General Motors (GM) has decided that a battery defect exists in certain 2022-2023 GMC Hummer EVs and 2022 BrightDrop EV600s. While GM works to develop a fix for this condition, owners will receive interim notifications alerting them of the problem. Once a remedy becomes available, GM will send a second notification with a time frame for repairs.

GM first became aware of the problem in July 2022 after receiving Speak Up For Safety (SUFS) submissions relating to potential electrocoating and urethane sealing issues in certain Hummer EV battery packs. After further investigation, two manufacturing errors were identified.

  1. Under cured electrocoating along certain portions of the battery tray.
  2. Improper urethane seal repair could result in poor urethane seal adhesion in battery packs built during specific build windows.

According to the defect report, flanges on the battery pack enclosure may have been improperly primed or electrocoated, inhibiting proper adhesion of the urethane sealant. If water enters the battery pack enclosure and causes a battery pack malfunction, one or more malfunction indicator lamps may illuminate and the driver information center will display a warning message.

GM is aware of two field reports and a relevant report involving a GM test vehicle. All three vehicles had water leaks at urethane seals that had been repaired by the battery pack supplier during pack assembly. Water inside the battery packs triggered the vehicles’ onboard diagnostics, and the drivers received notification of a battery-pack malfunction.

GM is not aware of any accidents, injuries, or fires related to this condition. GM’s Safety Field Action Decision Authority (SFADA) decided to conduct a safety recall on vehicles containing packs with potentially improperly repaired urethane seals.

The remedy is currently under development. Interim letters notifying owners of the safety risk are expected to be mailed on November 28, 2022. Second letters will be sent once the remedy is available. GM’s number for this recall is N222380031 and the NHTSA campaign number is 22V-771.

General Motors (GM) will be contacting the owners of certain 2022-2023 Chevrolet Equinox and 2022 GMC Terrain SUVs because the driver’s seat in these vehicles may have a defect that could affect the drivers safety. The vehicles involved are equipped with powerd driver seats without the memory function.

GM became aware of the problem in July 2022 during noise testing at their assembly plant, after a driver seat frame height adjust pivot bolt was discovered on the floor of one of the test vehicles. The problem was brought to the attention of GM’s Speak Up For Safety program and inspections of vehicles at GM assembly plants and parts returned to the supplier was initiated. GM identified several stripped or loose pivot bolts in power seat frames produced by the supplier between June 30, 2022 and July 15, 2022, and decided to conduct a safety recall.

According to the defect report, the seat frame supplier assembly process did not detect improperly torqued bolts. As a result, the driver seats in these vehicles may have a stripped or loose bolt at the seat frame height adjust pivot. If the seat frame height adjust pivot bolt comes out of the pivot joint, the seat structure may not properly restrain the occupant during an accident and could increase the risk of injury. Vehicle occupants may hear squeaks or rattles coming from the driver’s seat, and/or the seat may feel loose.

Owners will be asked to return to their dealers to have the driver’s seat inspected and replace the seat cushion frame, if necessary. GMC’s number for this recall is N222377890 and the NHTSA campaign number is 22V-724.

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General Motors (GM) will be contacting the owners of certain 2021-2022 Cadillac, Chevrolet, and GMC SUVs equipped with third-row seating. These vehicles may have been manufactured with an improperly formed mounting bracket rivet that may not restrain an occupant during an accident.

The vehicles affected by this problem include:

2021-2022 Cadillac Escalade
2021-2022 Cadillac Escalade ESV
2021-2022 Chevrolet Suburban
2021-2022 Chevrolet Tahoe
2021-2022 GMC Yukon
2021-2022 GMC Yukon XL

In May 2022, a GM dealership received a customer complaint about the separation of the third row seat belt assemblies in their 2021 Chevrolet Suburban. The problem was submitted to GM’s Speak Up For Safety program and a formal investigation was opened. During this investigation, another seven additional field reports were found that could be related to this condition. Further investigation into the problem determined that operators at the seat belt buckle assembly supplier’s manufacturing plant may have not properly followed manufacturing processes and as a result, may have missed the rivet forming operation. In July, GM’s investigator met with the seat belt buckle assembly supplier to determine the scope of potentially affected parts. On August 4, 2022, GM’s Safety Field Action Decision Authority (SFADA) decided to conduct a safety recall.

