NHTSA Campaign 91E029000

POWER TRAIN:AUTOMATIC TRANSMISSION:PARK/NEUTRAL START INTERLOCK SWITCH

Issued by GENERAL MOTORS CORP. · Reported Aug 12, 1991 · 3,250 vehicles affected

What's wrong

AN INCORRECT NEUTRAL START SWITCH WAS INSTALLED ON SOME TRANSMISSIONS WHICH ALLOWS THE TRUCK TO BE STARTED IN A DRIVE POSITION.

Consequence

IF VEHICLE ENGINE IS STARTED WITH THE TRANSMISSIONSELECTOR IN A DRIVE POSITION WITHOUT SERVICE OR PARKING BRAKES APPLIED, THEVEHICLE WILL MOVE AS SOON AS THE ENGINE STARTS AND COULD RESULT IN A VEHICLECRASH WITHOUT PRIOR WARNING.

Remedy

REPLACE THE NEUTRAL START SWITCH IF DETERMINED THAT THE INCORRECT TYPE OF SWITCH WAS INSTALLED.

Vehicles affected by this recall

Make Model Year Units
ALLISON TRANSMISSION 3,250

Source: NHTSA Campaign 91E029000 on nhtsa.gov. To check the current repair status for a specific vehicle, use our free VIN decoder.