park assist Lexus GX470 2003 Basic Functions / LEXUS 2003 GX470 OWNER'S MANUAL (OM60A45U)

For detailed information, refer to the description given in each section\
.
PICTORIAL INDEX
viiiPage
1Driving position memory switches
171
. . . . . . . . . . .
2Power window switches 33
. . . . . . . . . . . . . . . . . . . . . . .
3Power door lock switch 20
. . . . . . . . . . . . . . . . . . . . . . .
4Window lock switch 34
. . . . . . . . . . . . . . . . . . . . . . . . . . .
5Power rear view mirror control switches 116 . . . . . . .
6Side vents 189
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
7Headlight, turn signal and fog light switches 24 . . . .
8Wiper and washer switch 27
. . . . . . . . . . . . . . . . . . . . . .
9Center vents 189
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
10Emergency flasher switch 36
. . . . . . . . . . . . . . . . . . . . .
11Car audio 195
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
12Multiinformation display 53
. . . . . . . . . . . . . . . . . . . . . .
13Automatic air conditioning controls 179
. . . . . . . . . .
14Rear window defogger switch 31
. . . . . . . . . . . . . . . . . .
15Front passenger’s seat belt reminder light 46 . . . . . .
16Glove box 70
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
17Ashtray 66
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . \
. .
18Cigarette lighter 66
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
19Seat heater switches 37
. . . . . . . . . . . . . . . . . . . . . . . . . . Page
20Fourwheel drive control lever
309
. . . . . . . . . . . . . . .
21Automatic transmission selector lever 303 . . . . . . . .
22Parking brake lever 301
. . . . . . . . . . . . . . . . . . . . . . . . .
23Center differential lock switch 309
. . . . . . . . . . . . . . .
24Power outlet (12 VDC) 68
. . . . . . . . . . . . . . . . . . . . . . . . .
25Downhill assist control switch 326
. . . . . . . . . . . . . . .
26Electronic modulated suspension
control switch 320 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
27Rear height control air suspension
switches 315. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
28Ignition switch 300
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
29“2nd STRT” switch 309
. . . . . . . . . . . . . . . . . . . . . . . . . .
30Cruise control switch 312
. . . . . . . . . . . . . . . . . . . . . . .
31Steering pad switches 214
. . . . . . . . . . . . . . . . . . . . . . .
32Hood lock release lever 83
. . . . . . . . . . . . . . . . . . . . . . .
33Fuel filler door opener 84
. . . . . . . . . . . . . . . . . . . . . . . . .
34Instrument panel light control dial 60
. . . . . . . . . . . . . .
35Outside rear view mirror defogger switch 32 . . . . . . .
36Power outlet (115 VAC) main switch 68
. . . . . . . . . . . .

