2004 Lexus GX470 differential

For detailed information, refer to the description given in each Section\
.
PICTORIAL INDEX
x
Page
1Driving position memory switches208
. . . . . . . . . . .
2Power window switches 48
. . . . . . . . . . . . . . . . . . . . . . .
3Power door lock switch 24
. . . . . . . . . . . . . . . . . . . . . . .
4Window lock switch 49
. . . . . . . . . . . . . . . . . . . . . . . . . . .
5Power rear view mirror control switches 214 . . . . . .
6Side vents 239
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
7Headlight, turn signal and
fog light switches 33, 36, 37 . . . . . . . . . . . . . . . . . . . . . .
8Wiper and washer switch 37
. . . . . . . . . . . . . . . . . . . . . .
9Center vents 239
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
10Emergency flasher switch 51
. . . . . . . . . . . . . . . . . . . . .
11Car audio 246
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
12Multi-information display 65
. . . . . . . . . . . . . . . . . . . . . .
13Automatic air conditioning controls 226
. . . . . . . . . .
14Rear window defogger switch 45
. . . . . . . . . . . . . . . . . .
15Front passenger's seat belt reminder light 56 . . . . . .
16Glove box 86
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
17Ashtray 82
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . \
. .
18Cigarette lighter 82
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
19Seat heater switches 53
. . . . . . . . . . . . . . . . . . . . . . . . . .
20Four-wheel drive control lever 386
. . . . . . . . . . . . . . . Page
21Automatic transmission selector lever 378
. . . . . . . .
22Parking brake lever 376
. . . . . . . . . . . . . . . . . . . . . . . . .
23Center differential lock switch 386
. . . . . . . . . . . . . . .
24Power outlet (12 VDC) 83
. . . . . . . . . . . . . . . . . . . . . . . . .
25Downhill assist control switch 410
. . . . . . . . . . . . . . .
26Electronic modulated suspension
control switch 404 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
27Rear height control air suspension
switches 397 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
28Ignition switch 374
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
292nd STRTº (second start) switch 386
. . . . . . . . . . . .
30Tire pressure warning system
selector switch 427 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
31Cruise control switch 394
. . . . . . . . . . . . . . . . . . . . . . .
32Steering switches 268
. . . . . . . . . . . . . . . . . . . . . . . . . . .
33Instrument panel light control dial 76
. . . . . . . . . . . . . .
34Hood lock release lever 102
. . . . . . . . . . . . . . . . . . . . .
35Fuel filler door opener 103
. . . . . . . . . . . . . . . . . . . . . . .
36RSCA OFFº (roll sensing of curtain
shield airbags off) switch 183 . . . . . . . . . . . . . . . . . . . .
37Outside rear view mirror defogger switch 47 . . . . . . .
38Power outlet (115 VAC) main switch 85
. . . . . . . . . . . .

For detailed information, refer to the description given in each Section\
.
PICTORIAL INDEX
xii
Page
1Driving position memory switches208
. . . . . . . . . . .
2Power window switches 48
. . . . . . . . . . . . . . . . . . . . . . .
3Power door lock switch 24
. . . . . . . . . . . . . . . . . . . . . . .
4Window lock switch 49
. . . . . . . . . . . . . . . . . . . . . . . . . . .
5Power rear view mirror control switches 214 . . . . . .
6Side vents 239
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
7Headlight, turn signal and
fog light switches 33, 36, 37 . . . . . . . . . . . . . . . . . . . . . .
8Wiper and washer switch 37
. . . . . . . . . . . . . . . . . . . . . .
9Center vents 239
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
10Emergency flasher switch 51
. . . . . . . . . . . . . . . . . . . . .
11Rear view monitor/navigation system display
(See the separate Navigation System Owner's Manualº.) 390 . . . . . . . . . . . . . . . . . . . . . . . . . .
12Multi-information display 65
. . . . . . . . . . . . . . . . . . . . . .
13Automatic air conditioning controls 226
. . . . . . . . . .
14Rear window defogger switch 45
. . . . . . . . . . . . . . . . . .
15Front passenger's seat belt reminder light 56 . . . . . .
16Glove box 86
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
17Car audio 246
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
18Ashtray 82
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . \
. .
19Cigarette lighter 82
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
20Seat heater switches 53
. . . . . . . . . . . . . . . . . . . . . . . . . .
21Four-wheel drive control lever 386
. . . . . . . . . . . . . . . Page
22Automatic transmission selector lever 378
. . . . . . . .
23Parking brake lever 376
. . . . . . . . . . . . . . . . . . . . . . . . .
24Center differential lock switch 386
. . . . . . . . . . . . . . .
25Power outlet (12 VDC) 83
. . . . . . . . . . . . . . . . . . . . . . . . .
26Downhill assist control switch 410
. . . . . . . . . . . . . . .
27Electronic modulated suspension
control switch 404 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
28Rear height control air suspension
switches 397 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
29Ignition switch 374
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
302nd STRTº (second start) switch 386
. . . . . . . . . . . .
31Tire pressure warning system
selector switch 427 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
32Cruise control switch 394
. . . . . . . . . . . . . . . . . . . . . . .
33Speech command switch
See the separate
. . . . . . . . .
Navigation System Owner's Manualº.
34Steering switches 268
. . . . . . . . . . . . . . . . . . . . . . . . . . .
35Instrument panel light control dial 76
. . . . . . . . . . . . . .
36Hood lock release lever 102
. . . . . . . . . . . . . . . . . . . . .
37Fuel filler door opener 103
. . . . . . . . . . . . . . . . . . . . . . .
38RSCA OFFº (roll sensing of curtain
shield airbags off) switch 183 . . . . . . . . . . . . . . . . . . . .
39Outside rear view mirror defogger switch 47 . . . . . . .
40Power outlet (115 VAC) main switch 85
. . . . . . . . . . . .

