Chevy Silverado HD, GMC Sierra HD Recalled For Mismatched Spare Tire

General Motors has issued a product safety recall for certain examples of the 2020 and 2021 model-year Chevy Silverado HD and GMC Sierra HD pickup trucks over an issue related to the factory spare tire.

The problem: affected trucks were ordered with either the 20-inch accessory wheel and tire combo (RPO code REM) or the 18-inch accessory road tire (RPO Q2V). Despite them being fitted with either 18-inch or 20-inch accessory tires, the trucks left the factory equipped with a 17-inch spare tire (RPO ZHQ or RPO ZXT). If this 17-inch spare tire is installed in the rear of the vehicle and one of the accessory road tires is installed on the other side of the rear end, the differences in revolutions per mile/kilometre may prevent the anti-lock braking system (ABS) from controlling the rear wheels independently on low-friction surfaces.

The hazards: if the ABS system cannot work as intended, there will be an increased risk of a crash.

The fix: dealers will provide an 18-inch spare tire and wheel assembly to owners with trucks equipped with either the 20-inch or 18-inch accessory wheel/tire combo. Dealers will also apply a new spare wheel/tire information label over the existing tire placard label. Additionally, owners will be provided with an Owner’s Manual insert explaining the 18-inch spare wheel/tire that should be used with the 18-inch or 20-inch accessory road wheels and tires.

Affected components: factory 17-inch spare tire.

Affected vehicles:

• 2020 Chevy Silverado 2500HD
• 2021 Chevy Silverado 2500HD
• 2020 GMC Sierra 2500HD
• 2021 GMC Sierra 2500HD

Number of affected vehicles: the number of vehicles that were fitted with a 17-inch spare wheel/tire combo at the factory, despite being equipped with larger accessory wheels, is currently not clear.

Owners should: affected owners will receive a notification letter from General Motors. All affected trucks were also placed under a stop delivery notice on July 29, 2021.

Contacts:

• GM recall number: N212329780
• Chevrolet Customer Service: 1-800-222-1020
• GMC Customer Service: 1-800-462-8782
• National Highway Traffic Safety Administration Vehicle Safety Hotline: 1-888-327-4236

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