ECU Lexus GX470 2003 Basic Functions / LEXUS 2003 GX470 (OM60A45U) Workshop Manual

IN CASE OF AN EMERGENCY
366To prepare yourself for an emergency, you should familiarize
yourself
with the use of the jack and each tool, and their storage
locations.
When storing the jack, put it into place and secure to prevent
it from flying forward during a collision or sudden braking.
 1 Jack handle extension with bolt

2 Jack handle extension without bolt

3 Jack handle
To remove the spare tire under the luggage compartment:
Put a jack handle and jack handle extensions together as
shown in the illustration.
CAUTION
Make sure they are securely fixed with the screws.
When connecting the jack handle extensions, use a
Phillips −head screwdriver or jack handle to tighten the bolts on
the joints as shown in the illustration. When connecting the
jack handle with extension, tighten the bolt on the joint
securely. Make sure the hollow meets the bolt on every joint
when you tighten the bolts.
NOTICE
Tighten all the joints securely. Otherwise, the extension
may come off and it may damage the paint or vehicle
body.

IN CASE OF AN EMERGENCY
367
40PY041
 1 Lower2 Raise3 Cloth To remove the spare tire:
1. Open the back door and remove the spare tire carrier lid
using a flat−
bladed screwdriver.
2. Insert the end of the jack handle extension into the lowering
screw and put a cloth between the jack handle extension and
rear bumper for protecting the bumper surface.
3. Turn the jack handle counterclockwise with the handle,
making sure the handle remains firmly fitted onto the jack
handle extension.
4. After the tire is lowered completely to the ground, remove
the holding bracket.
When storing the spare tire, put it in place with the outer side
of the wheel facing up. Then secure the tire, taking care that
the tire goes straight up without catching on any other part, to
prevent it from flying forward during a collision or sudden
braking.
NOTICE
Tighten the spare tire clamp bolt to hold the spare wheel
carrier by the hook securely.

IN CASE OF AN EMERGENCY
370
 1 Jack handle end

2 Jack handle extension with bolt

3 Jack handle extension without bolt

4 Jack handle
Put a jack handle, jack handle extensions and jack handle end
together as shown in the illustration.
CAUTION
Make sure they are securely fixed with the screws.
When connecting a jack handle extension with a jack handle
end, use a Phillips −head screwdriver or jack handle to tighten
the bolts on the joints as shown in the illustration. When
connecting the jack handle with extension, tighten the bolt on
the jack handle securely. Make sure the hollow meets the bolt
on any joint when you tighten the bolts.
NOTICE
Tighten all the joints securely. Otherwise, the extension
may come off and it may damage the paint or vehicle
body.

IN CASE OF AN EMERGENCY
373
9. Lower the vehicle completely and tighten the wheel
nuts.
To lower the vehicle, turn the jack handle extension
counterclockwise with the handle, making sure the handle
remains firmly fitted onto the jack handle extension.
Use only the wheel nut wrench to tighten the nuts. Do not use
other tools or any additional leverage other than your hands,
such as a hammer, pipe or your foot. Make sure the wrench
is securely engaged over the nut.
Tighten each nut a little at a time in the order shown. Repeat
the process until all the nuts are tight.
CAUTION
When lowering the vehicle, make sure all portions of
your body and all other persons around will not be
injured as the vehicle is lowered to the ground.
 Have the wheel nuts tightened with torque wrench to
112 N·m (11.5 kgf·m, 83 ft·lbf), as soon as possible
after changing wheels. Otherwise, the nuts may
loosen and the wheels may fall off, which could cause
a serious accident.

