ECU Lexus GX470 2004 Engine / LEXUS 2004 GX470 FROM NOV. 2003 THROUGH DEC. 2003 PROD. (OM60A74U) Repair Manual

IN CASE OF AN EMERGENCY
481
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
482
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
489
(d) Emergency towingIf 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.
Never tow a vehicle from the rear with four wheels on
the ground. This may cause serious damage to the
transmission.
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.

IN CASE OF AN EMERGENCY
490
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 Nº. The ignition
key must be in ACCº (engine off) or ONº (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.
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.

IN CASE OF AN EMERGENCY
493
LEXUS LINK SYSTEM
The Lexus Link System is an in-vehicle communications
service that provides you with enhanced safety, security
and convenience. With an active subscription you can
push the SERVICESº 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.
Safety information for the Lexus Link System
Important!: Read this information before using the Lexus
Link System.
EXPOSURE TO RADIO FREQUENCY SIGNALS
The Lexus Link System to be installed in your vehicle a low
power radio transmitter and receiver. When the ignition is
turned to the ONº position, it receives and also sends out radio
frequency (RF) signals.
In August 1996, the Federal Communications Commission
(FCC) adopted RF exposure guidelines with safety levels for
mobile wireless phones. Those guidelines are consistent with
the safety standards previously set by both U.S. and
international standards bodies.
ANSI C95.1 (1992)*
1
NCRP Report 86 (1986)*2
ICNIRP (1996)*3
*1: American National Standards Institute
*2: National Council on Radiation Protection and
Measurements
*
3: International Commission on Non-lonizing Radiation
Protection

IN CASE OF AN EMERGENCY
494Those standards were based on comprehensive and periodic
evaluations of the relevant scientific literature. Over 120
scientists, engineers, and physicians from universities,
government health agencies, and industry reviewed the
available body of research to develop the ANSI Standard
(C95.1).
The design of the Lexus Link System complies with the FCC
guidelines in addition to those standards.
Information for using the Lexus Link System
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 receive safety and security services.

IN CASE OF AN EMERGENCY
496In some cases, even if your subscription has expired, you may
hear The Lexus Link System is activeº. This is due to the time
delay required to process the deactivation of your Lexus Link
System. During this period, when you push the SERVICESº
button, your call will be forwarded to enrollment. Once the
deactivation process has been completed, you will hear The
Lexus Link System is not activeº.
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 re-activated, contact your Lexus dealer.

IN CASE OF AN EMERGENCY
504
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.

IN CASE OF AN EMERGENCY
506
Audible voice prompts
The following table shows the voice responses from the Lexus Link System.
Voice phrase: Explanation about Lexus Link System
This is the Lexus Link system. Integrating
global positioning satellite and wireless
communication technology into your
Lexus and providing enhanced safety,
security, and convenience. At the touch of
a button, or automatically in the event of
an accident, you are connected to a Lexus
Link Advisor who will assist you Ð 24
hours a day, 7 days a week where GPS
and cellular coverage is available. The
Lexus Link System also has an audio
recorder allowing you to record reminders
to yourself or information from a Lexus
Link Advisor.
To contact a Lexus Link Advisor, press the
SERVICESº button. The Lexus Link
System will inform the advisor of your
vehicle's current location and your
identity. The advisors can handle a wide
variety of services, such as giving
directions to shops, gas stations, ATMs,
restaurants and roadside assistance with
location. Services available will depend
on the service package you selected.In an emergency, press the emergency
services button on your Lexus Link
console. It is marked with a red
ambulance. Upon receiving your call, the
advisor will assess the situation and, if
necessary, alert the nearest emergency
services provider. The emergency button
should only be used in life threatening
situations.
If your Lexus detects that an airbag
deployment may have occurred, the
Lexus Link System will automatically send
an emergency message to the Lexus Link
Call Center.
The system will also automatically contact
the call center if the security system alarm
goes off. An advisor will first contact you
to determine if the alarm is valid. Upon
your confirmation, the advisor will then
provide the vehicle location to the police.If you accidentally set off the alarm, press
the remote door unlock, or insert your key
in the door lock or ignition within 55
seconds. This will prevent the Lexus Link
System from placing a theft call.
The volume control lets you adjust the
volume level for Lexus Link calls, system
prompts, and memos. Press the plus key
to increase volume and the minus key to
decrease it.
To record a memo or a call, press the key
labeled RECº. When you are finished
recording, press the RECº button again.
To listen to the memo, press the PLAYº
button. You can record one message up
to five minutes long. When you record a
new memo, all of the previous memos will
be erased.
For more detailed information on the use,
features and limitations of this system,
please consult your Lexus Link Owner's
Manual.

IN CASE OF AN EMERGENCY
510
IF YOU LOSE YOUR KEYS OR
LOCK YOURSELF OUT
You can purchase a new key at your Lexus dealer if you
can give them the key number and master key.
Even if you lose only one key, contact your Lexus dealer to
make a new key. If you lose all your master keys, you cannot
make new keys; the whole engine immobilizer system must be
replaced.
See the suggestion given in Keysº on page 8.
You can use the wireless remote control system with the new
key. Contact your Lexus dealer for detailed information.
If your keys are locked in the vehicle and you cannot get a
duplicate, many Lexus dealers can still open the door for you
using special tools. If your vehicle is equipped with Lexus Link
System, call the Lexus Link Call Center 1-800-25-LEXUS
(Toll-Free) (1-800-255-3987). Once you provide the Lexus
Link Call Center Advisor with your Lexus Link PIN (Personal
Identification Number), or personal security word, they will
unlock your vehicle.