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Lexus 2004 LS430 - Electronically Modulated Air Suspension Control; Pre-Collision Safety Failure Warning

Lexus 2004 LS430
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STARTING AND DRIVING
374
Electronically modulated air suspension
control
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).
Pre-collision safety failure warning
31L589
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
appear.

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