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GM SUVs, Trucks: Roof-Rail Air Bag May Underperform
high How serious is it? About this label
If the diffuser separates during deployment, the air bag may not work as well as it should, increasing the risk of injury in a crash. The notice does not tell owners to stop driving.
Key facts
| NHTSA campaign number | 20V446000 |
|---|---|
| Reported to NHTSA | Jul 30, 2020 |
| Manufacturer | General Motors LLC |
| Part affected | AIR Bags:side/window:curtain:inflator |
| Vehicles covered | 12 model/year combinations, model years 2020 |
| Do-not-drive advisory | No |
| Park-outside advisory | No |
| Repair | Free at any franchised dealer |
What's wrong, in plain English
On affected vehicles, a part called the diffuser, inside the roof-rail air bag inflator, may not have been properly attached to the inflator. This means the diffuser could come apart from the inflator when the air bag deploys.
What you should do
2. Contact your dealer: Chevrolet customer service at 1-800-630-2438, Cadillac at 1-800-333-4223, or Buick at 1-800-521-7300.
3. The repair is free of charge.
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 20V446000. More in how recalls work.
Affected vehicles (12)
Who to contact
Buick — official Buick recall lookup
Customer service: 1-800-521-7300
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
- Buick Air Bag Recalls Cover Deployment and Warning Light Problems · all 5 Buick recalls in this area
- Cadillac Air Bag Recalls Cover Deployment and Warning Light Problems · all 4 Cadillac recalls in this area
- Chevrolet Air Bag Recalls Cover Deployment, Sensors, and Mounting Problems · all 19 Chevrolet recalls in this area
- GMC Air Bag Recalls Cover Inflator Ruptures and Deployment Problems · all 11 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
- AIR BAGS:SIDE/WINDOW:CURTAIN:INFLATOR
- Summary
- General Motors, LLC. (GM) is recalling certain 2020 Buick Enclave, Cadillac XT5 and XT6, Chevrolet Blazer, Silverado 1500, 2500 and 3500 and Traverse and GMC Acadia and Sierra 1500, 2500 and 3500 vehicles. The diffuser component of the Roof-Rail Air Bag (RRAB) inflator may not have been properly crimped to the inflator and could separate from the inflator during air bag deployment.
- Safety risk
- If the diffuser separates from the inflator during deployment, RRAB performance may be degraded, increasing the risk of injury in a crash.
- Remedy
- GM will notify owners, and dealers will replace the suspect RRAB modules, free of charge. The recall began September 3, 2020. Owners may contact Chevrolet customer service at 1-800-630-2438, Cadillac customer service at 1-800-333-4223, or Buick customer service at 1-800-521-7300. GM's number for this recall is N202305380.
Verify your specific vehicle by VIN at nhtsa.gov. Recall repairs are free of charge by law.