differential Lexus GX470 2006 Basic Functions In Frequent Use / LEXUS 2006 GX470 OWNER'S MANUAL (OM60B99U)

For detailed information, refer to the description given in each Section\
.
PICTORIAL INDEX
xiiPage
1Driving position memory switches
198
. . . . . . . . . . .
2Power window switches 40
. . . . . . . . . . . . . . . . . . . . . . .
3Power door lock switch 22
. . . . . . . . . . . . . . . . . . . . . . .
4Window lock switch 41
. . . . . . . . . . . . . . . . . . . . . . . . . . .
5Power rear view mirror control switches 204 . . . . . .
6Side vents 225
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
7Headlight, turn signal and
fog light switches 30, 32, 33 . . . . . . . . . . . . . . . . . . . . . .
8Wiper and washer switches 33
. . . . . . . . . . . . . . . . . . . .
9Center vents 225
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
10Emergency flasher switch 43
. . . . . . . . . . . . . . . . . . . . .
11Audio system 232
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
12Multiinformation display 63
. . . . . . . . . . . . . . . . . . . . . .
13Automatic air conditioning controls 214
. . . . . . . . . .
14Rear window defogger switch 38
. . . . . . . . . . . . . . . . . .
15Front passenger’s seat belt reminder light 55 . . . . . .
16“AIRBAG ON” and “AIRBAG OFF”
indicator lights 169. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
17Glove box 83
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
18Ashtray 80
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . \
. .
19Cigarette lighter 80
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
20Seat heater switches 44
. . . . . . . . . . . . . . . . . . . . . . . . . . Page
21Fourwheel drive control lever
356
. . . . . . . . . . . . . . .
22Automatic transmission selector lever 349 . . . . . . . .
23Parking brake lever 347
. . . . . . . . . . . . . . . . . . . . . . . . .
24Center differential lock switch 356
. . . . . . . . . . . . . . .
25Power outlet (12 VDC) 81
. . . . . . . . . . . . . . . . . . . . . . . . .
26Downhill assist control switch 377
. . . . . . . . . . . . . . .
27Electronic modulated suspension
control switch 371 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
28Rear height control air suspension
switches 366. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
29Ignition switch 345
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
30“2nd STRT” (second start) switch 355
. . . . . . . . . . . .
31Tire pressure warning system
selector switch 393 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
32Cruise control switch 362
. . . . . . . . . . . . . . . . . . . . . . .
33Audio remote control switches 250
. . . . . . . . . . . . . . .
34Instrument panel light control dial 74
. . . . . . . . . . . . . .
35Hood lock release lever 100
. . . . . . . . . . . . . . . . . . . . .
36Fuel filler door opener 101
. . . . . . . . . . . . . . . . . . . . . . .
37“RSCA OFF” (roll sensing of curtain
shield airbags off) switch 174 . . . . . . . . . . . . . . . . . . . .
38Outside rear view mirror defogger switch 39 . . . . . . .
39Power outlet (115 VAC) main switch 82
. . . . . . . . . . . .

