Lexus LX 470 Owner's Manual page 238

STARTING AND DRIVING
31X052
"f: Blinking F: Illuminating
When changing the vehicle height from the normal mode
to high:
1. The "N" (normal) mode indicator light goes off and the "HI"
(high) mode indicator light blinks.
2. After the vehicle height control reaches the high mode, the
high mode indicator light remains on.
With the active height control suspension turned off, if
you operate the height select switch or the vehicle height
is changing depending on the vehicle speed, the vehicle
height control enters the ready mode. In this case, the
height control indicator lights change as follows:
1. The present mode indicator light comes on and at the same
time the ready mode indicator light blinks.
2. When the active height control suspension is turned on, the
present mode indicator light goes off and the ready mode
indicator light blinks. (The vehicle height changes.)
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3. After the vehicle height has changed completely, the
changed mode indicator light stays on.
If the vehicle is loaded heavily, the vehicle height cannot
be raised even if the height select switch is operated. If the
underbody of the vehicle has touched the surface on
bumpy roads, the vehicle height cannot be lowered with
the height select switch. The height control indicator
lights change as follows:
1. The present mode indicator light goes off and the selected
mode indicator light blinks.
2. The selected mode indicator light goes off. (The vehicle
height does not change.) The present mode indicator light
comes on again.
Height control "OFF" indicator light: When the ignition
switch is turned on, this light comes on. If it goes out after a few
seconds, the active height control suspension operates
correctly. If you push the height control switch, the active
height control is turned off. The height control "OFF" indicator
light comes on.
In the following cases, there is a problem somewhere in your
active height control suspension. Although there is no problem
to continue normal driving, have the active height control
suspension checked by your Lexus dealer as soon as
possible.
D The height control "OFF" indicator light does not come on
when the ignition switch is turned on.
D The height control "OFF" indicator light blinks.