For detailed information, refer to the description given in each section\
.
PICTORIAL INDEX
xPage
1Automatic transmission second start
indicator light 309
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2Unengaged “Park” warning light 49
. . . . . . . . . . . . . . .
3Automatic transmission fluid temperature
warning light 49 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4Low washer fluid warning light 51
. . . . . . . . . . . . . . . . .
5Automatic transmission indicator lights 303 . . . . . .
6Driver’s seat belt reminder light 45
. . . . . . . . . . . . . . . .
7Turn signal indicator light 25
. . . . . . . . . . . . . . . . . . . . .
8Brake system warning light 44
. . . . . . . . . . . . . . . . . . . .
9Headlight high beam indicator light 25
. . . . . . . . . . . .
10“ABS” warning light 48
. . . . . . . . . . . . . . . . . . . . . . . . . .
11Open door warning light 49
. . . . . . . . . . . . . . . . . . . . . . .
12Tachometer 42
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
13Headlight indicator light 24
. . . . . . . . . . . . . . . . . . . . . . .
14Cruise control indicator light 312
. . . . . . . . . . . . . . . .
15Engine oil replacement reminder light 51
. . . . . . . . . .
16Engine coolant temperature gauge 41
. . . . . . . . . . . . . Page
17Discharge warning light
50
. . . . . . . . . . . . . . . . . . . . . . .
18Low engine oil pressure warning light 50
. . . . . . . . . .
19Malfunction indicator lamp 47
. . . . . . . . . . . . . . . . . . . .
20Slip indicator light 322, 324, 327, 329
. . . . . . . . . . . . .
21Vehicle skid control system off
indicator light 324 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
22Center differential lock indicator light 309
. . . . . . . .
23“VSC TRAC” warning light 50
. . . . . . . . . . . . . . . . . . . . .
24Downhill assist control system
indicator light 326 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
25Rear height control indicator lights 319
. . . . . . . . . . .
26Security indicator light 12, 175
. . . . . . . . . . . . . . . . . . .
27SRS warning light 46
. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
28Trip meter reset knob 42
. . . . . . . . . . . . . . . . . . . . . . . . .
29Odometer and trip meter 42
. . . . . . . . . . . . . . . . . . . . . .
30Low fuel level warning light 51
. . . . . . . . . . . . . . . . . . . .
31Fuel gauge 40
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Finish
GAUGES, METERS AND SERVICE REMINDER INDICATORS
49
(g) Open Door Warning Light
This light remains on until all the side doors and back door are
completely closed.
(h) Unengaged “Park” Warning Light
This light warns that the transmission “Park” mechanism is not
engaged. If the four −wheel drive control is in the “N” position
while the selector lever is in the “P” position, the transmission
will disengage and the wheels will not lock.
CAUTION
To restore the park function, shift the fourwheel drive
control out of “N”.
(i) Automatic Transmission Fluid Temperature Warning Light
This light warns that the automatic transmission fluid
temperature is too high.
If this light comes on while you are driving, slow down and pull
off the road. Stop the vehicle at a safe place and put the
selector lever in “P” and leave the engine idling until the light
goes off. If the light goes off, you can start the vehicle again.
If the light does not go off, call a Lexus dealer or qualified repair
shop for assistance.
NOTICE
Continued driving with the warning light on may
damage the automatic transmission.

SECTION 3 – 1
296
STARTING AND DRIVING
Starting and driving
Three−way catalytic converters297
. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Engine exhaust caution 298
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Before starting the engine 299
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Ignition switch with steering lock 300
. . . . . . . . . . . . . . . . . . . . . . . . . . .
Parking brake 301
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . . . .
How to start the engine 302
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Automatic transmission 303
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Four−wheel drive system 309
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Cruise control 312
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . . . .
Rear height control air suspension 315
. . . . . . . . . . . . . . . . . . . . . . . . .
Electronic modulated suspension 320
. . . . . . . . . . . . . . . . . . . . . . . . . .
Active traction control system 321
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Vehicle skid control system 323
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Downhill assist control system 326
. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Hill −start assist control system 329
. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Brake system 331
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . . . .
Brake pad wear limit indicators 335
. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Limited −slip differential 336
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Types of tires 336
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . . . . .

STARTING AND DRIVING
335
Brake assist system
When you slam the brakes on, the brake assist system
judges as an emergency stop and provides more powerful
braking for a driver who cannot hold down the brake pedal
firmly.
When you slam the brakes on, more powerful braking will be
applied. At this time, you may hear a sound in the engine
compartment and feel the vibrations of the brake pedal. This
does not indicate a malfunction.
The brake assist system becomes operative after the vehicle
has accelerated to a speed in excess of approximately 10 km/h
(6 mph). It stops operating when the vehicle decelerates to a
speed below approximately 5 km/h (3 mph).
The brake assist system may not work for about 60 seconds
after the engine is started.
For an explanation of this system’s warning light, see “ABS
warning light” on page 48.
Drumindisc type parking brake system
Your vehicle has a drum−in−disc type parking brake system.
This type of brake system needs bedding −down of the brake
shoes periodically or whenever the parking brake shoes and/or
drums are replaced.
Have your Lexus dealer perform the bedding −down.
BRAKE PAD WEAR LIMIT
INDICATORS
The brake pad wear limit indicators on your disc brakes
give a warning noise when the brake pads are worn to the
extent that replacement is required.
If you hear a squealing or scraping noise while driving, have the
brake pads checked and replaced by your Lexus dealer as
soon as possible. Expensive rotor damage can result if the
pads are not replaced when needed.

