See also:

Automatic High Beam
The Automatic High Beam uses an in-vehicle camera sensor to assess the brightness of streetlights, the lights of oncoming and preceding vehicles, etc., and automatically turns high beam on or off ...

Have the vehicle inspected by your Lexus dealer immediately.
A buzzer sounds and a warning message is shown on the multi-informa- tion display. Failure to investigate the cause of the following warnings may lead to the system operating abnormally and possib ...

4-Wheel AHC (Active Height Control Suspension)
4-Wheel AHC adjusts the vehicle height in accordance with driving conditions. To select a height mode, shift the height select switch forward or backward. HI (high mode): For driving bumpy road ...