See also:

Theft deterrent system
Immobilizer system The vehicle's keys have built-in transponder chips that prevent the hybrid system from starting if the key has not been previously registered in the vehicle's on-board computer. ...

If a warning message is displayed
If a warning is shown on the instrument cluster, stay calm and perform the following actions: 1. Master warning light The master warning light also comes on or flashes in order to indicate that ...

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 ...