NHTSA Complaint #11543327 — 2018 FORD F-150

We tried to turn the vehicle OFF and it would not switch off. Literally we turned the key off but the motor kept running. We took it to a local mechanic who said the vehicle's wiring system has been melted and it would need to go to a dealer. Ford confirmed that the wiring harness melted and the vehicle's but the cause is unclear. Pictures show that the wiring got very hot, hot enough to melt plastic and discolor it. Ford says, that's what happens sometimes with 7 year vehicles. However, where plastic is discolored means there was open flame or sparking. Had the truck caught fire, the passengers may not have been able to exit if the doors were locked and the electric locks didn't work. We have not had it repaired and are considering an insurance claim. There were no warning lamps. No one has inspected the vehicle other than the original local mechanic and the Ford Dealer in Auburn, CA.