Low pressure warning: switchRecall 79V-094 · 1979 GMC N9F064
GENERAL MOTORS CORP. recall 79V-094 covers 22 1979 GMC N9F064 for a low pressure warning: switch problem, reported to NHTSA on April 13, 1979.
Source: NHTSA recall 79V094000 and manufacturer quarterly reports. Started by the manufacturer.
The problem
THE INVOLVED VEHICLES FAIL TO MEET FEDERAL MOTOR VEHICLE SAFETY STANDARD NO. 121, "AIR BRAKE SYSTEMS", IN REGARD TO INCORRECT PLUMBING IN THE LOW AIR PRESSURE WARNING SYSTEM. AS A RESULT, A LOW AIR PRESSURE CONDITION IN THE REAR BRAKE AIR SUPPLY WILL NOT ACTUATE THE WARNING SYSTEM. THE AUDIBLE ALARM WOULD NOT FUNCTION AND THE DRIVER WOULD NOT BE WARNED OF A BRAKE MALFUNCTION.
The fix
THE LOW AIR PRESSURE WARNING SYSTEM WILL BE INSPECTED AND CORRECTED, IF NECESSARY, WITHOUT CHARGE.
VEHICLE DESCRIPTION: TRUCKS.SYSTEM: SERVICE BRAKES; LOW AIR PRESSURE WARNING DEVICES.CONSEQUENCES OF DEFECT: WITHOUT THE WARNING SIGNAL, REDUCED BRAKING CAPABILITYCOULD RESULT IN A VEHICLE ACCIDENT AND SERIOUS PERSONAL INJURIES.
Recall repairs are free. Confirm whether this recall is open on your vehicle by entering its VIN at nhtsa.gov/recalls.
Vehicles in this recall
Built from August 1, 1978 to October 1, 1978. Not every vehicle in these model years is included; check by VIN.