For detailed information, refer to the description given in each Section\
.
PICTORIAL INDEX
xivPage
1Driving position memory switches
198
. . . . . . . . . . .
2Power window switches 40
. . . . . . . . . . . . . . . . . . . . . . .
3Power door lock switch 22
. . . . . . . . . . . . . . . . . . . . . . .
4Window lock switch 41
. . . . . . . . . . . . . . . . . . . . . . . . . . .
5Power rear view mirror control switches 204 . . . . . .
6Side vents 225
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
7Headlight, turn signal and
fog light switches 30, 32, 33 . . . . . . . . . . . . . . . . . . . . . .
8Wiper and washer switches 33
. . . . . . . . . . . . . . . . . . . .
9Center vents 225
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
10Emergency flasher switch 43
. . . . . . . . . . . . . . . . . . . . .
11Rear view monitor/navigation system display
including air conditioning controls and audio
system
(For the navigation system, see the separate
“Navigation System Owner’s Manual”.) 358 . . . . . . .
12Multiinformation display 63
. . . . . . . . . . . . . . . . . . . . . .
13Automatic air conditioning controls
See the separate
. . . . . . . . .
“Navigation System Owner’s Manual”.
14Rear window defogger switch 38
. . . . . . . . . . . . . . . . . .
15Front passenger’s seat belt reminder light 55 . . . . . .
16“AIRBAG ON” and “AIRBAG OFF”
indicator lights 169. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
17Glove box 83
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
18Audio system
See the separate
. . . . . . . . .
“Navigation System Owner’s Manual”.
19Ashtray 80
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. Page
20Cigarette lighter
80
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
21Seat heater switches 44
. . . . . . . . . . . . . . . . . . . . . . . . . .
22Fourwheel drive control lever 356
. . . . . . . . . . . . . . .
23Automatic transmission selector lever 349 . . . . . . . .
24Parking brake lever 347
. . . . . . . . . . . . . . . . . . . . . . . . .
25Center differential lock switch 356
. . . . . . . . . . . . . . .
26Power outlet (12 VDC) 81
. . . . . . . . . . . . . . . . . . . . . . . . .
27Downhill assist control switch 377
. . . . . . . . . . . . . . .
28Electronic modulated suspension
control switch 371 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
29Rear height control air suspension
switches 366. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
30Ignition switch 345
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
31“2nd STRT” (second start) switch 355
. . . . . . . . . . . .
32Tire pressure warning system
selector switch 393 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
33Cruise control switch 362
. . . . . . . . . . . . . . . . . . . . . . .
34Speech command switch
See the separate
. . . . . . . . .
“Navigation System Owner’s Manual”.
35Audio remote control switches 250
. . . . . . . . . . . . . . .
36Instrument panel light control dial 74
. . . . . . . . . . . . . .
37Hood lock release lever 100
. . . . . . . . . . . . . . . . . . . . .
38Fuel filler door opener 101
. . . . . . . . . . . . . . . . . . . . . . .
39“RSCA OFF” (roll sensing of curtain
shield airbags off) switch 174 . . . . . . . . . . . . . . . . . . . .
40Outside rear view mirror defogger switch 39 . . . . . . .
41Power outlet (115 VAC) main switch 82
. . . . . . . . . . . .

For detailed information, refer to the description given in each Section\
.
PICTORIAL INDEX
xviPage
1Automatic transmission second start
indicator light 355
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2Unengaged “Park” warning light 58
. . . . . . . . . . . . . . .
3Automatic transmission fluid temperature
warning light 58 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4Low washer fluid warning light 61
. . . . . . . . . . . . . . . . .
5Automatic transmission indicator lights 349 . . . . . .
6Driver’s seat belt reminder light 54
. . . . . . . . . . . . . . . .
7Turn signal indicator light 32
. . . . . . . . . . . . . . . . . . . . .
8Brake system warning light 53
. . . . . . . . . . . . . . . . . . . .
9Headlight high beam indicator light 32
. . . . . . . . . . . .
10Antilock brake system warning light 57
. . . . . . . . . . .
11Open door warning light 58
. . . . . . . . . . . . . . . . . . . . . . .
12Tachometer 50
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
13Headlight indicator light 30
. . . . . . . . . . . . . . . . . . . . . . .
14Cruise control indicator light 362
. . . . . . . . . . . . . . . .
15Engine oil replacement reminder light 60
. . . . . . . . . .
16Slip indicator light 373, 375, 378, 381
. . . . . . . . . . . . .
17Low engine oil pressure warning light 60
. . . . . . . . . .
18Charging system warning light 59
. . . . . . . . . . . . . . . . . Page
19Engine coolant temperature gauge
49
. . . . . . . . . . . . .
20Malfunction indicator lamp 56
. . . . . . . . . . . . . . . . . . . .
21Vehicle stability control system off
indicator light 376 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
22Roll sensing of curtain shield airbags off
indicator light 174. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
23Kinetic dynamic suspension system
warning light 59. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
24Center differential lock indicator light 356
. . . . . . . .
25Vehicle stability control system and active
traction control system warning light 59 . . . . . . . . . . .
26Downhill assist control system
indicator light 378. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
27Height control indicator lights 370
. . . . . . . . . . . . . . .
28Security indicator light 12, 27
. . . . . . . . . . . . . . . . . . . .
29SRS warning light 55
. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
30Trip meter reset knob 50
. . . . . . . . . . . . . . . . . . . . . . . . .
31Odometer and trip meter 50
. . . . . . . . . . . . . . . . . . . . . .
32Low fuel level warning light 61
. . . . . . . . . . . . . . . . . . . .
33Low tire pressure warning light 61
. . . . . . . . . . . . . . . .
34Fuel gauge 48
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

