ECU Lexus GX470 2006 Basic Functions In Frequent Use / LEXUS 2006 GX470 (OM60B99U) Workshop Manual

OCCUPANT RESTRAINT SYSTEMS
197
CAUTION
When using the lower anchorages for the child
restraint system, be sure that there are no irregular
objects around the anchorages or that the seat belt is
not caught.
 Push and pull the child restraint system in different
directions to be sure it is secure. Follow all the
installation instructions provided by its
manufacturer.
 Do not install a child restraint system on the second
seat if it interferes with the lock mechanism of the
front seats. This can cause death or serious injury to
the child and front passenger in case of sudden
braking or a collision.
 When using the left side lower anchorages for the
child restraint system, do not sit in the center seat.
The performance of the center seat belt cannot be
brought out sufficiently because the belt may be
highpositioned or the seat belt may be loosefitting,
posing the risk of serious injury in the case of
collision.

STEERING WHEEL AND MIRRORS
210
Drive the vehicle slowly (at 8 km/h [5 mph] or lower) in a circle
until the direction is displayed. If there is not enough space to
drive in a circle, drive around the block until the direction is
displayed.
After driving in 1 to 3 circles in the above method, calibration
is complete with the direction shown on the display. Perform
circling calibration just after you have purchased
your Lexus. And then always perform circling calibration
after the battery has been removed, replaced or
disconnected.
 Do not perform circling calibration of the compass in a place
where the earth’s magnetic field is subject to interference by
artificial magnetic fields (underground parking, under a steel
tower, between buildings, roof parking, near a crossing,
near a large vehicle, etc.).
 During calibration, do not operate electric systems (moon
roof, power windows, etc.) as they may interfere with the
calibration.
CAUTION
When doing the circling calibration, be sure to secure
a wide space, and watch out for people and vehicles
in the neighborhood. Do not violate any local traffic
rules while performing circling calibration.
 Do not adjust the display while the vehicle is moving.
Be sure to adjust the display only when the vehicle is
stopped.

AUDIO
268
Replacing remote control battery
For replacement, use a CR2025 lithium battery or equivalent.
CAUTION
Special care should be taken that small children do not
swallow the removed battery or components.
NOTICE
When replacing the battery, be careful not to lose the
components.
 Replace only with the same or equivalent type of
battery recommended by a Lexus dealer.
 Dispose of used batteries according to the local laws.1. Pull the case out while pushing the lock release button to the
side.
2. Remove the discharged battery.
3. Put in a new battery with the positive (+) side up.
4. Put in the case securely.

AUDIO
269
NOTICE
Make sure that the positive side of the remote control
battery is facing correctly.
 Do not replace the battery with wet hands. Water may
cause rust.
 Do not touch or move any components inside of the
remote control, or it may interfere with proper
operation.
 Be careful not to bend the electrode of the remote
control battery insertion and that dust or oil does not
adhere to the transmitter case.
 Close the battery case securely.
After replacing the battery, check that the remote control
operates properly. If the remote control still does not operate
properly, contact your Lexus dealer.
Headphone jacks
To use the jack, push the lid.
You can enjoy the rear seat audio system with commercial
headphone.
To use the headphones, connect them to the jack.
The key must be in the “ACC” or “ON” position.

AUDIO
288
1. Pull the case out while pushing the lock release button to the
side.
2. Remove the discharged battery.
3. Put in a new battery with the positive (+) side up.
4. Put it in the case securely.
NOTICE
 Be sure that the positive side of the remote control
battery is facing correctly.
 Do not replace the battery with wet hands. Water may
cause rust.
 Do not touch or move any components inside of the
remote control, or it may interfere with proper
operation.
 Be careful not to bend the electrode of the remote
control battery insertion and that dust or oil does not
adhere to the transmitter case.
 Close the battery case securely.
After replacing the battery, check that the remote control
operates properly. If the remote control still does not operate
properly, contact your Lexus dealer.

