NHTSA Complaint #11476847 — 2012 LINCOLN NAVIGATOR

Vehicle randomly downshifts at speed causing sudden and jarring loss of speed. Vehicle will eventually and intermittently flash a service wrench error, speedometer stops working, and displays "000 Miles to Empty" message. Diagnosed at the dealer as a failing Molded Lead Frame. There was extended warranty coverage to 150,000 miles due to this being a know faulty part but my vehicle was over the mileage. I learned from the dealer servicing the vehicle that a software update--rather than replacement of the faulty part--under TSB 13-6-8 was performed by another dealership that I purchased the vehicle from. This "software update" was not disclosed to me nor did it show up on carfax or any service records for the vehicle. The software update merely masked the problem until the problem gets worse. Thankfully, I didn't experience violent downshifting at highway speeds that others have reported but have had the violent downshifting at 45mph and below, which still is a major safety issue. When I searched the VIN prior to purchasing the vehicle, no recalls were open because the software update closed it. I contacted Lincoln to report that violent downshifts occurred eventually even after the software update and the part should have been replaced in 2019. I was told by the Lincoln rep that there was nothing Lincoln would do because it was just a "Customer Satisfaction Program" rather than an all out recall and it was outside the extended coverage.