IN CASE OF AN EMERGENCY
374
10. Reinstall the wheel ornament.
Put the wheel ornament into position and then tap it firmly with
the side or heel of your hand to snap it into place.
CAUTION
Take due care in handling the ornament to avoid
unexpected personal injury.
11. After changing the wheel, check the air pressure of the
replaced tire. Stow all the tools, jack and flat tire securely.
If the pressure of the replaced tire is low, drive slowly to the
nearest service station and fill to the correct pressure.
Do not forget to reinstall the tire valve cap as dirt and moisture
could get into the valve core and possible cause air leakage.
If the cap is missing, put a new one on as soon as possible.
This is the same procedure for changing or rotating your tires.
CAUTION
Before driving, make sure all the tools, jack and flat tire
are securely in place in their storage location to reduce
the possibility of personal injury during a collision or
sudden braking.

IN CASE OF AN EMERGENCY
380
(d) Emergency towing
If towing is necessary, we recommend you to have it done
by your Lexus dealer or a commercial tow truck service.
If towing service is not available in an emergency, your
vehicle may be temporarily towed by a cable or chain
secured to the emergency towing eyelet. Use extreme
caution when towing the vehicle.
NOTICE
Only use specified towing eyelet; otherwise your
vehicle may be damaged.
A driver must be in the vehicle to steer it and operate the
brakes. Towing in this manner may be done only on hard
−surfaced
roads for a short distance and at low speeds. Also, the wheels,
axles, drive train, steering and brakes must all be in good
condition.
CAUTION
Use extreme caution when towing the vehicle. Avoid
sudden starts or erratic driving maneuvers which would
place excessive stress on the emergency towing eyelet
and towing cable or chain. The eyelet and towing cable
or chain may break and cause serious injury or damage.
NOTICE
Use only a cable or chain specifically intended for use
in towing vehicles. Securely fasten the cable or chain
to the towing eyelet provided.
Before towing, check that the center differential is unlocked.
(The indicator light must be off with the ignition on.) Release
the parking brake and put the transmission in “N”. The ignition
key must be in “ACC” (engine off) or “ON” (engine running).
CAUTION
If the engine is not running, the power assist for the
brakes and steering will not work so steering and
braking will be much harder than usual.

IN CASE OF AN EMERGENCY
381
Emergency towing hook precautions:

Before emergency towing, check that the eyelet is not
broken or damaged and that the installation bolts are not
loose.
 Fasten the towing cable or chain securely to the hook.
 Do not jerk the eyelet. Apply steady and even force.
 To avoid damaging the eyelet, do not pull from the side or at
a vertical angle. Always pull straight ahead.
CAUTION
If the emergency towing eyelet is used to get out when
your vehicle becomes stuck in the mud, sand or other
condition from which the vehicle cannot be driven out
under its own power, make sure to observe the
precautions mentioned below. Otherwise, excessive
stress will be put on the eyelet and the towing cable or
chain may break, causing serious injury or damage.
If the towing vehicle can hardly move, do not forcibly
continue the towing. Contact your Lexus dealer or a
commercial tow truck service for assistance.
 Tow the vehicle as straight ahead as possible.
 Keep away from the vehicle during towing.
Tips for towing a stuck vehicle:
The following methods are effective to use when your
vehicle is stuck in the mud, sand or other condition from
which the vehicle cannot be driven out under its own
power. Use extreme caution when towing the vehicle. In
addition, keep away from the vehicles and towing cable or
chain when towing.
 Remove the sand and soil in the front and the back of the
tires.
 Place stones or wood under the tires.

IN CASE OF AN EMERGENCY
383
LEXUS LINK SYSTEM
The Lexus Link System is an invehicle communications
service that provides you with enhanced safety, security
and convenience. With an active subscription you can
push the “SER VICES” button for operator assistance or in
an emergency situation such as a vehicle accident (in
which the airbag was activated), you will automatically be
connected to the Lexus Link Call Center which will assist
you and/or send help 24 hours a day, 7 days a week.
The Lexus Link System can also record your voice or your
conversation with the Lexus Link Call Center Advisor. The Lexus Link System is a subscription
−based service. To
obtain any of the Lexus Link services you must have enrolled
with the Lexus Link Call Center and have an active
subscription. It is important to be aware that an active
subscription is required to re ceive safety and security services.
To learn more about your subscription status or how to renew
or extend your subscription, please push the “SERVICES”
button and speak to the Lexus Link Advisor, or you may dial toll
free 1 −800−25 Lexus (Toll −Free) (1−800−255−3987) and
select the option for Lexus Link. If you are not enrolled, you will
hear the explanation about Lexus Link System. The actual
message is shown on “Audible voice prompts” on page 390.
If you push the “SERVICES” button again, the services
enrollment call will be announced. To cancel the enrollment
call, push the “SERVICES” button one more time.
NOTICE
This system is only operational in GPS (Global
Positioning System) and analog cellular coverage
areas. Services may not be available in an area where
the GPS and analog cellular phone signals cannot be
received.

