One problem related to underhood wiring has been reported for the 1997 Lexus LS400. The most recently reported issues are listed below.
Vehicle was parked and noticed that there was smoke coming out from under the hood in the engine area. Attempted to open the hood and the engine was burned out. Mr. Davis wrote in saying this is not his vehicle, nor has his vehicle experienced any problems described, he has not filed any complaints.
| Underhood Wiring problems | |
| Starter Solenoid problems |