NHTSA recall 96V024002
Service Brakes, Hydraulic · Mazda North American Operations
Details
What's wrong: The studs which attach the brake master cylinder to the power brake vacuum booster assembly can develop stress corrosion cracking after being operated for an extended period of time in the southern california location.
Why it matters: If a crack occurs, it could result in one or both studs fracturing. The master cylinder could then separate from the vacuum booster, when the brakes are applied, preventing the service brakes from fully activating increasing the risk of a vehicle accident.
The fix: Dealers will replace the power brake vacuum booster assembly.
Affected vehicles on MotorDeets
All model years NHTSA lists
1994 Mazda B-Series Truck, 1991 Mazda Navajo, 1992 Mazda Navajo, 1993 Mazda Navajo, 1994 Mazda Navajo.
Recalls can cover only some VINs. Check yours on NHTSA's official recall page for 96V024002.
Source: NHTSA recall records. Summary shortened; the official notice has the full text.