For detailed information, refer to the description given in each Section\
.
PICTORIAL INDEX
xviiiPage
1Automatic transmission second start
indicator light 355
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2Unengaged “Park” warning light 58
. . . . . . . . . . . . . . .
3Automatic transmission fluid temperature
warning light 58 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4Low washer fluid warning light 61
. . . . . . . . . . . . . . . . .
5Automatic transmission indicator lights 349 . . . . . .
6Driver’s seat belt reminder light 54
. . . . . . . . . . . . . . . .
7Turn signal indicator light 32
. . . . . . . . . . . . . . . . . . . . .
8Brake system warning light 53
. . . . . . . . . . . . . . . . . . . .
9Headlight high beam indicator light 32
. . . . . . . . . . . .
10Antilock brake system warning light 57
. . . . . . . . . . .
11Open door warning light 58
. . . . . . . . . . . . . . . . . . . . . . .
12Tachometer 50
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
13Tail light indicator light 30
. . . . . . . . . . . . . . . . . . . . . . . .
14Cruise control indicator light 362
. . . . . . . . . . . . . . . .
15Slip indicator light 373, 375, 378, 381
. . . . . . . . . . . . .
16Low engine oil pressure warning light 60
. . . . . . . . . .
17Charging system warning light 59
. . . . . . . . . . . . . . . . .
18Engine coolant temperature gauge 49
. . . . . . . . . . . . . Page
19Malfunction indicator lamp
56
. . . . . . . . . . . . . . . . . . . .
20Vehicle stability control system off
indicator light 376 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
21Roll sensing of curtain shield airbags off
indicator light 174. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
22Kinetic dynamic suspension system
warning light 59. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
23Center differential lock indicator light 356
. . . . . . . .
24Vehicle stability control system and active
traction control system warning light 59 . . . . . . . . . . .
25Downhill assist control system
indicator light 378. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
26Height control indicator lights 370
. . . . . . . . . . . . . . .
27Security indicator light 12, 27
. . . . . . . . . . . . . . . . . . . .
28SRS warning light 55
. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
29Trip meter reset knob 50
. . . . . . . . . . . . . . . . . . . . . . . . .
30Odometer and trip meter 50
. . . . . . . . . . . . . . . . . . . . . .
31Low fuel level warning light 61
. . . . . . . . . . . . . . . . . . . .
32Low tire pressure warning light 61
. . . . . . . . . . . . . . . .
33Fuel gauge 48
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

SECTION 3 – 1
341
STARTING AND DRIVING
Starting and driving
Three−way catalytic converters342
. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Engine exhaust caution 343
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Before starting the engine 344
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Ignition switch 345
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . . . .
Parking brake 347
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . . . .
How to start the engine 348
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Automatic transmission 349
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Four−wheel drive system 356
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Rear view monitor system 358
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Cruise control 362
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . . . .
Rear height control air suspension 366
. . . . . . . . . . . . . . . . . . . . . . . . .
Electronic modulated suspension 371
. . . . . . . . . . . . . . . . . . . . . . . . . .
Active traction control system 372
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Vehicle stability control system 375
. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Downhill assist control system 377
. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Hill −start assist control 380
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Brake system 383
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . . . .
Tire pressure warning system 387
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Brake pad wear limit indicators 394
. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Limited −slip differential 395
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

STARTING AND DRIVING
356
FOURWHEEL DRIVE SYSTEM
(a) Fourwheel drive control
Use the fourwheel drive control lever and center
differential lock switch to select the following transfer and
center differential modes.
The “H” and “L” position of the four −wheel drive control lever
provides either lock or unlock mode of the center differential
depending on the center differential lock switch position.
Use the center dif ferential lock system if your wheels get stuck
in a ditch, or when you are driving on a slippery or bumpy
surface. When the center differential is locked, the vehicle
stability control system is automatically turned off and the
center dif ferential lock and “VSC OFF” indicator lights come on
because the function that controls engine performance
interferes with the process of freeing your wheels.
NOTICE
As soon as the center differential lock switch is turned
on, the “VSC OFF” indicator light comes on. After the
wheels are out of the ditch or off the slippery or bumpy
surface, turn the center differential lock switch off.
Make sure the center differential lock indicator light and
vehicle stability control system off indicator light turn
off.
“H” (high speed position, center differential unlocked):
Lever at “H”, center differential lock switch left out
Use this for normal driving on all types of roads, from dry
hard−surfaced roads to wet, icy or snow −covered roads. This
position gives greater economy, quietest ride, least wear and
better vehicle control.
“H” (high speed position, center differential locked): Lever
at “H”, center differential lock switch pushed in
Use this for greater traction when you experience a loss of
power, such as wheel slipping, in the center differential unlock
mode.
“N” (neutral position): Lever at “N”
No power is delivered to the wheels. The vehicle must be
stopped.