DRIVING TIPS
341
TIPS FOR DRIVING IN VARIOUSCONDITIONS
Always slow down in gusty crosswinds. This will allow you
much better control.
 Drive slowly onto curbs and, if possible, at a right angle.
Avoid driving onto high, sharp −edged objects and other
road hazards. Failure to do so can lead to severe tire
damage such as a tire burst.
Drive slowly when passing over bumps or travelling on a
bumpy road. Otherwise, the impact could cause severe
damage to the tires and/or wheels.
 When parking on a hill, turn the front wheels until they touch
the curb so that the vehicle will not roll. Apply the parking
brake, and place the transmission in “P”. If necessary, block
the wheels.
 Washing your vehicle or driving through deep water may get
the brakes wet. To see whether they are wet, check that
there is no traffic near you and then press the pedal lightly.
If you do not feel a normal braking force, the brakes are
probably wet. To dry them, drive the vehicle cautiously while
lightly pressing the brake pedal with the parking brake
applied. If they still do not work safely, pull to the side of the
road and call a Lexus dealer for assistance.
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 306.
 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 spin or skid.
 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.

IN CASE OF AN EMERGENCY
363
IF YOU CANNOT INCREASE THEENGINE SPEED
If the engine speed does not increase with the accelerator
pedal depressed down, there may be a problem somewhere
in your electronic throttle control system.
At this time, vibration may occur. However, if you depress the
accelerator pedal more firmly and slowly, you can drive your
vehicle at low speeds. Have your vehicle checked by your
Lexus dealer as soon as possible.
Even if the abnormality of the electronic throttle control system
is corrected during low speed driving, the system may not be
recovered until the engine is stopped and the ignition key is
turned to “ACC” or “LOCK” position.
CAUTION
Be especially careful to prevent erroneous pedal
operation.
IF YOUR VEHICLE OVERHEATS
If your engine coolant temperature gauge indicates
overheating, if you experience a loss of power, or if you
hear a loud knocking or pinging noise, the engine has
probably overheated.
When the engine overheats
Pull safely off the road, stop the vehicle and turn on your
emergency flashers. Put the transmission in “P” and apply the
parking brake.
A: If steam is coming from your engine:
Turn off the engine. Leave the hood closed until there is no sign
of steam or coolant. Your engine could have been seriously
damaged already. Call your Lexus dealer for assistance.
CAUTION
To help avoid personal injury, keep the hood closed until
there is no steam. Escaping steam or coolant is sign of
very high pressure.

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
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.

BODY
461
Check the interior of your vehicle.
Water and dirt can
accumulate under the floor mats and could cause corrosion.
Occasionally check under the mats to make sure the area is
dry. Be particularly careful when transporting chemicals,
cleansers, fertilizers, salt, etc. These should be transported in
proper containers. If a spill or leak should occur, immediately
clean and dry the area.
Use mud shields on your wheels. If you drive on salted or
gravel roads, mud shields help protect your vehicle. Full −size
shields, which come as near to the ground as possible, are the
best. We recommend that the fittings and the area where the
shields are installed be treated to resist corrosion. Your Lexus
dealer will be happy to assist in supplying and installing the
shields if they are recommended for your area.
Keep your vehicle in a well ventilated garage or a roofed
place. Do not park your vehicle in a damp, poorly
ventilated garage. If you wash your vehicle in the garage, or
if you drive it covered with water or snow, your garage may be
so damp and it will cause corrosion. Even if your garage is
heated, a wet vehicle can corrode if the ventilation is poor.
WASHING AND WAXING
Washing your Lexus
Keep your vehicle clean by regular washing.
The following cases may cause weakness to the paint or
corrosion to the body and parts. W ash your vehicle as soon as
possible.
 When driving in a coastal area
 When driving on a road sprinkled with antifreeze
 When having coal tar, tree sap, bird droppings and carcass
of an insect
 When driving in the areas where there is a lot of smoke,
soot, dust, iron dust and chemical substances
 When the vehicle becomes remarkably dirty with dust and
mud
Handwashing your Lexus
Work in the shade and wait until the vehicle body is not hot
to the touch.
1. Rinse off loose dirt with a hose. Remove any mud or road
salt from the underside of the vehicle or in the wheel wells.
2. Wash with a mild car −wash soap, mixed according to the
manufacturer’s instructions. Use a soft cotton mitt and keep it
wet by dipping it frequently into the wash water. Do not rub hard
− let the soap and water remove the dirt.