Power train:transmission:automatic:switch:solenoid
Defect Summary
An incorrect neutral start switch was installed on some transmissions which allows the truck to be started in a drive position.
Safety 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.
Corrective Action
Replace the neutral start switch if determined that the incorrect type of switch was installed.
Similar Recalls
Other recalls from Allison Transmission, Inc. or involving Power Train.
FAQ: Recall 91E029000
Your rights, the repair process, and what each field on this page means.
What is recall 91E029000?
NHTSA recall 91E029000 was issued by Allison Transmission, Inc. on August 12, 1991. It addresses: Power train:transmission:automatic:switch:solenoid. The recall affects approximately 3,250 vehicles, with the defect involving the Power Train component.
How do I get this recall repaired?
Contact any authorized Allison Transmission, Inc. dealer and reference NHTSA recall ID 91E029000 or the manufacturer campaign number NR (Not Reported). Under federal law, the repair is completely free regardless of vehicle age or owner history.
Is my vehicle included in this recall?
The only way to confirm is to look up your 17-character VIN at nhtsa.gov/recalls. NHTSA's tool will tell you if VIN-by-VIN this exact recall applies.
How long do I have to get a recall repair done?
There is no expiration on most federal safety recalls. Even if your vehicle is years old and you bought it used, the manufacturer is required to perform the repair at no cost.
Where does the data on this page come from?
All information on this page is sourced directly from the U.S. Department of Transportation public dataset for NHTSA recalls. Last refreshed: 2026-05-22. For the most current official notice, visit nhtsa.gov/recalls.