STARTING AND DRIVING
357
“L” (low speed position, center differential unlocked):
Lever at “L”, center differential lock switch left out
Use this for maximum power and traction. Use this for climbing
or descending steep hills, off
−road driving, and hard pulling in
sand or mud.
In this mode, the braking feeling that occurs when the wheels
are negotiating a sharp corner is further reduced than in the “L”
(low position, center differential locked) mode.
“L” (low speed position, center differential locked): Lever
at “L”, center differential lock switch pushed in
Use this for maximum power and traction. Use this for hard
pulling in situations the vehicle cannot negotiate even in the “L”
(low speed position, center differential unlocked) mode. Also,
using this mode when driving down steep off −road inclines will
help contribute to increased vehicle stability.
The indicator light tells when the differential lock is engaged.
Note that the differential is not still locked as long as the
indicator light remains off.
When the operation is not completed, the indicator blinks. If the
indicator light does not go off when you push out the center
differential lock switch, drive straight ahead while accelerating
or decelerating, or drive in reverse.
The center differential lock system operation is not completed
within 5 seconds while the cruise control system is set, cancel
the cruise control system. To cancel the cruise control system,
see “Cruise control” on page 362. If the indicator light does not go off when you push out the
center differential lock switch, drive straight ahead while
accelerating or decelerating, or drive in reverse.
See “(b) Shifting procedure” for further instructions.
(b) Shifting procedure
To shift between unlock and lock modes in “H”,
push the
center differential lock switch.
To shift between unlock and lock modes in “L”, push the
center differential lock switch.
To shift between “H” and “L”, stop the vehicle, put the
transmission into “N” and move the four −wheel drive control
lever.
CAUTION
Never move the fourwheel drive control lever if wheels
are slipping. Stop the slipping or spinning before
shifting.

STARTING AND DRIVING
358
NOTICE
For normal driving on dry and hard surface roads,
unlock the center differential. To prevent damage to the
center differential lock system, do not push the center
differential lock switch when the vehicle is cornering or
when its wheels are spinning freely of f the ground. If the
indicator light does not go off when unlocking the
center differential, drive straight ahead while
accelerating or decelerating, or drive in reverse.
REAR VIEW MONITOR SYSTEM
The rear view monitor system assists the driver by
displaying an image of the rear of the vehicle while
backing up. The displayed image on the screen is a
horizontally reversed mirror image of the inside rear view
mirror.
To display the rear view image on the screen, place the
selector lever in the “R” position when the ignition switch
is in the “ON” position.
If you move the selector lever out of the “R” position, the screen
returns to the previous screen. Operating another function of
the navigation system will display another screen.
The rear view monitor system is a supplemental device
intended to assist back up. When backing up, be sure to check
behind and all around the vehicle visually.

STARTING AND DRIVING
376If the brake pedal is depressed while the vehicle stability
control system is active, the brake pedal will become hard at
an earlier position than usual. However, the brakes will
respond to the pedal force if depressed further.
The slip indicator light comes on for a few seconds when the
ignition key is turned to “ON”. If the indicator light does not
come on when the ignition is turned on, contact your Lexus
dealer.
Pushing the center differential lock switch automatically
turns
the vehicle stability control system off. At this time,
the “VSC OFF” indicator comes on with the center
differential lock indicator light.
“VSC OFF” indicator light comes on for a few seconds when
the ignition key is turned to “ON”. It will come on again when
you push the center differential lock switch to turn off the
system. In the following cases, contact your Lexus dealer:

The indicator light does not come on when the ignition key
is turned “ON”.
 The indicator light remains on after the ignition is turned on.
 The indicator light comes on when the system is on while
driving.
NOTICE
Make sure that the center dif ferential lock indicator light
goes off before normal driving.
“VSC TRAC” warning light
This light warns that when there is a problem somewhere in the
following.

STARTING AND DRIVING
395
LIMITEDSLIP DIFFERENTIAL
Your Lexus is equipped with a limited−slip center differential
(transfer).
If one wheel — either front or rear — begins to spin, the transfer
(limited −slip center differential) is designed to aid traction by
automatically transmitting driving force to the wheels on the
other drive axle. It transmits driving force to the front wheels
if a rear wheel spins, and to the rear wheels if a front wheel
spins.
CAUTION
Do not start or run the engine while your vehicle is
supported by a jack. The vehicle could be driven off the
jack and could pose a danger or result in serious injury.
NOTICE
Use only a spare tire of the same size, construction and
load capacity as the original tires on your Lexus
because damage to the limitedslip differential could
possibly occur with another tire type.