NHTSA recall 89V121000
Service brakes, air › Controls, pedals and linkages
GMC Brigadier and 1 more
Reported Jul 24, 19897 vehicles affectedGENERAL MOTORS CORP.Built Sep 1, 1987 – Dec 1, 1987
The defect
The rear axle relay valves (one per axle) may not meet brake release timing requirements of fmvss 121.
The risk
The rear axle brakes may not release in the timesspecified by fmvss 121.
The remedy
Replace the noncomplying relay valves.