change LEXUS LX470 2006 Workshop Manual

AUDIO
250
22sv02
Low quality CDs
22sv03
Labeled CDs
NOTICE
Do not use special shaped, transparent/translucent, low
quality or labeled CDs such as those shown in the
illustrations. The use of such CDs may damage the
player or changer, or it may be impossible to eject the
CD.

STARTING AND DRIVING
255

To ensure that the threeway catalytic converter and
the entire emission control system operate properly,
your vehicle must receive the periodic inspections
required by the Lexus Maintenance Schedule. For
scheduled maintenance information, refer to the
“Owner’s Manual Supplement / Scheduled
Maintenance”.
ENGINE EXHAUST CAUTION
CAUTION
Avoid inhaling the engine exhaust. It contains
carbon monoxide, which is a colorless and odorless
gas. It can cause unconsciousness or even death.
 Make sure the exhaust system has no holes or loose
connections. The system should be checked from
time to time. If you hit something, or notice a change
in the sound of the exhaust, have the system checked
immediately.
 Do not run the engine in a garage or enclosed area
except for the time needed to drive the vehicle in or
out. The exhaust gases cannot escape, making this
a particularly dangerous situation.
 Do not remain for a long time in a parked vehicle with
the engine running. If it is unavoidable, however, do
so only in an unconfined area and adjust the heating
or cooling system to force outside air into the vehicle.
Keep the back door closed while driving. An open or
unsealed back door may cause exhaust gases to be
drawn into the vehicle.
 To allow proper operation of your vehicle’s
ventilation system, keep the inlet grilles in front of the
windshield clear of snow, leaves, or other
obstructions.
 If you smell exhaust fumes in the vehicle, open the
windows and close the back door to ensure plenty of
fresh air enters the vehicle. If you can smell exhaust
fumes even though there are no other vehicles in the
surrounding area, have your vehicle checked by your
Lexus dealer. Continued inhalation of exhaust fumes
can lead to death by gas poisoning.

STARTING AND DRIVING
263
(b) Using engine braking
31X009f
To use the braking power of the engine, downshift the
transmission in the way described below:
1 Shift into the “4” position. The transmission will downshift
to fourth gear and engine braking will be enabled.
When the cruise control is being used, even if you
downshift from “D” to “4”, engine braking will not be
enabled because the cruise control is not cancelled. If
you need to decrease the vehicle speed, see page 278.
2 Shift into the “3” position. The transmission will downshift
to third gear when the vehicle speed is or becomes lower
than the speed listed below and stronger engine braking
will be enabled.
Transfer “H” 129 km/h (80 mph)
“L” 51 km/h (32 mph)
3Shift into the “2” position. The transmission will downshift
to second gear when the vehicle speed is or becomes
lower than the speed listed below and more powerful
engine braking than that of “3” position will be enabled.
Transfer “H” 88 km/h (55 mph) “L” 35 km/h (22 mph)
4Shift into the “L” position. The transmission will downshift
to first gear when the vehicle speed is or becomes lower
than the speed listed below and maximum engine braking
will be enabled.
Transfer “H” 37 km/h (23 mph) “L” 14 km/h (9 mph)
CAUTION
Be careful when downshifting on a slippery surface.
The abrupt change in engine speed could cause the
vehicle to skid or spin.

STARTING AND DRIVING
269
REAR VIEW MONITOR SYSTEM
The rear view monitor system assists the driver by
displaying an image of the rear of the vehicle while
backing up. The displayed image on the screen is a
horizontally reversed mirror image of the inside rear view
mirror.
To display the rear view image on the screen, place the
selector lever in the “R” position when the ignition switch
is in the “ON” position.
If you move the selector lever out of the “R” position, the screen
returns to the previous screen. Operating another function of
the navigation system will display another screen.
The rear view monitor system is a supplemental device
intended to assist back up. When backing up, be sure to check
behind and all around the vehicle visually.
CAUTION
 Never depend on the rear view monitor system
entirely when backing up. Always make sure your
intended path is clear.
Use caution just as you would when backing up any
vehicle.
Never back up while looking only at the screen. The
image on the screen is different from actual
conditions. Depicted distances between objects and
flat surfaces will differ from actual distances. If you
back up while looking only at the screen, you may hit
a vehicle, a person or an object. When backing up, be
sure to check behind and all around the vehicle
visually and with mirrors before proceeding.
 Do not use the system when the back door is not
completely closed.
 If the back of the vehicle is hit, the position and
mounting angle of the camera may change. Be sure
to have the camera’s position and mounting angle
checked at your Lexus dealer.
 If the temperature changes rapidly , such as when hot
water is poured on the vehicle in cold weather, the
system may not operate normally.
 If the camera lens becomes dirty, it cannot transmit
a clear image. If water droplets, snow, or mud adhere
to the lens, rinse with water and wipe with a soft cloth.
If the lens is extremely dirty, wash it with a mild
cleanser and rinse.
 Use your own eyes to confirm the vehicle’s
surroundings, as the displayed image may become
faint or dark, and mov ing images will be distorted or
not entirely visible when outside temperature is low.
When backing up, be sure to check behind and all
around the vehicle visually and with mirror before
proceeding.

