suspension in their vehicle inspected and repaired as necessary.

GM became aware of the problem in March 2022, after a quality engineer at one of GM’s assembly plants identified a Cadillac XT6 that was missing a toe link to a knuckle bolt in the vehicle’s left side rear suspension. The manufacturing records showed that the bolt had been fully tightened, but further investigation found that the supplier’s error-proofing equipment had been improperly configured following a change in the assembly process. As a result, the tool operator could have failed to fully tighten the bolt without the error-proofing equipment detecting it.

According to the defect report, after an assembly process was moved to a new area, error-proofing equipment was not initially set up properly. This allowed a window where the operator may miss tightening certain fasteners without the failure being flagged. The affected toe links may be loose or become separated, resulting in misalignment of the left-rear wheel and increasing the risk of a crash

GM investigated the potentially affected population and inspected 271 suspensions that had been contained at the plant, with six more instances of loose fasteners identified. Although GM have not received any claims or complaints related to the subject condition and they are not aware of any associated accidents or injuries but have decided to conduct a safety recall.

Dealers will inspect the left-rear suspension and replace the fastener if it is loose or missing. GM’s number for this recall is N222364330 and the NHTSA campaign number is 22V-427. Approximately 736 vehicles may be affected.

Chevrolet HD Truck – Brake Line Leak

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General Motors (GM) will be asking a small number of 2022 Chevrolet Heavy Duty (HD) truck owners to return to their GM dealership for a problem affecting the brakes in their vehicles. The primary hydraulic brake line assembly may have not been tightened to manufacturer specifications and could loosen and leak.

The vehicles affected by this problem include:

2022 Chevrolet 4500HD
2022 Chevrolet 5500HD
2022 Chevrolet 6500HD

In April 2022, during assembly end of the line testing, GM discovered that several of their Chevrolet HD trucks were experiencing a soft brake pedal feel and/or extended stopping distances. Navistar, the manufacturer of these vehicles informed GM that they intended to file a safety recall for this condition, and in May, GM’s Safety and Field Action Decision Authority (SFADA) decided to conduct a safety recall on the GM badged vehicles produced in the same suspect production period as the recalled Navistar vehicles. GM is not aware of any relevant field reports or crashes related to this problem.

According to the defect report, an investigation by the manufacturer of these vehicles found that the pressure sensor fitting of the primary hydraulic brake line assembly may not have been tightened to the correct manufacturer torque specification. If the brake line assembly loosens and brake fluid is lost, drivers may experience a soft or low brake pedal feel, extended stopping distances and the brake warning light may illuminate. Owners may also notice brake fluid on the ground or in the engine compartment.

Owners receiving notices will be asked to return to their dealers to have the brake pressure switch tightened to specification. They will also bleed the brake system and top off the brake fluid.

GM’s number for this recall is N222368230 and the NHTSA campaign number is 22V-364.

GM Extends Warranty On Chevy Express And GMC Savanna For EGR Cooler Failure

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Certain 2013-2014 model year Chevrolet Express and 2013-2014 model year GMC Savana HD vehicles equipped with 6.6L Duramax diesel engines (RPO LGH) could experience a malfunction indicator light (MIL) illumination because of a problem affecting the Exhaust Gas Re-circulation (EGR) cooler.

clogged EGR

EGR coolers can fail for a few different reasons. Coolant passageways become clogged and prevent exhaust gas from cooling, some EGR coolers may be susceptible to corrosion, and repeated cycling of extreme temperatures (thermal stress) can all cause your EGR to fail.

There are a few indications that your EGR is failing: the engine idles rough and stalls; there is an increase in fuel consumption and a decrease in performance; the engine management light is always on, and there is a smell of fuel in and around the vehicle.

General Motors is providing owners of certain 2013-2014 Chevrolet Express and 2013-2014 GMC Savana HD vehicles equipped with 6.6L Duramax diesel engines vehicles, with additional warranty protection. This special coverage covers the problem described above for a period of 10 years or 120,000 miles (193,000 km), whichever occurs first. The warranty covers the vehicles from the date the vehicle was originally placed in service, regardless of ownership.

