See also:

Roll Sensing of Curtain Shield Airbags Off Switch
This switch can turn off the curtain shield airbags and front seat belt pretensioners in a vehicle rollover. ON/OFF Press and hold until indicator light turns on/off. ...

Electronic key battery
Replace the battery with a new one if it is depleted.  - You will need the following items: • Flathead screwdriver • Small Phillips-head screwdriver • Lithium battery (CR1632)  - ...

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 ...