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Diesel GM trucks, SUVs risk rear wheel lock-up
high How serious is it? About this label
Rear wheels locking up while driving increases the risk of a crash. The notice does not tell owners to stop driving.
Key facts
| NHTSA campaign number | 24V797000 |
|---|---|
| Reported to NHTSA | Oct 24, 2024 |
| Manufacturer | General Motors, LLC |
| Part affected | Power Train:automatic Transmission:control Module:software |
| Vehicles covered | 24 model/year combinations, model years 2020–2022 |
| Do-not-drive advisory | No |
| Park-outside advisory | No |
| Repair | Free at any franchised dealer |
What's wrong, in plain English
On certain diesel Chevrolet, GMC and Cadillac trucks and SUVs, the transmission control valve may fail. If it fails, the rear wheels can lock up while the vehicle is being driven.
What you should do
2. Contact your dealer to schedule the free repair; call GM at 1-888-988-7267, Cadillac at 1-800-458-8006, GMC at 1-800-462-8782, or Chevrolet at 1-800-222-1020.
3. Dealers will install new transmission control module software at no cost.
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 24V797000. More in how recalls work.
Affected vehicles (24)
Show all 24 vehicles
Who to contact
Cadillac — official Cadillac recall lookup
Customer service: 1-800-458-8006
Chevrolet — official Chevrolet recall lookup
Customer service: 1-800-222-1020
GMC — official GMC recall lookup
Customer service: 1-800-462-8782
The bigger picture
- Cadillac Power Train Recalls Cover Wheel Lockup and Lost Propulsion · all 8 Cadillac recalls in this area
- Chevrolet Power Train Recalls Cover Drive Loss and Wheel Lockup · all 15 Chevrolet recalls in this area
- GMC Power Train Recalls Cover Wheel Lockup and Lost Propulsion · all 10 GMC recalls in this area
Other GMC Sierra 1500 recalls
- May 21, 2026Chevrolet Silverado, GMC Sierra Roof Air Bag Inflator Riskhigh
- May 7, 2026Chevrolet Tahoe, GMC Yukon Wheels Can Lock Upcritical
- Mar 19, 2026Chevy Silverado and GMC Sierra Roof Air Bag Defecthigh
- Feb 26, 2026GM vehicles may be missing the electronic owner's manuallow
- Feb 12, 2026Chevrolet Silverado, GMC Sierra Transmission Wheel Lockup Riskhigh
- Dec 17, 2025Wheelchair Restraints in Various Vehicles May Not Lockhigh
Official notice
- Component
- POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE:SOFTWARE
- Summary
- 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.
- Safety 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.
Verify your specific vehicle by VIN at nhtsa.gov. Recall repairs are free of charge by law.