NHTSA campaign 21V162000 · Mazda campaign 4821C

Mazda Recall 21V-162: Driver's Air Bag Inflator May Explode

Recall influenced by NHTSA's Office of Defects Investigation

NHTSA recall 21V162000 (Mazda campaign 4821C) was reported by Mazda North American Operations on March 10, 2021, with 5,847 vehicles potentially affected (per NHTSA). NHTSA's record lists the Mazda B-Series Truck for model years 2007–2009. Owners were notified on December 29, 2021, per NHTSA.

Updated daily from NHTSA's recall files

Is my vehicle included?

This page lists, by model year, the vehicles NHTSA's recall record names for campaign 21V162000 in the model years try.vin imports (1995 and later); NHTSA's own record can list more. A model year on the list doesn't mean every vehicle of that year is included, and some may already have been repaired.

To see whether a specific vehicle is included and still needs the repair, enter its VIN at nhtsa.gov/recalls.

Mazda VIN check: decode a VIN to see its year, make and model.

Key facts

NHTSA campaign: 21V162000 (also written 21V-162 or 21V162)
Filed by: Mazda North American Operations
Mazda campaign number: 4821C
Report received: March 10, 2021
Potentially affected: 5,847 vehicles (per NHTSA)
Component: Air Bags — Frontal — Driver Side — Inflator Module
Owners notified: December 29, 2021

Repair completion: 42.76% (latest rate the manufacturer reported to NHTSA; dataset updated October 21, 2026)

NHTSA cautions against comparing completion rates across recalls or manufacturers. How try.vin reads them.

Vehicles listed for this recall

NHTSA's recall record lists these vehicles for recall 21V162000. try.vin imports model years 1995 and later, so NHTSA's own list can be longer. Model years with a try.vin recall page link to it. Build dates are NHTSA's range for a model year (per NHTSA); a vehicle built in that range is not necessarily included.

Mazda

Mazda B-Series Truck
- 2007, 2008, 2009

All Mazda recalls

NHTSA's recall notice

As NHTSA's recall record states it for campaign 21V162000.

Defect description

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.

Safety consequence

An inflator explosion may result in sharp metal fragments striking the driver or other occupants, resulting in serious injury or death.

Manufacturer 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.

Sources

Official NHTSA notice for recall 21V162000

Campaign details come from NHTSA's recall files, which try.vin imports once a day. The plain-language subject and the completion rate come from the U.S. Department of Transportation's Recalls Data dataset. How try.vin reads recall data.