Lexus HS250h complete electrical failure while driving, occurred multiple times on Lexus HS250h

Some Lexus HS250h owners report experiencing complete electrical failures while driving, which can be attributed to several potential causes. These issues may stem from a faulty wiring harness associated with the shifter or Transmission Control Module (TCM), as well as problems with the shifter or solenoid. Owners have noted that such failures can result in all electrical systems shutting down, dashboard lights flickering, and the vehicle stalling unexpectedly. Additionally, flickering dashboard lights may indicate loose connections or alternator problems, while difficulties in starting the vehicle and complete power loss could signal severe electrical issues. It is recommended that owners facing repeated electrical failures seek inspection from a qualified mechanic to diagnose and resolve these critical problems.