2008 Lexus GX470 Owner's Manual

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2-4. Using other driving systems
■Cruise control can be set when
●The shift lever is in “D” or “4”.
●Vehicle speed is between approximately 25 mph (40 km/h) and 125 mph
(200 km/h).
■Accelerating
The vehicle can be accelerated normally. After acceleration, the set speed
resumes.
■Automatic cruise control cancelation
The set speed is automatically canceled in any of the following situations.
●Actual vehicle speed falls more than 10 mph (16 km/h) below the preset vehicle
speed
●Actual vehicle speed is below 25 mph (40 km/h)
●VSC is activated
■If the cruise control indicator light flashes
Turn the “ON-OFF” button off once, and then reactivate the system.
If the cruise control speed cannot be set or if the cruise control cancels immediately
after being activated, there may be a malfunction in the cruise control system. Have
the vehicle inspected by your Lexus dealer.

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2
When driving
CAUTION
■To avoid operating the cruise control by mistake
Keep the “ON-OFF” button off when not in use.
■Situations unsuitable for cruise control
Do not use cruise control in any of the following situations.
Doing so may result in control of the vehicle being lost and could cause a serious or
fatal accident.
●In heavy traffic
●On roads with sharp bends
●On slippery roads, such as those covered with rain, ice or snow
●On steep hills
●On winding roads

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2-4. Using other driving systems
Four-wheel drive system
Use the four-wheel drive control lever and center differential lock button
to select following transfer and center differential modes.
Four-wheel drive control lever
“L” (low speed position)
Driving requiring maximum power and traction such as climbing or
descending steep hills, off-road driving and hard pulling in sand or mud.
“N” (neutral position)
No power is delivered to the wheels.
“H” (high speed position)
Normal driving on all types of roads.

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2
When driving
■The four-wheel drive control lever can be operated when
●The engine switch is in the “ON” position,
●The shift lever is in the “N” position, and
●The vehicle is stopped completely.
Center differential lock/unlock buttonUse this button when your vehi-
cle’s wheel gets stuck in a ditch
or when you are driving on a
loose or bumpy surface.

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2-4. Using other driving systems
■The center differential lock/unlock button can be operated when
●The engine switch is in the “ON” position, and
●The four-wheel drive control lever is in the “H” or “L” position.
■Locking/unlocking the center differential
●When the center differential is locked, VSC is automatically turned off. (The
center differential lock and “VSC OFF” indicator lights come on.)
●If the operation is not completed, the center differential lock indicator blinks. If
the indicator light does not go off when unlocking the center differential, drive
straight ahead while accelerating or decelerating, or drive in reverse.
●If center differential lock system operation is not completed within 5 seconds
while the cruise control system is set, cancel the cruise control system.
CAUTION
■While driving
Never move the four-wheel drive control lever if the wheels are slipping. Doing so
may cause an accident resulting in death or serious injury.
NOTICE
■To prevent damage to the center differential
●Unlock the center differential after the wheels are out of the ditch or off the loose
or bumpy surface.
●Do not push the center differential lock/unlock button when the vehicle is corner-
ing or when its wheels are spinning freely off the ground.

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2
When driving
Rear height control air suspension
The rear height control air suspension adjusts the rear vehicle height in
accordance with driving conditions. There are 3 selectable modes, “HI”
(high), “N” (normal), and “LO” (low).
■ Height control switch
“▲ ” (Up) switch
“ ▼ ” (Down) switch
“OFF” switch
Push while the vehicle is
stopped. The “OFF” indicator
light will come on, and the vehi-
cle height will be fixed in the
current mode. Push the switch
again to turn the system back
on.

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2-4. Using other driving systems
■Height control indicator lights
Height control mode indica-
tors
Height control “OFF” indica-
tor

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When driving
Vehicle height modesPress “ ▲” to step up one mode, and “ ▼” to step down one mode.
(e.g. When in the low mode, press “ ▲” once to switch to the normal
mode, and twice to switch to the high mode.)
■ “HI” (high) mode
Rear vehicle height is 1.6 in. (40 mm) higher than the normal mode
height.
This mode is suitable when driving on bumpy roads or through water.
High mode is only available when the vehicle speed is under 19 mph
(30 km/h).
■ “N” (normal) mode
The standard vehicle height. This mode is suitable for ordinary driving.
■ “LO” (low) mode
Rear vehicle height is 0.8 in. (2 0 mm) lower than the normal mode
height.
This mode allows easy access to the vehicle.
Low mode is only available when the vehicle speed is under 7 mph (12
km/h).
Conditions for changing the vehicle height mode
Some modes may not be selectable depending on the vehicle speed.
Refer to the following table.
Low modeNormal modeHigh mode
Under 7 mph (12 km/h)Ye sYe sYe s
Under 19 mph (30 km/h)NoYe sYe s
19 mph (30 km/h) or overNoYe sNo