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Chevrolet Silverado, GMC Sierra 2500 Spare Tire Can Disable ABS

NHTSA campaign 21V578000 · Reported Jul 29, 2021 · General Motors, LLC

high How serious is it? About this label

Without full ABS control of the rear wheels, braking may not work the way it should, which raises the risk of a crash. The notice does not tell owners to stop driving.

Key facts

NHTSA campaign number21V578000
Reported to NHTSAJul 29, 2021
ManufacturerGeneral Motors, LLC
Part affectedTires:temporary/emergency Spare Tire
Vehicles covered4 model/year combinations, model years 2020–2021
Do-not-drive advisoryNo
Park-outside advisoryNo
RepairFree at any franchised dealer

What's wrong, in plain English

Certain Chevrolet Silverado 2500 and GMC Sierra 2500 trucks are built with a 17-inch spare tire along with either 20-inch or 18-inch accessory road tires. If the spare tire is used together with those larger tires, the anti-lock braking system may not be able to control the rear wheels the way it normally would. This mismatch affects how the truck's brakes respond on the road.

What you should do

1. Check your VIN at nhtsa.gov/recalls to see if your truck is included.
2. Contact Chevrolet customer service at 1-800-222-1020 or GMC customer service at 1-800-462-8782 to have the correct spare tire and label installed.
3. The repair is free.
Where do I find my VIN, and what do I tell the dealer?

Your VIN is the 17-character code on the lower left of the windshield, on your registration and usually on your insurance card. Enter it at nhtsa.gov/recalls to see whether this recall is still open on your car. When you call the dealer, say you have an open safety recall and give them NHTSA campaign number 21V578000. More in how recalls work.

Affected vehicles (4)

Who to contact

Chevrolet — official Chevrolet recall lookup

Customer service: 1-800-222-1020

GMC — official GMC recall lookup

Customer service: 1-800-462-8782

Any franchised dealer for the brand can do the repair. Phone numbers are taken from manufacturer sites and recent NHTSA notices; if one has changed, the number in your own recall letter is the one to use.

The bigger picture

Other Chevrolet Silverado 2500 recalls

All 23 Silverado 2500 recalls

Official notice

Component
TIRES:TEMPORARY/EMERGENCY SPARE TIRE
Summary
General Motors, LLC. (GM) is recalling certain 2020-2021 Chevrolet Silverado 2500 and GMC Sierra 2500 vehicles equipped with a 17" spare tire (RPO ZHQ or ZXT) and either the 20" accessory road tire (RPO REM) or the 18" accessory road tire (RPO Q2V). Operating the spare tire with other 20" or 18" tires can prevent the Anti-Lock Braking System (ABS) from engaging.
Safety risk
An ABS system that cannot control the rear wheels independently increases the risk of a crash.
Remedy
Dealers will provide the appropriate spare tire and apply a new spare tire information label, free of charge. Owner notification letters were mailed on October 18, 2021. Owners may contact Chevrolet customer service at 1-800-222-1020; GMC customer service at 1-800-462-8782. GM's number for this recall is N212329780.

Verify your specific vehicle by VIN at nhtsa.gov. Recall repairs are free of charge by law.