For detailed information, refer to the description given in each Section\
.
PICTORIAL INDEX
xiv
Page
1Automatic transmission second start indicator light 386 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2Unengaged Parkº warning light 59
. . . . . . . . . . . . . . .
3Automatic transmission fluid temperature
warning light 59 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4Low washer fluid warning light 63
. . . . . . . . . . . . . . . . .
5Automatic transmission indicator lights 378 . . . . . .
6Driver's seat belt reminder light 55
. . . . . . . . . . . . . . . .
7Turn signal indicator light 36
. . . . . . . . . . . . . . . . . . . . .
8Brake system warning light 54
. . . . . . . . . . . . . . . . . . . .
9Headlight high beam indicator light 36
. . . . . . . . . . . .
10Anti-lock brake system warning light 58
. . . . . . . . . . .
11Open door warning light 59
. . . . . . . . . . . . . . . . . . . . . . .
12Tachometer 51
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
13Headlight indicator light 33
. . . . . . . . . . . . . . . . . . . . . . .
14Cruise control indicator light 394
. . . . . . . . . . . . . . . .
15Engine oil replacement reminder light 62
. . . . . . . . . .
16Slip indicator light 406, 408, 411, 413
. . . . . . . . . . . . .
17Low engine oil pressure warning light 61
. . . . . . . . . .
18Discharge warning light 60
. . . . . . . . . . . . . . . . . . . . . . . Page
19Engine coolant temperature gauge
49
. . . . . . . . . . . . .
20Malfunction indicator lamp 57
. . . . . . . . . . . . . . . . . . . .
21Vehicle stability control system off
indicator light 408 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
22Roll sensing of curtain shield airbags off
indicator light 183 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
23Kinetic dynamic suspension system
warning light 60 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
24Center differential lock indicator light 386
. . . . . . . .
25Vehicle stability control system and active
traction control system warning light 60 . . . . . . . . . . .
26Downhill assist control system
indicator light 410 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
27Rear height control indicator lights 403
. . . . . . . . . . .
28Security indicator light 14, 29
. . . . . . . . . . . . . . . . . . . .
29SRS warning light 56
. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
30Trip meter reset knob 52
. . . . . . . . . . . . . . . . . . . . . . . . .
31Odometer and trip meter 52
. . . . . . . . . . . . . . . . . . . . . .
32Low fuel level warning light 62
. . . . . . . . . . . . . . . . . . . .
33Low tire pressure warning light 62
. . . . . . . . . . . . . . . .
34Fuel gauge 48
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

For detailed information, refer to the description given in each Section\
.
PICTORIAL INDEX
xvi
Page
1Automatic transmission second start indicator light 386 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2Unengaged Parkº warning light 59
. . . . . . . . . . . . . . .
3Automatic transmission fluid temperature
warning light 59 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4Low washer fluid warning light 63
. . . . . . . . . . . . . . . . .
5Automatic transmission indicator lights 378 . . . . . .
6Driver's seat belt reminder light 55
. . . . . . . . . . . . . . . .
7Turn signal indicator light 36
. . . . . . . . . . . . . . . . . . . . .
8Brake system warning light 54
. . . . . . . . . . . . . . . . . . . .
9Headlight high beam indicator light 36
. . . . . . . . . . . .
10Anti-lock brake system warning light 58
. . . . . . . . . . .
11Open door warning light 59
. . . . . . . . . . . . . . . . . . . . . . .
12Tachometer 51
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
13Tail light indicator light 33
. . . . . . . . . . . . . . . . . . . . . . . .
14Cruise control indicator light 394
. . . . . . . . . . . . . . . .
15Slip indicator light 406, 408, 411, 413
. . . . . . . . . . . . .
16Low engine oil pressure warning light 61
. . . . . . . . . .
17Discharge warning light 60
. . . . . . . . . . . . . . . . . . . . . . .
18Engine coolant temperature gauge 49
. . . . . . . . . . . . . Page
19Malfunction indicator lamp
57
. . . . . . . . . . . . . . . . . . . .
20Vehicle stability control system off
indicator light 408 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
21Roll sensing of curtain shield airbags off
indicator light 183 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
22Kinetic dynamic suspension system
warning light 60 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
23Center differential lock indicator light 386
. . . . . . . .
24Vehicle stability control system and active
traction control system warning light 60 . . . . . . . . . . .
25Downhill assist control system
indicator light 410 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
26Rear height control indicator lights 403
. . . . . . . . . . .
27Security indicator light 14, 29
. . . . . . . . . . . . . . . . . . . .
28SRS warning light 56
. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
29Trip meter reset knob 52
. . . . . . . . . . . . . . . . . . . . . . . . .
30Odometer and trip meter 52
. . . . . . . . . . . . . . . . . . . . . .
31Low fuel level warning light 62
. . . . . . . . . . . . . . . . . . . .
32Low tire pressure warning light 62
. . . . . . . . . . . . . . . .
33Fuel gauge 48
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

