Electronically Modulated Air Suspension Control; Pre-Collision Safety Failure Warning - Lexus 2004 LS430 Owner's Manual

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STARTING AND DRIVING

Electronically modulated air suspension

When the pre- collision sensor detects an object or

vehicle with which your vehicle may collide, and

determines that a collision may be unavoidable, the

electronically modulated air suspension adjusts the

damping effect on the shock absorbers and regulates the

vehicle not to pitch forward so much.

The electronically modulated air suspension will operate in the

following conditions:

D When the ignition switch is turned on.

D When the vehicle speed is about 5 km/h (3 mph) or over.

D When the approaching speed in regard to the object or the

vehicle exceeds about 30 km/h (18 mph).

If there is a problem somewhere in the pre-collision safety

system, the master warning light comes on, a warning

tone sounds, and either of the following messages may