service Lexus GX470 2004 Engine / LEXUS 2004 GX470 FROM JAN. 2004 THROUGH JUL. 2004 PROD. (OM60A87U) Repair Manual

IN CASE OF AN EMERGENCY
507
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
508Voice phrase
Description
The Lexus Link System is
active.The system is operational
with the ignition on.
Placing an emergency call
to Lexus Link CenterEmergency call is placed.
Calling the Lexus Link
CenterService call is placed.
Lexus Link Call cancelledService call is cancelled.
Previous attempt to call the
Lexus Link Center was
unsuccessful.The attempt to call the
Lexus Link Center was
unsuccessful.
RecordingThe recording will start.
Recording completeThe recording is complete.
Recording time exceededThe recording memory is
now full.
Playback completeThe playback is complete.
Playback cancelledThe playback is cancelled.
A Lexus Link System error
has been detected. Please
contact your Lexus dealer.An error has been detected
with the Lexus Link System.
Contact your Lexus dealer.
Voice phraseDescription
The Lexus Link System is
not active. To activate your
Lexus Link System, press
the SERVICESº button
now.Message notifies vehicle
occupants that the
subscription has expired.

IN CASE OF AN EMERGENCY
509
Your Lexus Link
subscription has expired.
Services are not available.
You operated a Lexus Link
button despite an expired
subscription. Your Lexus
Link subscription has
expired, push the Servicesº
button a second time to
reactivate.
No cellular service
available. Unable to
contact the Call Center.In cellular coverage areas
without analog coverage,
you cannot use the Lexus
Link System. Unable to
contact the Lexus Link Call
Center until you have
cellular coverage.

IN CASE OF AN EMERGENCY
512
NOTICE
You must provide the Lexus Link operator with yourLexus Link PIN (Personal Identification Number) orpersonal security word, before they lock/unlock yourvehicle. However, the Lexus Link System will not beable to lock or unlock your vehicle if it has been parkedfor 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) are deactivated.
If you must break a window to get in, we suggest breaking the
smallest side window because it is the least expensive to
replace. Be extremely cautious to avoid glass cuts.

MAINTENANCE
515
MAINTENANCE REQUIREMENTS
Your Lexus vehicle has been designed to have fewer
maintenance requirements with longer service intervals to
save both your time and money. However, each regular
maintenance as well as day-to-day care is more important
than ever before to ensure smooth, trouble-free, safe, and
economical driving.
It is the owner's responsibility to make sure the specified
maintenance, including general maintenance services, is
performed. Note that both the new vehicle and emission
control system warranties specify that proper maintenance
and care must be performed. See the Owner's Guideº,
Owner's Manual Supplementº or Warranty Bookletº for
complete warranty information.
General maintenance
General maintenance items are those day-to-day care
practices that are important to your vehicle for proper
operation. It is the owner's responsibility to ensure that the
general maintenance items are performed regularly.
These checks or inspections can be done either by yourself or
your Lexus dealer.
Scheduled maintenance
The scheduled maintenance items listed in the Owner's
Manual Supplement/Scheduled Maintenanceº are those
required to be serviced at regular intervals. For details of your maintenance schedule, read the Owner's
Manual Supplement/Scheduled Maintenanceº.
It is recommended that only genuine Lexus parts be used
for maintenance or for the repair of the emission control
system.
The owner may elect to use non-Lexus supplied parts for
replacement purposes without invalidating the emission
control system warranty. However, use of replacement
parts which are not of equivalent quality may impair the
effectiveness of the emission control systems.
You may also elect to have maintenance, replacement, or
repair of the emission control devices and system
performed by any automotive repair establishment or
individual without invalidating this warranty. See
Owner's Guideº, Owner's Manual Supplementº or
Warranty Bookletº for complete warranty information.
Where to go for service?
Lexus technicians are well-trained specialists and
are kept up
to date with the latest service information through technical
bulletins, service tips, and in-dealership training programs.
They are well informed about the operation of all the systems
on your vehicle.
You can be confident that your Lexus dealer's service
department performs the best job to meet the maintenance
requirements of your vehicle Ð reliably and economically.

MAINTENANCE
516Your copy of the repair order is proof that all required
maintenance has been performed for warranty coverage. If
any problems should arise with your vehicle while under
warranty,
your Lexus dealer will promptly take care of it. Again,
be sure to keep a copy of the repair order for any service
performed on your Lexus.
What about do-it-yourself maintenance?
Many of the maintenance items are easy to do yourself, if you
have a little mechanical ability and a few basic automotive
tools. Simple instructions for how to perform them are
presented in Section 6.
If you are a skilled do-it-yourself mechanic, the Lexus service
manuals are recommended. Please be aware that
do-it-yourself maintenance can affect your warranty
coverage. See your Owner's Guideº, Owner's Manual
Supplementº or Warranty Bookletº for the details.
GENERAL MAINTENANCE
Listed below are the general maintenance items that should be
performed at the intervals specified. It is recommended that
any problem you notice be brought to the attention of your
Lexus dealer or qualified service shop for their advice.
CAUTION
Make these checks only with adequate ventilation if you
run the engine.
Engine compartment
Items listed below should be checked from time to time,
e.g. each time when refueling.
Washer fluid
Make sure there is sufficient fluid in the tank. See page 602 for
additional information.
Engine coolant level
Make sure the coolant level is between the Fº and Lº lines on
the see-through reservoir when the engine is cold. See page
547 for additional information.
Radiator, condenser and hoses
Check that the front of the radiator and condenser are clean
and not blocked with leaves, dirt, or insects. See page 549 for
additional information.