According to the defect report, the rivet that retains the buckle to the mounting bracket in the left and/or right side third-row seat belt buckle assembly may not have been properly formed during the manufacturing process. If the assembly is not properly riveted, it will not restrain occupants during an accident and could result in increased injuries.

Owners receiving recall notices will be asked to return to their GM dealer to have the rivet head formation on both the left and right side third-row seat belt buckle assemblies inspected and replace seat belt buckle assemblies, as necessary. GM’s number for this recall is N222372380 and the NHTSA campaign number is 22V-617.

Certain 2022 Chevrolet Silverado and 2022 GMC Sierra vehicles equipped with a high-mounted brake light accessory sports bar, may fail to meet the Federal Motor Vehicle Safety Standard (FMVSS) for lamps, reflective devices and associated equipment.

General Motors (GM) first became aware of the problem in April 2022, when a GM engineer observed an accessory sports bar installation problem on a 2022 Chevrolet Silverado. The problem was reported to GM’s Speak Up For Safety (SUFS) program and a formal investigation was opened. The investigation reviewed customer field data and found 15 claims related to this condition

According to the defect report, some 2022 Chevrolet Silverado and 2022 GMC Sierra trucks may have a dealer-installed accessory sports bar that contains a high-mounted stop lamp that will not operate as intended when installed according to the provided instructions. The installation of the bar also blocks the vehicle’s existing high-mounted stop lamp. If the high-mounted stop lamp is not working or is not visible to other drivers, it will increase the risk of an accident.

The instructions for wiring the accessory sports bar is not compatible with the electrical design of certain 2022 Silverado and Sierra trucks. 2019-2021 model year vehicles and 2022 model year vehicles built with the previous electrical architecture (RPOs J21 and AMK) are not affected by this problem. This accessory is not intended for use on 2500/3500 series vehicles.

GM is not aware of any accidents or injuries associated with this condition. Investigators analyzed sales records to identify potentially affected trucks and over the counter sales and have decided to conduct a noncompliance recall. Approximately 242 vehicles are affected.

Owners receiving notices will be asked to return to their Chevy or GMC dealer to have the installation of the sports bar inspected and repaired as necessary. GM’s recall number for this recall is N222368110 and the NHTSA campaign number is 22V-463.

 Automotive Defect Investigation
The Office of Defects Investigation (ODI) of the National Highway Traffic Safety Administration (NHTSA) have opened a Preliminary Evaluation (PE21-010) to investigate complaints of malfunctions with the driver frontal air bags in certain Cadillac, Chevrolet and GMC vehicles.

The ODI has received fifteen consumer complaints about certain vehicles experiencing an airbag warning light illumination and/or a failure of the airbag to deploy during an accident with significant frontal damage. Nine of the consumer complaints say the air bag malfunction indicator lamp (MIL) was illuminated and six of the incidents had significant frontal damage with failure to deploy the airbags.

A TSB, issued in March 2021, addresses air bag MIL illumination accompanied by diagnostic trouble codes B0001-1B or B0012-0D. It also reports rust particles in the connection terminal interface of the driver airbag inflator as the cause of the airbag MIL illumination. Illumination of the airbag MIL under these circumstances may result in a non-deployment of the driver’s airbag during a frontal collision and increased risk of injury to the driver.

The vehicles under investigation include:

2020-2021 Cadillac CT4
2020-2021 Cadillac CT5
2020-2021 Cadillac Escalade
2020-2021 Cadillac Escalade ESV
2020-2021 Cadillac XT5
2020-2021 Chevrolet Silverado 1500
2020-2021 Chevrolet Silverado 2500
2020-2021 Chevrolet Silverado 3500
2020 Chevrolet Silverado 4500HD
2020 Chevrolet Silverado 5500HD
2020 Chevrolet Silverado 6500HD
2020-2021 Chevrolet Suburban
2021 Chevrolet Suburban 1500
2020-2021 Chevrolet Tahoe
2020-2021 GMC Sierra 1500
2020-2021 GMC Sierra 2500
2020-2021 GMC Sierra 3500
2020 GMC Sierra Denali
2020-2021 GMC Yukon
2020-2021 GMC Yukon XL

ODI have opened this preliminary investigation to determine the scope and severity of the potential problem and to fully assess the potential safety-related issues. If the investigation results in a recall, an estimated 749,312 vehicles could be affected.

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.

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

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.