NHTSA

BRAKES:121 BRAKE SYSTEM

Hazard

DEPLETION OF AIR SUPPLY FROM THE PARKING BRAKE CIRCUITWOULD ALLOW THE BUS TO ROLL WITH THE PARKING BRAKE APPLIED. THIS COULDRESULT IN A VEHICLE ACCIDENT.

What You Should Do

Remedy

RELOCATE THE AIR SUPPLY LINE FOR THE INTERLOCK SYSTEM SO THAT THE AIR SUPPLY COMES FROM THE PARKING BRAKE CIRCUIT TO ENSURE THAT WHEN THE PARKING BRAKE IS APPLIED, THE PARKING BRAKE CANNOT BE DISENGAGED OR OVERRIDDEN BY COMPONENT FAILURES.

Products

BRAKES:121 BRAKE SYSTEM
Brand
VOLVO GM HEAVY TRUCK CORP
Manufacturer
VOLVO GM HEAVY TRUCK CORP

Units Affected

171