NHTSA recall 79V178000
Service brakes, air
Motor Coach MC5B and 2 more
The defect
Certain vehicles do not comply to federal motor vehicle safety standard no. 121, "air brake systems". The low air warning signal may not activate until service reservoir pressure IS below 60 psi. Also, the brake release time may exceed the required 0.55 seconds on the right hand front wheel.
The remedy
Dealer will adjust the pin switch to pressure to bring vehicles into compliance with federal motor vehicle safety standard no. 121.