** GM should notify customers if this special warranty coverage is on their vehicle.**

Repairs and adjustments qualifying under this special coverage must be performed by a General Motors dealer.

View the complete warranty document here: MC-10150564-9999.pdf

GM Extends Warranty On Trucks For Defective Fuel Injectors

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General Motors (GM) will be providing owners of certain 2016-2017 Chevrolet, Cadillac and GMC trucks additional warranty coverage because of a problem that could affect the fuel injectors in their engines. The trucks receiving additional warranty are equipped with 5.3L or 6.2L engines.

Vehicles manufactured with these defective fuel injectors include:
2016-2017 Cadillac Escalade
2016-2017 Cadillac Escalade ESV
2016-2017 Chevrolet Silverado
2016-2017 Chevrolet Suburban
2016-2017 Chevrolet Tahoe
2016-2017 GMC Sierra
2016-2017 GMC Yukon
2016-2017 GMC Yukon XL

** GM will notify customers if this special warranty coverage is on their vehicle.**

The special coverage will extend the warranty of the above vehicles, for a period of 10 years or 150,000 miles (240,000km), whichever occurs first, from the date the vehicle was originally purchased, regardless of ownership. This special coverage only applies to vehicles in these states: California, Connecticut, Delaware, Maine, Maryland, Massachusetts, New Jersey, New York, Oregon, Pennsylvania, Rhode Island, Vermont, and Washington.

According to documents released by GM, “Under certain circumstances, one or more of the vehicle’s fuel injectors may deliver an improper amount of fuel to the engine. If this happens, the Malfunction Indicator Lamp (the Check Engine Light) will illuminate to warn the driver there is a problem. The engine will begin to run rough and will eventually stall. Diagnostic trouble codes, including P0300-P0308 or DTC P050D, will be set.

Other symptoms of a bad or dirty fuel injector include: The vehicle is hard to start and idles rough; Poor performance and increased fuel consumption; and an engine knock or detonation that could lead to complete engine failure.

2021-2022 Chevrolet Corvette – Missing Bearings In Rear Half Shaft

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A small number of 2021-2022 Chevrolet Corvette owners will be contacted by the manufacturer regarding a problem affecting the rear half shaft assemblies in their vehicles. According to the defect report, Some Corvettes may have a rear half-shaft assembly that is missing one or more ball bearings. If any ball bearings are missing, the half-shaft will eventually fail, resulting in a loss of propulsion.

In September 2021, a General Motors (GM) engineer carried out a warranty inspection of a rear half shaft recovered from a 2021 Chevrolet Corvette. The half shaft fractured and caused the vehicle to lose propulsion. Upon further inspection, it was found that the half shaft was missing two of six ball bearings. Follow-up, discussions with the supplier identified a potential failure in the inspection process that led to the miss-build. In October, the GM engineer submitted a report to GM’s Speak Up For Safety (SUFS) program and the supplier identified 19 vehicle identification numbers (VINs) containing half-shafts that may have been improperly inspected.

GM is not aware of any injuries or crashes related to this condition. In February, GM’s Safety and Field Action Decision Authority decided to conduct a safety recall for any 2021-2022 Chevrolet Corvette that may have received suspect rear half shaft assemblies.

Those receiving notices will be asked to return to their GM dealers to have the left and/or right rear half-shaft assemblies inspected and replaced as necessary. Owner notification letters are expected to be mailed in April. GM’s number for this recall is N212351320 and the NHTSA campaign number is 22V-091.

Do you think your Chevy Corvette could be a Lemon? Don’t live with a Lemon, especially if the problems you are having are safety-related. If you have any questions about your rights and the California Lemon Law, please call our office at 888-395-3666 for some great Lemon Law advice.

Rear Wheel Driveshaft Assemblies May Fail In Certain GM SUVs

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The rear-wheel driveshaft assemblies on certain 2021 Cadillac, 2021 Chevrolet and 2021 GMC SUV trucks could fail and cause an increased chance of an accident. GM will be contacting owners and asking them to return to their dealership for repairs.

In October 2021, GM’s supplier of rear-wheel drive-shaft assemblies informed them that certain assemblies shipped to GM’s Arlington, Texas plant may have been manufactured improperly. GM opened an investigation and found that the suspect components could deform over time and result in drive shaft seizures.

