A LOW AIR PRESSURE WARNING LIGHT LOCATED IN THE DRIVER'S INSTRUMENT CLUSTER FAILS TO ACTIVATE IF THE FRONT BRAKE AIR RESERVOIR SYSTEM FALLS BELOW 60 PSI. THIS DOES NOT COMPLY WITH FMVSS NO.121, "AIR BRAKE SYSTEMS."
RiskCONSEQUENCE OF NON-COMPLIANCE: LOW AIR PRESSURE IN THE FRONT BRAKE SYSTEM COULD LEAD TO DECREASED VEHICLE BRAKING PERFORMANCE OR CAUSE THE EMERGENCY BRAKE SYSTEM TO ENGAGE WITHOUT THE DRIVER GIVEN VISUAL OR AUDIBLE WARNING.
FixDEALERS WILL INSTALL A WIRING HARNESS WHICH CORRECTLY CONNECTS THE FRONT BRAKE RESERVOIR SYSTEM LOW PRESSURE SWITCH TO THE LOW AIR PRESSURE WARNING LIGHT LOCATED IN THE DRIVER'S INSTRUMENT CLUSTER.