NHTSA Complaint #11461818 — 2003 JAGUAR S-TYPE

The contact owns a 2003 Jaguar S-Type. The contact stated while driving approximately 20-25 MPH, the vehicle would shift into reverse independently and would lock up while the gear shifter was in a drive(D). The gear box fault warning light was illuminated. The contact depressed the accelerator pedal in order to continue to drive. Additionally, the contact stated that while at a complete stop with the vehicle in drive(D), the vehicle would reverse independently. The contact would immediately depress the brake pedal. The warning message "Gear Box Fault" was illuminated. There was no further information provided. The vehicle was taken to an independent mechanic several times where it was diagnosed that the failure was associated with NHTSA Campaign Number: 04V024000 (Power Train). The independent mechanic then contacted the local dealer who advised that the transmission control module (TCM) was previously reprogrammed under NHTSA Campaign Number: 04V024000 (Power Train) in 2004. The dealer advised that they could not assist as the software was no longer available. The vehicle was not repaired. The manufacturer was not notified of the failure. The failure mileage was approximately 120,000.