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Silverado and Sierra: rear wheels can suddenly lock up

NHTSA campaign 26V083000 · Reported 2026-02-12 · General Motors, LLC

critical How serious is it? About this label

Very serious — the rear wheels can lock with no warning while you are driving; the notice does not tell owners to park the vehicle, but get it in as soon as the dealer can take it.

What's wrong, in plain English

These trucks were repaired under an earlier transmission recall, but that repair may not have been done correctly. A valve inside the automatic transmission can fail, and when it does the rear wheels can lock up while you are driving. Locked rear wheels can make the truck slide or spin and you could crash. The dealer will inspect your truck and install corrected transmission software at no charge. Owner letters went out on March 6, 2026.

What you should do

1. Enter your VIN at nhtsa.gov/recalls (these VINs became searchable February 12, 2026).
2. Call Chevrolet at 1-800-222-1020 or GMC at 1-800-462-8782 (GM recall N252516560) and ask for the earliest appointment.
3. Have the dealer inspect the truck and update the transmission software — it is free.

Affected vehicles (10)

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
POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE:SOFTWARE
Summary
General Motors, LLC is recalling certain 2020 Chevrolet Silverado 2500, 3500, GMC Sierra 2500, 3500, and 2020-2022 Chevrolet Silverado 1500 and GMC Sierra 1500 vehicles that may have been repaired incorrectly under recall 24V797. The transmission control valve may fail and cause the rear wheels to lock up.
Safety risk
Rear wheel lock up increases the risk of a crash.
Remedy
Dealers will inspect the vehicles and update the transmission control software, free of charge. Owner notification letters were mailed March 6, 2026. Owners may contact GMC customer service at 1-800-462-8782 or Chevrolet customer service at 1-800-222-1020. GM's number for this recall is N252516560. Vehicle Identification Numbers (VINs) involved in this recall became searchable on NHTSA.gov on February 12, 2026.

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