See also:

Electrical system
...

Seat belts
Make sure that all occupants are wearing their seat belts before driving the vehicle. - Correct use of the seat belts l Extend the shoulder belt so that it comes fully over the shoulder, but ...

If the vehicle battery is discharged
If you have a set of jumper (or booster) cables and a second vehicle with a 12 volt battery, you can jump start your Lexus by following the steps below. Open the hood. Connecting the jumper cab ...