Table 1 shows two common electrical system related problems of the 2012 Lincoln Navigator.
| Problem Category | Number of Problems |
|---|---|
| Software problems | |
| Electrical System problems |
The contact owns a 2012 Lincoln Navigator. While driving 25 mph, the vehicle downshifted from second to first gear without warning. The vehicle was taken to robert hudson Ford Lincoln Mercury (2316 1st Ave se, moultrie, GA 31788, (229) 985-6603) where it was diagnosed that the pcm needed recalibaration. The vehicle was repaired; however, the software update failed to correct the failure. Additionally, the contact stated that the vehicle was difficult to shift from park to the drive gear. The contact stated that the vehicle was repaired, but the failure recurred. The contact stated that the vehicle was currently being repaired again for both failures. On several occasions while driving, the electrical system failed and caused the vehicle to stall. The contact stated that the instrument cluster, interior lighting, and exterior lighting failed. The manufacturer was notified of the failures and provided case number: cas-13124389. The approximate failure mileage was 30,000.
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.