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Silverado and Sierra 2500: spare tire can disable anti-lock brakes

NHTSA campaign 21V578000 · Reported 2021-07-29 · General Motors, LLC

medium How serious is it? About this label

The truck is fine on its normal tires, but driving on that spare can cost you your anti-lock brakes and raise crash risk, so get the correct spare before you need it.

What's wrong, in plain English

These trucks came with a 17-inch spare tire and either 20-inch or 18-inch accessory road tires. Using that spare alongside those bigger tires can keep the anti-lock brakes from working. Without anti-lock braking able to manage the rear wheels separately, you have less control in a hard or emergency stop, and a crash is more likely. The dealer will give you the right spare tire and a new label showing the correct spare information.

What you should do

1. Check your VIN at nhtsa.gov/recalls under campaign 21V578000 (GM recall N212329780).
2. Contact your dealer — Chevrolet customer service 1-800-222-1020, GMC 1-800-462-8782.
3. Have the dealer supply the correct spare tire and apply the new spare tire information label, free of charge.

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

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.