IN CASE OF AN EMERGENCY
384When the ignition is turned to the “ON” position, “The Lexus
Link System is active” is announced to inform you that the
system is on.
If your Lexus Link subscription expires, you will
hear “The Lexus Link System is not active. To activate your
Lexus Link System, press the “SERVICES” button now”. To
learn more about your subscription status or how to renew or
extend your subscription, please push the “SERVICES” button
to speak to a Lexus Link Advisor, or you may dial toll free
1−800−25 Lexus (Toll −Free) (1−800−255−3987) and select
the option for Lexus Link. If problems are detected in the Lexus
Link System, you will hear “A Lexus Link System error has
been detected. Please contact your Lexus dealer.” If you hear
this message, take your vehicle to your Lexus dealer.
In some cases, even if your subscription has expired, you may
hear “The Lexus Link System is active”. This is due to the time
delay required to process the deactivation of your Lexus Link
System. During this period, when you push the “SERVICES”
button, your call will be forwarded to enrollment. Once the
deactivation process has been completed, you will hear “The
Lexus Link System is not active”.
NOTICE
The voice prompt messages are the primary means to
let you know the status of your subscription. It is
important to be aware that an active subscription is
required to receive safety and security services. If these
voice prompt messages are disabled and you desire to
have them reactivated, contact your Lexus dealer.
When you push the “ − VOL +” button on the “−” side
immediately followed by the “PLAY” button, you can hear an
explanation about the Lexus Link System. However, this
function is not available when you are recording or hearing a
playback. See “Audible voice prompts” on page 390 for a
written version of this recorder message.
The basic subscriber service package is available free of
charge for the first year.
NOTICE
Do not remove the Lexus Link fuse and wiring harness
with the ignition on, or an emergency call will be placed
to the Lexus Link Call Center.

IN CASE OF AN EMERGENCY
388
Door Locking/Unlocking by Lexus Link
System
The Lexus Link System will allow your vehicle to be locked
and unlocked remotely.
If you find that your vehicle has not been locked, call the Lexus
Link Call Center 1−800−25−LEXUS (Toll−Free)
(1−800−255−3987), the Lexus Link Advisor can assist in
locking your vehicle.
In case you are locked out, call the Lexus Link Call Center
1−800−25 Lexus (Toll −Free) (1− 800−255−3987), a Lexus Link
Advisor can assist in unlocking your vehicle.
NOTICE
You must provide the Lexus Link operator with your
Lexus Link PIN (Personal Identification Number) or
personal security word, before they lock/unlock your
vehicle. However, the Lexus Link System will not be
able to lock or unlock your vehicle if it has been parked
for 48 hours or more after the ignition is turned off.
Upon subscription expiration, all Lexus Link services
(i.e. automatic notification, emergency call functions,
service call functions, door locking/unlocking function)
are deactivated.
Memo record
 1 “REC” button 2 “PLAY” button 3 “ VOL +” button
During a service call, you can record a conversation with the
Lexus Link Call Center Advisor. This function is very
convenient for drivers so they do not have to take notes while
driving.
“REC” button: Push this button to record information or a
conversation with Lexus Link Call Center. To stop recording,
push the button again. Up to 5 minutes of recording time is
available.
When you push the “REC” button, all previous messages are
deleted and the system begins recording your new message.