Toyota Lexusc Owner's Handbook Manual page 510

In the following cases, the electronically modulated air
suspension will not operate.
D The underbody of the vehicle has touched the surface of the
road.
D The area around the suspension is covered with ice.
The indicator lights change as follows when the
electronically modulated air suspension will not operate.
1. The current mode indicator light goes off and the currently
selected mode indicator light blinks.
2. The selected mode indicator light goes off. (The vehicle
height does not change.) The selected mode indicator light
comes on again.
The vehicle's electronically modulated air suspension will not
be operable even if the vehicle is moved to a smooth road or
the ice is removed. To operate electronically modulated air
suspension, turn off the engine and then restart it.
electronically modulated air suspension will operate again.
"
1 Higher 2
3 Height control indicator lights
Selecting a mode: To select a mode, push either side of the
height select switch "Y" (higher) or "B" (lower).
D Selecting the "HI" mode
The
You can select the "HI" mode when the vehicle's speed is under
approximately 30 km/h (19 mph).
To change "N" to "HI" mode: Push the height selection
switch on the "Y" (higher) side once.
To change "LO" to "HI" mode: Push the height selection
switch on the "Y" (higher) side twice.
The "HI" indicator light blinks as the vehicle's height changes.
When the vehicle's height reaches the "HI" mode, the indicator
light remains on.
STARTING AND DRIVING
Lower
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