2007–2009 Mazda B-Series Truck Recall: Driver's side air bag inflator may explode due to propellant degradation…
NHTSA campaign 21V162000 · Air Bags · filed Mar 10, 2021 · verified Jul 30, 2026
The defect
Mazda North American Operations (Mazda) is recalling certain 2007-2009 B-Series pickup trucks. The driver's side air bag inflator may explode due to propellant degradation occurring after long-term exposure to high absolute humidity, high temperatures, and high temperature cycling.
The risk
An inflator explosion may result in sharp metal fragments striking the driver or other occupants, resulting in serious injury or death.
Check whether your specific vehicle is affected
Recall campaigns often cover only certain VIN ranges. Enter your VIN on the official NHTSA site to confirm whether your vehicle is included and whether the repair is still open.
Check VIN on NHTSA →The fix — what to do
Mazda will notify owners, and dealers will replace the driver-side air bag inflator with an alternate one, free of charge. Owners were notified of the safety risk with an interim letter mailed April 26, 2021. A second letter was sent December 2021. Owners may contact Mazda customer service at 1-800-222-5500 option 4. Mazda's number for this recall is 4821C.
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.safercar.gov.
Affected vehicles
| Make | Model | Model years |
|---|---|---|
| Mazda | B-Series Truck | 2007, 2008, 2009 |
Related recalls
More Mazda B-Series Truck recalls
- 2004–2006 Mazda B-Series Truck — Replacement front passenger air bag inflators may have been…
- 2006 Mazda B-Series Truck — Mazda requests owners NOT TO DRIVE these vehicles until…
- 2006 Mazda B-Series Truck — Mazda is requesting owners to NOT DRIVE these vehicles…
- 2009 Mazda B-Series Truck — These vehicles are equipped with certain air bag inflators…
- 2004–2006 Mazda B-Series Truck — Upon deployment of the passenger side frontal air bag…
Other campaigns involving Mazda vehicles
Source: NHTSA recall database, campaign 21V162000 (manufacturer number 4821C). Data last verified Jul 30, 2026.