STARTING AND DRIVING
275
31x501a
If this warning light comes on, the bulb of the
nearinfrared floodlight (night view projector) has blown
out. Have the bulb replaced at your Lexus dealer.
CRUISE CONTROL
The cruise control is designed to maintain a set cruising
speed without requiring the driver to operate the
accelerator. Cruising speed can be set to any speed
above 40 km/h (25 mph).
Within the limits of the engine’s capabilities, cruising speed can
be maintained up or down grades. However, changes in
vehicle speed may occur on steeper grades.
When the cruise control is on, the driving pattern of the
automatic transmission is fixed in the normal position,
regardless of the position of the driving pattern selector switch.
CAUTION
To help maintain maximum control of your vehicle,
do not use the cruise control when driving in heavy
or varying traffic, or on slippery (rainy, icy or
snowcovered) or winding roads.
 Avoid vehicle speed increases when driving
downhill. If the vehicle speed is too fast in relation to
the cruise control set speed, cancel the cruise
control then downshift the transmission to use
engine braking to slow down.

STARTING AND DRIVING
279
ACTIVE HEIGHT CONTROLSUSPENSION (AHC)
This active height control suspension controls the vehicle
height depending on the vehicle driving condition. Select
your desired height among the “HI” (high), “N” (normal)
and “LO” (low) modes with the height select switch.
31X600
(a) Vehicle height modes
 “HI” (high) mode
The vehicle height is about 40 mm (1.6 in.) higher at front
and about 50 mm (2.0 in.) higher at rear than the normal
mode height.
This mode is suitable when driving on bumpy roads and
through water.
This mode is available when the vehicle speed is under about
30 km/h (19 mph).
CAUTION
The “HI” (high) or “Extra high” mode should be used for
severe offroad driving condition only. Because the
vehicle’s center of gravity is higher in this setting, the
vehicle may become unstable when turning abruptly,
resulting in an accident.
When the four −wheel drive control lever is put at “L”, this mode
may change to the extra high mode automatically in
accordance with the driving condition.
When the vehicle exceeds the specified vehicle speed, the
vehicle height changes to the following:
With the fourwheel drive control lever at “H” and at the
vehicle speed of 30 km/h (19 mph) or over, the normal mode
is automatically selected.
With the fourwheel drive control lever at “L” and at the
vehicle speed of 50 km/h (30 mph) or over, the vehicle
height becomes automatically about 25 mm (1.0 in.) higher
than the normal mode height. If the vehicle speed is lowered
about 20 km/h (12 mph) or le ss after that, the high mode
automatically resumes.
Extra high mode
This mode is automatically selected from the high mode
with the fourwheel drive control lever placed in “L”
position depending on the vehicle driving condition.
If the vehicle becomes stuck, the vehicle height rises
automatically to the extra high mode (slightly higher or at about
70 mm (2.8 in.) higher than normal mode height).

STARTING AND DRIVING
280In the following cases, the extra high mode changes to the high
mode automatically:

When your vehicle is no longer stuck.
 When the four −wheel drive control lever is put in a position
other than “L”.
When you push the height select switch on the “
” side
in the extra high mode, the normal mode is selected.
Since the extra high mode is automatically selected, you
cannot select this mode on purpose with the height select
switch.
 “N” (normal) mode
The vehicle height in this mode is standard.
This mode is suitable for ordinary driving.
 “LO” (low) mode
The vehicle height is about 50 mm (2.0 in.) lower at front
and about 40 mm (1.6 in.) lower at rear than the normal
mode height.
This mode allows you easy access to the vehicle (getting in
and out) and easy loading and unloading operation.
This mode is available when the vehicle is stopped. When you
start the vehicle, the normal mode is automatically selected.
NOTICE
The normal mode is automatically selected when the
vehicle begins to move in the low mode. So be careful
when you drive in any place where the overhead height
is limited.
(b) Automatic leveling function
Regardless of the number of occupants or the luggage
loading condition, the vehicle height is always
automatically adjusted to a fixed height in any mode.
However, the vehicle height cannot be raised if the vehicle load
exceeds the limits. (See page 281.)
(c) Vehicle height mode changing condition
To change the vehicle height, it is necessary to meet the
following 3 conditions.
 The engine should be running.
 All the side doors and back door should be closed.
 The height control “OFF” indicator light should go off.
When selecting a mode with the four −wheel drive control lever
at “H”, there is a vehicle speed limit. Refer to the following
table.

