Recall 91E029000: Power Train, Automatic Transmission, Park/neutral Start Interlock Switch

NHTSA recall 91E029000 · announced August 12, 1991 · Allison · 3,250 units affected

The problem

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

The risk

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.

What to do

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

Official NHTSA recall notice →

Notes

SYSTEM: AUTOMATIC TRANSMISSIONS.EQUIPMENT DESCRIPTION: ALLISON AUTOMATIC TRANSMISSIONS: AT500, MT600, V730,HT700, OR CLBT700 FOR VARIOUS HEAVY DUTY VEHICLES.

Source: National Highway Traffic Safety Administration public recall data. This page reports official records and is not legal, medical, or repair advice.