Vehicle recall 21V162000 · March 10, 2021
2007-2009 Mazda B-Series Truck
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…
Source: NHTSA data as of September 22, 2026. Last refreshed Sep 23, 2026, 2:43 AM UTC.
- Summary
- 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.
- Consequence
- An inflator explosion may result in sharp metal fragments striking the driver or other occupants, resulting in serious injury or death.
- Remedy
- 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.
- 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.safercar.gov.
Recall details
- NHTSA campaign
- 21V162000
- Reported to NHTSA
- March 10, 2021
- Filed by
- Mazda North American Operations
- Manufacturer campaign
- 4821C
- Owner notification
- December 29, 2021
- Vehicles potentially affected
- 5,847
- Initiated by
- NHTSA’s Office of Defects Investigation
- Components
- Air bags › Frontal › Driver side › Inflator module
Vehicles covered
As listed by NHTSA. A recall usually covers only some vehicles of each model and year, often a production date range.
- Mazda B-Series Truck (2007-2009): 2009, 2008, 2007
Has your Mazda been repaired?
Recalls here come from NHTSA’s records for the model and year. Not every vehicle of a model is included in every recall, and this site can’t see whether a repair has been done. Only a VIN lookup can tell you that.
NHTSA’s VIN search doesn’t show recalls that were already repaired, recalls more than 15 years old, or some small manufacturers’ recalls. Recall repairs are free.