STARTING AND DRIVING
281
Yes= The mode can be selected.
No = The mode cannot be selected.
Low
modeNormal modeHigh
mode
At vehicle
stoppageYe sYe sYe s
Under about 30
km/h (19 mph)NoYe sYe s
About 30 km/h
(19 mph) or overNoYe sNo
In the following cases the active height control
suspension does not operate even if the above conditions
are all met.
 The brake pedal has been depressed for longer than about
5 seconds with the vehicle stopped.
 The suspension fluid temperature is lower than −30 C
(−22 F). If the engine is warmed up, the suspension fluid
temperature will be raised as the inside of the engine
compartment becomes warmer. Then the active height
control suspension becomes operable.
 Driving on bumpy roads, which may cause the suspension
to fully elongate.
 The steering wheel is operated abruptly more than 3/4 turn
with center differential lock system activated.
(d) Vehicle height adjustment
31X049b
 1
Higher 2Lower
To change the mode, push the height select switch on
either side of “ ” and “
”.
The height control indicator light indicates which mode is
selected. (See page 284.)
NOTICE
 If you change the vehicle height frequently, the pump
may overheat. To prevent this, the active height
control suspension should be stopped temporarily
for a minute between selections. Operate it again.

STARTING AND DRIVING
282
Before you lower the vehicle height with the height
select switch, check under the vehicle to make sure
that nothing to damage the vehicle or no one to be
injured is there and the underbody of the vehicle
does not touch the ground.
 After unloading, the height of a vehicl e equipped with
the active height control suspension becomes
slightly higher than the normal vehicle height. Take
sufficient care where the overhead height is
restricted.
The vehicle height cannot be raised if the vehicle load
exceeds the following limits:
 Up to 4 occupants* plus about 300 kg (661 lb.) in the normal
mode
 Up to 4 occupants* plus about 170 kg (375 lb.) in the high
mode
*About 68 kg (150 lb.) for a person
If the above load capacity is exceeded, the desired vehicle
height may not be obtained even if the height select switch is
pushed. (If the vehicle height cannot be raised in the normal
mode and the height control indicator indicates “LO”, this is
because the vehicle is loaded too heavily. Under these
conditions, drive your vehicle with due care.)
If the vehicle height cannot be raised even after unloading,
push the height select switch on the “
” side and then on the
“ ” side. If this does not work, turn off the ignition once and
then turn on. Operate the select switch again. If the vehicle height is adjusted on the slope, or with the
selector lever in a position other than “P” or “N” while the\
vehicle is stopped, you may h
ear a sound caused by the
expansion and contraction of the propeller shaft.
 Selecting the high mode:
Push the height select switch on the “ ” side when the vehicle
speed is under about 30 km/h (19 mph).
To change the normal mode to high, push the switch once.
To change the low mode to high, push the switch twice. It
takes about 30 seconds until the low mode changes to the high
mode.
 Selecting the normal mode:
To change the high mode to normal, push the height select
switch on the “
” side once.
To change the low mode to normal, push the height select
switch on the “ ” side once.
 Selecting the low mode:
Push the height select switch on the “
” side while the vehicle
is stopped.
To change the high mode to low, push the switch twice.
To change the normal mode to low, push the switch once.

STARTING AND DRIVING
284
CAUTION
If you drive through deep water over about 500 mm (20
in.) in depth, put the vehicle height in the “HI” (High)
mode with the height select switch and then turn off the
active height control suspension by pushing the height
control switch. Drive your vehicle at 30 km/h (19 mph)
or lower speed.
NOTICE
 When jacking up or installing tire chains, be sure to
turn off the active height control suspension and
stop the engine. Otherwise, the vehicle height may
change because of the automatic leveling function,
resulting in an accident.
 If your vehicle must be towed, put the vehicle height
in the normal mode and turn off the active height
control suspension. Otherwise, the vehicle height
may change because of the automatic leveling
function, resulting in an accident.
 If your vehicle gets ditched, turn off the active height
control suspension with the height control switch.
Otherwise, the vehicle height may change because of
the automatic leveling function, resulting in an
accident.
Even after the active height control suspension is turned
off with the height control switch, if the vehicle speed
exceeds 30 km (19 mph), the active height control
automatically selects the normal mode.
(f) Height control indicator lights
31X050d
 1 Height control indicator lights
2Height control “OFF” indicator light
When the ignition switch is turned on, all the indicator
lights come on. The indicator light showing the present
mode only remains on and all other lights go off after a few
seconds. This means the system operates correctly.
If you change the vehicle height mode, the indicator lights
change as follows: