Lexus LX570 Manual page 249

Automatic change in vehicle height when the four-wheel drive control switch is in
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the "L4" position
If the vehicle speed exceeds 2 mph (3 km/h) while driving on an uneven road with
the four-wheel drive control switch in the "L4" position, high mode is automatically
selected. (On even roads, the height mode will not change.)
Automatic change in vehicle height when in the high mode
■
If the vehicle speed exceeds 18 mph (30 km/h) with the four-wheel drive con-
●
trol switch in the "H4" position, normal mode is automatically selected.
If the vehicle speed exceeds 25 mph (40 km/h) with the four-wheel drive con-
●
trol switch in the "L4" position, the vehicle height is lowered to 1.0 in. (25 mm)
higher than the normal mode height. If the vehicle speed drops to 12 mph (20
km/h) or less, high mode is automatically resumed.
Extra high mode
■
If the vehicle becomes stuck or the Crawl Control system requests the vehicle
height be raised, extra high mode may be automatically selected when the vehicle
height is in high mode with the four-wheel drive control switch in the "L4" position.
The vehicle height is raised to 0.8 in. (20 mm) higher than the high mode height, or
slightly higher.
Extra high mode will change back to high mode when:
●
• The vehicle speed exceeds 6 mph (10 km/h)
• The four-wheel drive control switch is shifted to "H4".
If you pull the height select switch to "" when in extra high mode, normal mode
●
is selected.
Extra high mode cannot be manually selected.
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Turning off the 4-Wheel AHC
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The system will remain off until the height control "OFF" switch is pushed again,
●
even if the "ENGINE START STOP" switch is turned off.
Even if the system is turned off, the system automatically modulated if the vehi-
●
cle speed exceeds following.
• 18 mph (30 km/h) with high or low mode
• 50 mph (80 km/h) with normal mode
LX570_U (OM60F86U)
2-4. Using other driving systems
2
249