NHTSA Complaint #11440563 — 2018 LINCOLN NAVIGATOR

The contact owns a 2018 Lincoln Navigator. The contact stated that upon starting the vehicle, the vehicle shuddered and made abnormal rattling and knocking sounds. There were no warning lights illuminated. The dealer informed the contact that the failure was a design failure and was caused by oil not being pumped up to the timing chain properly. The contact stated that he received an unknown customer satisfaction program for the failure however, the dealer informed the contact that the parts for the repair were not yet available. The contact also stated that while driving 50-60 MPH, and attempting to overtake another vehicle, the accelerator pedal was depressed but failed to respond, causing the vehicle to inadvertently decelerate. The contact did not recall whether there were warning lights illuminated during the failure. The contact stated that the failure had been reoccurring while driving at various speeds while attempting to overtake other vehicles. The contact stated that the warning message "Shift Fault" and other unknown warning lights were illuminated. The vehicle was taken to the dealer who diagnosed that the battery needed to be replaced. The contact stated that the battery was replaced; however, the failure reoccurred while driving. The vehicle was taken back to the dealer and diagnosed that the battery needed to be replaced and that the vehicle had lost communication with the Body Control Module (BCM). The contact stated that the vehicle was taken to the dealer several times and the vehicle had been with the dealer since July 2021. The manufacturer was notified of the failure and a case was opened. The manufacturer advised the contact to obtain a vehicle rental at his own expense and he would be reimbursed. The contact stated that he had been renting a vehicle since July and that the manufacturer had failed to cover the expenses. The vehicle was not repaired. The approximate failure mileage was 6,126.