Recall 26V083 covers 1,055 2020-2022 GMC Sierra and Silverado trucks for rear-wheel lockup. Repair is free at any franchised GMC dealer.
GMC is recalling 1,055 2020-2022 Sierra 1500, Sierra 2500, Sierra 3500, Silverado 1500, Silverado 2500, and Silverado 3500 vehicles that were repaired incorrectly under recall 24V797. A faulty transmission control valve can lock the rear wheels and increase crash risk, so GMC dealers will complete the recall repair free of charge.
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What's wrong?
The transmission control valve body in these 2020-2022 Sierra and Silverado trucks directs transmission fluid through internal valves so the automatic transmission can select the right gear. The transmission control module software watches that valve performance and is supposed to recognize excessive wear before the transmission reaches a rear-wheel lockup condition.
On affected trucks, the earlier 24V797 recall repair did not install the correct software version. That leaves the transmission without the intended protection, so a failing transmission control valve can continue operating until it causes the rear wheels to lock. The defect is in the repair software path, not a normal maintenance item an owner can correct at home.
The warning sign GM lists is sluggish or reduced propulsion. The truck can feel slow to move when you press the accelerator, and that reduced propulsion is the signal to stop relying on normal driving feel and arrange dealer service.
Who's affected?
Covers 1500, 2500, and 3500 pickup classes across the Chevrolet Silverado and GMC Sierra lines, all tied to the automatic transmission valve body.
| 2020 GMC Sierra 3500 | automatic transmission |
|---|---|
| 2020 GMC Sierra 3500 | automatic transmission |
| 2020 GMC Sierra 2500 | automatic transmission |
| 2020 GMC Sierra 2500 | automatic transmission |
| 2020 Chevrolet Silverado 3500 | automatic transmission |
| 2020 Chevrolet Silverado 3500 | automatic transmission |
| 2020 Chevrolet Silverado 2500 | automatic transmission |
| 2020 Chevrolet Silverado 2500 | automatic transmission |
| 2022 GMC Sierra 1500 | automatic transmission |
| 2022 GMC Sierra 1500 | automatic transmission |
| 2021 GMC Sierra 1500 | automatic transmission |
| 2021 GMC Sierra 1500 | automatic transmission |
| 2020 GMC Sierra 1500 | automatic transmission |
| 2020 GMC Sierra 1500 | automatic transmission |
| 2022 Chevrolet Silverado 1500 | automatic transmission |
| 2022 Chevrolet Silverado 1500 | automatic transmission |
| 2021 Chevrolet Silverado 1500 | automatic transmission |
| 2021 Chevrolet Silverado 1500 | automatic transmission |
| 2020 Chevrolet Silverado 1500 | automatic transmission |
| 2020 Chevrolet Silverado 1500 | automatic transmission |
| Units affected | 1,055 |
| Field incidents | NHTSA has logged no field incidents to date. |
A matching year and model does not guarantee inclusion. Check your VIN to confirm whether your specific pickup truck is included.
What's the safety risk?
Rear wheel lockup increases the risk of a crash. Sluggish or reduced propulsion is the warning sign for this recall. If you feel that change, ease off, avoid hard acceleration, and arrange dealer service soon. Repair is free at any franchised GMC dealer.
What should I do?
- Check your VIN to confirm your 2020-2022 GMC Sierra or Chevrolet Silverado is included in this recall.
- Contact a franchised GMC or Chevrolet dealer to schedule the free transmission-control software update.
- Ask the dealer to inspect the truck and update the transmission control software that addresses rear-wheel lockup from the transmission control valve failure.
- Bring the recall notice if GMC has mailed one. If not, reference recall number 26V083 when you call.
- Drive cautiously until the repair is complete. Leave extra following distance and stop driving if the rear wheels lock or the truck feels unsafe.
What happens at the repair
At the dealer, a GMC technician inspects the vehicle and updates the transmission control software. The recall repair is free, including the inspection and software update. GM uses its general reimbursement plan for this recall, so documented qualifying out-of-pocket repairs already paid before the recall notice can be submitted for review. Bring prior repair paperwork and proof of payment to the service desk, and ask how GM wants the reimbursement claim filed.
| Reimbursement | Reimbursement available |
|---|
Timeline
| February 12, 2026 | NHTSA published the recall |
|---|---|
| February 12, 2026 | Dealer notification began |
| February 12, 2026 | Dealer notification ended |
| February 12, 2026 | VIN-searchable in NHTSA's database — Check your VIN to see whether this recall applies to your specific vehicle. |
| March 6, 2026 | Owner notification mailed |
Frequently asked questions
What is recall 26V083?
Recall 26V083 covers 1,055 2020-2022 GMC Sierra and Chevrolet Silverado trucks that were repaired incorrectly under recall 24V797. The transmission control valve can fail and cause the rear wheels to lock up, increasing crash risk. Dealers will inspect the truck and update the transmission control software for free.
What should I do if my 2020-2022 GMC Sierra or Chevrolet Silverado is on this recall?
Check your VIN to confirm your specific truck is included in recall 26V083. If it is, contact a franchised GMC or Chevrolet dealer and ask for recall N252516560. The dealer will inspect the vehicle and update the transmission control software for free.
Is the recall repair free?
Yes. Federal recall law requires the manufacturer to repair the defect at no cost, and GM's remedy says dealers will inspect the vehicle and update the transmission control software free of charge. Parts and labor are covered at a franchised GMC or Chevrolet dealer.
What is the safety risk?
The safety risk is rear wheel lockup. If the transmission control valve fails, the rear wheels can lock up while the truck is moving, which increases crash risk. The free dealer repair addresses the software side of the problem after inspection.
What if I bought my GMC Sierra or Chevrolet Silverado used?
The free recall repair still applies. Recall coverage follows the VIN, not the first owner. Check your VIN to confirm whether your specific Sierra or Silverado is included, then give recall 26V083 and GM recall number N252516560 to the dealer service desk.
More information
| NHTSA campaign page | nhtsa.gov/vehicle-recalls/26V083000 |
|---|---|
| GMC customer service | 1-800-462-8782 |
| NHTSA recall # | 26V083 |
| NHTSA recall # (full) | 26V083000 |
Source documents
-
Download Quarterly Report (PDF) - Download Owner Notice (PDF)
- Download Recall Investigation Document (PDF) (PDF)
- Download Owner Notification Letter (PDF)
- Download Recall Acknowledgement (PDF)
- Download Recall Report (PDF)
This article is generated from NHTSA's primary recall filings and reviewed against the source on May 19, 2026. RecallNotify does not paraphrase NHTSA's consequence language; that text is reproduced as written above. Editorial standards →