OFFICIAL NHTSA RECALL
91E029000
Power Train:automatic Transmission:park/neutral Start Interlock Switch
Reported Aug 12, 1991 · GENERAL MOTORS CORP.
Summary
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.
Notes
SYSTEM: AUTOMATIC TRANSMISSIONS.EQUIPMENT DESCRIPTION: ALLISON AUTOMATIC TRANSMISSIONS: AT500, MT600, V730,HT700, OR CLBT700 FOR VARIOUS HEAVY DUTY VEHICLES.
This campaign page uses the representative official campaign record. Applicability-specific source variants appear on the linked vehicle pages. Recall counts refer to campaigns, not affected vehicles.
Vehicle entries in this campaign
This is model-level recall history. It does not confirm whether a particular VIN is affected or has received the repair. Check with NHTSA ↗