According to the defect report, the rear-wheel drive-shaft assemblies may have been manufactured with recirculating balls that were not properly heat treated. The recirculating balls could deform over time, resulting in noise and vibration. If the vehicle continues to be driven, the affected joint in the drive shaft assembly could seize and the vehicle could lose propulsion.

Vehicles manufactured with these defective driveshafts assemblies include:
2021 Cadillac Escalade
2021 Cadillac Escalade ESV
2021 Chevrolet Suburban
2021 Chevrolet Tahoe
2021 GMC Yukon
2021 GMC Yukon XL

The supplier’s equipment failure was corrected on June 4, 2021 and components produced after that time were properly heat treated. Vehicles produced after October 4, 2021, were equipped with drive shaft assemblies containing components that were produced outside of the suspect window.

Owners will be asked to return to their dealers to have the left and/or right rear driveshaft assemblies replaced. GM’s number for this recall is N212351030, N212351031 and N212351032. The NHTSA campaign number is 22V-036. Customer interim notifications are estimated to be sent out on March 14, 2022.

Don’t live with a Lemon. If you are having problems with your vehicle and have questions about your rights and the California Lemon Law, please call our office at 888-395-3666.

Chevy Traverse And Buick Enclave Driver Airbag Inflator May Explode

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A manufacturing defect affecting airbags will have a small number of 2008-2017 Buick Enclave and 2013-2017 Chevrolet Traverse owners returning to their dealerships for repairs.

In July 2015 the Office of Defects Investigation (ODI) opened a Preliminary Evaluation (PE15-027) into ARC Automotive Inc. (ARC) air bag inflators after receiving reports about two injury incidents involving a driver air bag inflator rupture. One incident involved a 2002 Chrysler Town & Country that had a dual-stage air bag inflator and the other involved a 2004 Kia Optima with a single-stage inflator. Both air bag inflators were manufactured by ARC.

During the evaluation the ODI gathered information from ARC about which air bag module manufacturers used the subject ARC inflators and requested information from the identified air bag module manufacturers about which vehicle manufacturers used modules with the subject ARC inflators. That process identified additional affected vehicle manufacturers, including General Motors.

According to the defect report, GM will be recalling certain 2008–2017 Buick Enclave and 2013-2017 Chevrolet Traverse vehicles for front driver airbag inflators which may have been installed either as original equipment or as part of a replacement driver airbag module during service. These airbags could contain a manufacturing defect that may result in an inflator rupture during deployment. If the inflator ruptures it could cause metal fragments to pass through the airbag and into the vehicle, potentially causing injury or death to vehicle occupants.

Dealers will inspect and replace the driver’s air bag module as necessary. GM’s number for this recall is N212349040 and the NHTSA campaign number is 21V-782.

2021-2022 Chevrolet Silverado And GMC Sierra – Under Hood Fire

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General Motors has decided that a defect relating to vehicle safety exists in certain 2021-2022 Chevrolet Silverado 2500/3500 and 2021-2022 GMC Sierra 2500/3500 trucks.

GM first became aware of the problem in September 2021 when two 2021 GMC Sierra 2500 vehicles experienced under hood fires at the assembly plant. Both vehicles were parked outside awaiting shipment and had been exposed to heavy rainfall the day before. Using X-ray and CT scans on the vehicles showed a gap between the bolt head and brake pressure modulator valve (BPMV), indicating that the assembly had not been properly sealed to prevent water intrusion. Both vehicles had been subject to temporary production process changes that involved offline replacement of the electronic brake control module (EBCM), which is a sub-assembly of the BPMV. Analysis of the vehicles also found that the fire started in this area.

According to the defect report, bolts attaching the BPMV may have not been properly tightened, failing to create the seal between two sub-assemblies that is intended to prevent water intrusion. If water becomes trapped in the BPMV, it could result in a short circuit, which could lead to an under hood fire.

Owners of these trucks are advised to park outside and away from other structures until the recall repair is completed. Dealers will correct the problem by replacing the BPMV assembly.. GM’s number for this recall is N212349181 and the NHTSA campaign number is 21V-758.