2003 Lexus GX470 ECU

COMFORT ADJUSTMENT
164
 Align both third seatbacks at the same angle
 When installing a child restraint system in the third
center position, align both seatbacks at the same
angle. Otherwise, the child restraint system cannot
be securely restrained and this may cause death or
serious injuries in a collision.
1. Sit the child on a booster seat. Run the lap and shoulder
belt through or around the booster seat and across the child
following the instructions provided by its manufacturer and
insert the tab into the buckle.
Make sure the shoulder belt is correctly across the child’s
shoulder and that the lap belt is positioned as low as possible
on child’s hips. See “Seat belts” on page 123 for details.
CAUTION
 Always make sure the shoulder belt is positioned
across the center of child’ s shoulder. The belt should
be kept away from child’s neck, but not falling off
child’s shoulder. Failure to do so could reduce the
amount of protection in an accident and cause
serious injuries in a collision.

COMFORT ADJUSTMENT
167
1. Remove the head restraint.
2. Open the cover of the anchor bracket.
3. Fix the child restraint system with the seat belt.
4. Latch the hook onto the anchor bracket and tighten the
top strap.
For instructions to install the child restraint system, see “Child
restraint system” on page 151.
CAUTION
 Make sure the top strap is securely latched, and
check that the child restraint system is securely by
pushing and pulling it in different directions.
 Follow all the installation instructions provided by its
manufacturer.

COMFORT ADJUSTMENT
170
16PY109
 Type B Type A
3. Latch the hooks of lower straps onto the anchorages
and tighten the lower straps.
Type B
3. Latch the buckles onto the anchorages.
If your child restraint system has a top strap, it should be
anchored.
(For the installation of the top strap, see “Using a top
strap” on page 166.)
For the installation details, refer to the instruction manual
equipped with each product.
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.

THEFT DETERRENT
175
THEFT DETERRENT SYSTEM
To deter theft of the vehicle, this system is designed to
sound an alarm if any of the doors or hood is forcibly
unlocked or the battery terminal is disconnected and then
reconnected while the vehicle is locked.
The alarm blows the horn intermittently and flashes the
headlights, tail lights and turn signal lights.
Further more when the center interior light switch and personal
light switch are in the “DOOR” position, the center interior light
and personal lights turn on.
 Security indicator light
Setting the system
1. Turn the ignition key to the “LOCK” position and
remove it.
The engine immobiliser system causes the indicator light to
flash.
2. Close and lock all the doors and hood using an ignition
key or wireless remote control.
If you lock them with wireless remote control, the turn signals
flash once.
The flashing indicator light will remain on when all the doors
and hood are closed and locked.
3. After 30 seconds, the indicator starts flashing and the
system is set.

AUDIO
231
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.Put in the case securely.
NOTICE
Make sure that the positive side of the controller
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
controller, or it may interfere with proper operation.
 Be careful not to bend the electrode of the controller
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 controller operates
properly. If the controller still does not operate properly , contact
your Lexus dealer.

AUDIO
247
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.Put it in the case securely.
NOTICE
Be sure that the positive side of the controller 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
controller, or it may interfere with proper operation.
 Be careful not to bend the electrode of the controller
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 controller operates
properly. If the controller still does not operate properly , contact
your Lexus dealer.

DRIVING TIPS
342
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.OFFROAD DRIVING PRECAUTIONS
When driving your vehicle off −road, please observe the
following precautions to ensure your driving enjoyment and to
help prevent the closure of areas to off −road vehicles.
a. Drive your vehicle only in areas where off −road vehicles are
permitted to travel.
b. Respect private property. Get owner’s permission before
entering private property.
c. Do not enter areas that are closed. Honor gates, barriers
and signs that restrict travel.
d. Stay on established roads. When conditions are wet,
driving techniques should be changed or travel delayed to
prevent damage to roads.
For owners in U.S. mainland, Hawaii and Puerto Rico:
To obtain additional information pertaining to driving your
vehicle off −road, consult the following organizations.
 State and Local Parks and Recreation Departments
 State Motor Vehicle Bureau
 Recreational Vehicle Clubs
 U.S. Forest Service and Bureau of Land Management

Tongue load
Total trailer weight x 100 = 10%
DRIVING TIPS
349

Total trailer weight  Tongue load
 The trailer cargo load should be distributed so that
the tongue load is 10% of the total trailer weight, not
exceeding the maximum of the following.
For weight carrying hitch 227 kg (500 lb.)
Also for weight distributing hitch 294 kg (650 lb.)
 Never load the trailer with more weight in the back
than in the front. About 60 % of the trailer load should
be in the front half of the trailer and the remaining 40%
in the rear.
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.
 According to the hitch receiver type, the maximum gross
trailer weight and hitch that can be used differs. Refer to the
illustrations to confirm the hitch receiver type for your
vehicle.
 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.