STARTING AND DRIVING
361

The area covered by the camera is limited. Objects
which are close to either corner of the bumper or under
the bumper cannot be seen on the screen.
 The area displayed on the screen may vary according
to vehicle orientation or road conditions.
If the above screen appears on the display, the back door is
open. When backing up the vehicle, make sure the back door
is securely closed. THE REAR VIEW MONITOR SYSTEM CAMERA
The rear view monitor system camera is located on the back
door as shown in the illustration. The camera uses a special
lens. The distance of the image that appears on the screen
differs from the actual distance.
In the following cases, it may become difficult to
see the images
on the screen, even when the system is functioning.
 In the dark (for example, at night)
 When the temperature near the lens is extremely high or low
 When water droplets are adhering to the camera, or when
humidity is high (for example, when it rains)
 When foreign matter (for example, snow or mud) adheres
to the camera lens
 When the sun or the beam of headlights is shining directly
into the camera lens

STARTING AND DRIVING
362
Check surroundings for safety.
If a bright light (for example, sunlight reflected off the vehicle
body) is picked up by the camera, the smear effect* peculiar to
the camera may occur.
*: Smear effect — A phenomenon that occurs when a bright
light (for example, sunlight reflected off the vehicle body) is
picked up by the camera; when transmitted by the camera, the
light source appears to have a vertical streak above and below
it.
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.
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.

DRIVING TIPS
401
CAUTION
Before driving off, make sure the parking brake is
fully released and that the parking brake reminder
light is off.
 Do not leave your vehicle unattended while the
engine is running.
 Do not rest your foot on the brake pedal while driving.
It can cause dangerous overheating, needless wear,
and poor fuel economy.
 To drive down a long or steep hill, reduce your speed
and downshift. Remember, if you ride the brakes
excessively, they may overheat and not work
properly. See page 352.
 Be careful when accelerating, upshifting,
downshifting or braking on a slippery surface. The
abrupt change in engine speed, such as sudden
acceleration or engine braking, could cause the
vehicle to skid or spin.
 Do not drive in excess of the speed limit. Even if the
legal speed limit permits it, do not drive over 140 km/h
(85 mph) unless your vehicle has highspeed
capability tires. Driving over 140 km/h (85 mph) may
result in tire failure, loss of control and possible
injury. Be sure to consult a tire dealer to determine
whether the tires on your vehicle are highspeed
capability tires or not before driving at such speeds.
 Do not continue normal driving when the brakes are
wet. If they are wet, your vehicle will require a longer
stopping distance, and it may pull to one side when
the brakes are applied. Also, the parking brake will
not hold the vehicle securely.
 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 active 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.

DRIVING TIPS
409
Hitches
If you wish to install a trailer hitch, you should consult with
your Lexus dealer.
 Use only a hitch recommended by the hitch manufacture
and the one which conforms to the total trailer weight
requirement.
 If you wish to install an aftermarket hitch, the hitch must be
bolted securely to the vehicle frame and installed according
to the hitch manufactures’ instructions.
 The hitch ball and king pin should have a light coat of grease.
 Lexus recommends the ball mount assembly be removed
when not towing to prevent injury and to prevent damage in
the event of a rear end collision. After removing the ball
mount assembly, install the grommet to the hitch to prevent
entry of dirt and mud.NOTICE
Do not use axlemounted hitches as they can cause
damage to the axle housing, wheel bearings, wheels or
tires. Also, never install a hitch which may interfere with
the normal function of an Energy Absorbing Bumper.
Trailer ball
Follow these easy steps to properly determine the correct
trailer ball for your application:
1. Determine the correct trailer ball size for the trailer coupler.
Most couplers are stamped with the required trailer ball size.
The sizes you’ll most likely find stamped on the coupler are:
Trailer Class
Typical Trailer Ball Size
III 2 in.
II 2 in.
I 1 7/8 in.
2. Select the appropriate trailer ball to match or exceed the
gross trailer weight rating of the trailer. The trailer ball load
rating should be printed on the top of the ball.

DRIVING TIPS
411
32PY007
1Coupler2Trailer ball
Brakes and safety chains
Lexus recommends trailers with brakes that conform to
any applicable federal and state/provincial regulations.
 A safety chain must always be used between the towing
vehicle and the trailer. Leave sufficient slack in the
chain for turns. The chain should cross under the
trailer tongue to prevent the tongue from dropping to
the ground in case it becomes damaged or separated.
For correct safety chain procedures, consult your
Lexus dealer.
CAUTION
If the total trailer weight exceeds 453 kg (1000 lb.),
trailer brakes are required.
 Never tap into your vehicle’s hydraulic system as it
will lower its braking effectiveness.
 Never tow a trailer without using a safety chain
securely attached to both the trailer and the vehicle.
If damage occurs to the coupling unit or hitch ball,
there is possible danger of the trailer wandering over
into another lane.