See also:

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 ...

Engine immobilizer system
The vehicle’s keys have built-in transponder chips that prevent the engine from starting if the key has not been previously registered in the vehicle’s on-board computer. Never leave the keys ...

Maintenance requirements
To ensure safe and economical driving, day-to-day care and regular maintenance is essential. It is the owner’s responsibility to perform regular checks. Lexus recommends the following maintenance. ...