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Chevrolet Silverado 1500 Recall 24V797: Rear Wheels Can Lock Up, Raising Crash Risk

NHTSA campaign 24V797, reported October 24, 2024, 463,295 vehicles potentially affected.

What this recall means for you

Certain 2020-2021 GM full-size pickups and SUVs equipped with diesel engines may have a transmission control valve that can fail. If it fails, the rear wheels can lock up, which increases the risk of a crash.

Owners should have their vehicle repaired as soon as possible. Dealers will install new transmission control module software at no cost. GM will also cover the repair of any transmission that the new software identifies as containing a defective control valve. Owner notification letters were mailed December 12, 2024. Contact GM customer service at 1-888-988-7267, Cadillac at 1-800-458-8006, GMC at 1-800-462-8782, or Chevrolet at 1-800-222-1020. Check your VIN for open recalls to confirm whether your vehicle is affected.

Check whether this recall is open on your vehicle

The repair is normally free at an authorized dealer.

Official recall notice

Safety recall 24V797General Motors, LLC
Component
POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE:SOFTWARE; POWER TRAIN:AUTOMATIC TRANSMISSION:FLUID/LUBRICANT:VALVES/VALVE BODY
Problem
General Motors, LLC (GM) is recalling certain 2020-2022 Chevrolet Silverado 1500, 2500, 3500, GMC Sierra 1500, 2500, 3500, 2021 Cadillac Escalade, Escalade ESV, Chevrolet Tahoe, Suburban, GMC Yukon, and Yukon XL vehicles equipped with diesel engines. The transmission control valve may fail and cause the rear wheels to lock-up.
Risk
Rear wheel lock-up can increase the risk of a crash.
Remedy
Dealers will install new transmission control module software, free of charge. GM will provide a special coverage program to cover the repair of transmissions that are identified by the remedy software as containing a defective control valve. Owner notification letters were mailed December 12, 2024. Owners may contact GM customer service at 1-888-988-7267, Cadillac customer service at 1-800-458-8006, GMC customer service at GMC 1-800-462-8782 or Chevrolet customer service at 1-800-222-1020. GM's number for this recall is N242454440.
Notes
Owners may also contact the National Highway Traffic Safety Administration Vehicle Safety Hotline at 1-888-327-4236 (TTY 1-800-424-9153) or go to www.nhtsa.gov.

Affected vehicles

Cadillac Escalade2021
Cadillac Escalade ESV2021
Chevrolet Silverado 1500202020212022
Chevrolet Silverado 2500202020212022
Chevrolet Silverado 3500202020212022
Chevrolet Suburban2021
Chevrolet Tahoe2021
GMC Sierra 1500202020212022
GMC Sierra 2500202020212022
GMC Sierra 3500202020212022
GMC Yukon2021
GMC Yukon XL2021