SERVICE BRAKES, AIR:ANTILOCK:ABS WARNING LIGHT
Apr 24, 1990
315 units potentially affected
The defect: LOW AIR WARNING PRESSURE SWITCH MAY NOT ACTIVATE THE WARNING SIGNAL UNTIL PRESSURE HAS DROPPED TO 55 PSI, RATHER THAN AT THE REQUIRED 60 PSI.
The risk: DRIVER WOULD NOT RECEIVE PROPER WARNING OF LOW AIR PRESSURE IN AIR BRAKE SYSTEM AND THIS CONDITION COULD RESULT IN A VEHICLE CRASH; ALSO, VEHICLE WOULD NOT COMPLY WITH FMVSS 121.
The remedy: REPLACE INAPPROPRIATE AIR WARNING PRESSURE SWITCHES.
MARMON MOTOR COMPANYView on NHTSA.gov