See also:

Have the vehicle inspected by your Lexus dealer immediately.
Failing to investigate the cause of the following warnings may lead to the system operating abnormally and possibly cause an accident. Have the vehicle inspected by your Lexus dealer immediately. ...

If the electronic key does not operate properly
If communication between the electronic key and vehicle is interrupted or the electronic key cannot be used because the battery is depleted, the smart access system with push-button start and wire ...

Replacing light bulbs
 - Headlight low beams (vehicles with halogen bulbs) Turn the cover counterclockwise and remove it. Turn the bulb base counterclock- wise. Unplug the connector while push- ing the lock rel ...