DESCRIPTION OF ISSUE

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.
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.

DESCRIPTION OF COMPONENT

SERVICE BRAKES, HYDRAULIC:POWER ASSIST:HYDRAULIC

RESOLUTION

DEALERS WILL REPLACE THE POWER BRAKE VACUUM BOOSTER ASSEMBLY.

NOTES

SYSTEM: BRAKES; POWER ASSIST; PRIMARY; BOOSTER. VEHICLE DESCRIPTION: MULTI-PURPOSE VEHICLES AND LIGHT DUTY TRUCKS ORIGINALLY SOLD OR CURRENTLY REGISTERED IN THE SOUTHERN CALIFORNIA COUNTIES OF LOS ANGELES, ORANGE, SAN BERNADINO, SAN DIEGO, RIVERSIDE, VENTURA, SANTA BARBARA, SAN LUIS OBISPO, IMPERIAL, AND KERN. NOTE: OWNERS WHO TAKE THEIR VEHICLES TO AN AUTHORIZED DEALER ON AN AGREED UPON SERVICE DATE AND DO NOT RECEIVE THE FREE REMEDY WITHIN A REASONABLE TIME, SHOULD CONTACT MAZDA AT 1-800-222-5500. ALSO CONTACT THE NATIONAL HIGHWAY TRAFFIC SAFETY ADMINISTRATION'S AUTO SAFETY HOTLINE AT 1-800-424-9393.

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National Highway Traffic Safety Administration
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