MAINTENANCE
517
Battery
Check the battery condition by the indicator color. See page
592 for additional information.
Brake fluid level
Make sure the brake fluid level is correct. See page 556 for
additional information.
Engine oil level
Check the level on the dipstick with the engine turned off and
the vehicle parked on a level spot. See page 542 for
additional
information.
Power steering fluid level
Check the level through the reservoir. The level should be in
the HOTº or COLDº range depending on the fluid
temperature. See page 557 for additional information.
Exhaust system
If you notice any change in the sound of the exhaust or smell
exhaust fumes, have the cause located and corrected
immediately. (See Engine exhaust cautionº on page 372.)
Vehicle interior
Items listed below should be checked regularly, e.g. while
performing periodic services, cleaning the vehicle, etc.
Lights
Make sure the headlights, stop lights, tail lights, turn signal
lights, and other lights are working. Check headlight aim. Service reminder indicators and warning buzzers
Check
that all service reminder indicators and warning buzzers
function properly.
Steering wheel
Check that it has the specified free play. Be alert for changes
in steering condition, such as hard steering, excessive free
play or strange noise.
Seats
Check that all front seat controls such as seat adjusters,
seatback recliner, etc. operate smoothly. Check that the head
restraints move up and down smoothly and that the locks hold
securely in any latched position. For folding-up second and
third seats, and detachable third seat, check that the latches
lock securely.
Seat belts
Check that the seat belt system such as buckles, retractors
and anchors operate properly and smoothly. Make sure the
belt webbing is not cut, frayed, worn or damaged.
Accelerator pedal
Check the pedal for smooth operation and uneven pedal ef fort
or catching.
Brake pedal
Check the pedal for smooth operation and the proper
clearance and free play. Check the brake booster function.

MAINTENANCE
519
DOES YOUR VEHICLE NEEDREPAIRING?
Be on the alert for changes in performance and sounds, and
visual tip-offs that indicate service is needed. Some important
clues are:

Engine missing, stumbling, or pinging

Appreciable loss of power

Strange engine noises

A fluid leak under the vehicle (However, water dripping from
the air conditioning after use is normal.)

Change in exhaust sound (This may indicate a dangerous
carbon monoxide leak. Drive with the windows open and
have the exhaust system checked immediately.)

Flat-looking tires, excessive tire squeal when cornering,
uneven tire wear

Vehicle pulls to one side when driving straight on a level
road

Strange noises related to suspension movement

Loss of brake effectiveness, spongy feeling brake pedal,
pedal almost touches floors, vehicle pulls to one side when
braking

Engine coolant temperature continually higher than normal If you notice any of these clues, take your vehicle to your Lexus
dealer as soon as possible. It probably needs adjustment or
repair.
CAUTION
Do not continue driving with the vehicle unchecked. It
could result in serious vehicle damage and possibly
personal injury.

MAINTENANCE
520
EMISSIONS INSPECTION AND
MAINTENANCE (I/M) PROGRAMS
Some states have vehicle emission inspection programs
which include OBD (On-Board Diagnostics) checks.
The OBD system monitors the operation of the emission
control system. When the OBD system determines that a
problem exists somewhere in the emission control system, the
malfunction indicator lamp comes on. In this case, your vehicle
may not pass the I/M test and need to be repaired. Contact
your Lexus dealer to service the vehicle.
Even if the malfunction indicator lamp does not come on, your
vehicle may not pass the I/M test as readiness codes have not
been set in the OBD system.
Readiness codes are automatically set during ordinary driving.
However, when the battery is disconnected or run down, the
codes are erased. Also, depending on your driving habits, the
codes may not be completely set.
Also, if the malfunction indicator lamp had come on recently
due to temporary malfunction such as a loose fuel tank cap,
your vehicle may not pass the I/M test.
The malfunction indicator lamp will go off after taking several
driving trips, but the error code in the OBD system will not be
cleared unless about 40 trips or more are taken.
If your vehicle does not pass the I/M test and the malfunction
indicator lamp does not come on, contact your Lexus dealer to
prepare the vehicle for re-testing.

SECTION 6 ± 1
522
SERVICE PROCEDURES AND
SPECIFICATIONS
Introduction
Vehicle identification523
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Theft prevention labels 524
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Engine compartment overview 525 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
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Do-it-yourself service precautions 528
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Parts and tools 530
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