SECTION 3 ± 1
368
STARTING AND DRIVING
Starting and driving
Three-way catalytic converters369
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . . . . . . . . . . . . . . .
Engine exhaust caution 372
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . . . . . . . . . . . . . . . . . . . . . .
Before starting the engine 374
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . . . . . . . . . . . . . . . . . . . .
Ignition switch with steering lock 374
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . . . . . . . . . . . . . . .
Parking brake 376
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
How to start the engine 377
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . . . . . . . . . . . . . . . . . . . . . .
Automatic transmission 378
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . . . . . . . . . . . . . . . . . . . . . .
Four-wheel drive system 386
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . . . . . . . . . . . . . . . . . . . . .
Rear view monitor system 390
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . . . . . . . . . . . . . . . . . . . .
Cruise control 394
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Rear height control air suspension 397
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . . . . . . . . . . . . .
Electronic modulated suspension 404
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . . . . . . . . . . . . . .
Active traction control system 405
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . . . . . . . . . . . . . . . . .
Vehicle stability control system 407
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . . . . . . . . . . . . . . . .
Downhill assist control system 410
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . . . . . . . . . . . . . . . .
Hill-start assist control system 413
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . . . . . . . . . . . . . . . .
Brake system 415
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Tire pressure warning system 419
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . . . . . . . . . . . . . . . . .
Brake pad wear limit indicators 428
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . . . . . . . . . . . . . . . .
Limited-slip differential 429
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . . . . . . . . . . . . . . . . . . . . . . .

STARTING AND DRIVING
386
(g) If you cannot shift the selector lever
If you cannot shift the selector lever even though the brake
pedal is depressed, use the shift lock override button. For
instructions, see If you cannot shift automatic transmission
selector leverº on page 494.
(h) Driving in second start mode
In the second start mode, the transmission system shifts up
from second gear. Use this mode when starting your vehicle
in sand, mud, ice or snow.
To set the second start mode, push the 2nd STRTº switch. In
the second start mode, the 2nd STRTº indicator light comes
on. To cancel the second start mode, push the 2nd STRTº
switch once again.
FOUR-WHEEL DRIVE SYSTEM
(a) Four-wheel drive control
Use the four-wheel drive control lever and center
differential lock button to select the following transfer and
center differential modes.
The Hº and Lº position of the four-wheel drive control lever
provides either lock or unlock mode of the center differential
depending on the center differential lock button position.
Use the center differential 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 OFFº indicator lights come on
because the function that controls engine performance
interferes with the process of freeing your wheels.

STARTING AND DRIVING
387
NOTICE
As soon as the center differential lock switch is turnedon, the VSC OFFº indicator light comes on. After thewheels are out of the ditch or off the slippery or bumpysurface, turn the center differential lock switch off.Make sure the center differential lock indicator light andvehicle stability control system off indicator light turnoff.
Hº (high speed position, center differential unlocked):
Lever at Hº, center differential lock button 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.
Hº (high speed position, center differential locked): Lever
at Hº, center differential lock button pushed in
Use this for greater traction when you experience a loss of
power, such as wheel slipping, in the center differential unlock
mode.
Nº (neutral position): Lever at Nº
No power is delivered to the wheels. The vehicle must be
stopped. Lº (low speed position, center differential unlocked):
Lever at Lº, center differential lock button 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 Lº
(low position, center differential locked) mode.
Lº (low speed position, center differential locked):
Lever
at Lº, center differential lock button pushed in
Use this for maximum power and traction. Use this for hard
pulling in si tuations the vehicle cannot negotiate even in the Lº
(low speed position, center differential unlocked) mode. Also,
using this mode when driving down steep of f-road inclines will
help contribute to increased vehicle stability.

STARTING AND DRIVING
388The 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 controlº on page 394. If the indicator light does not go off when you push out the
center differential lock button, drive straight ahead while
accelerating or decelerating, or drive in reverse.
See (b) Shifting procedureº for further instructions.
Advice for driving on slippery roads in Lº (low speed
position) mode
If you shift the four-wheel drive control lever to Lº, the
automatic transmission lever to 2º when you drive in steep
off-road areas, the output of the brake can be controlled
effectively by the active traction control system, which assists
the driver to control the driving power of 4 wheels.
Use the Lº position of the automatic transmission lever for
maximum power and traction when your wheels get stuck or
when you drive down a steep incline. In the following cases,
the out put of the brake can be controlled by the active traction
control system if the engine speed is under 3,000 rpm
(normally engine speed is under 3,000 rpm when the wheels
get unstuck).

The four-wheel drive control lever in the Lº position and the
automatic transmission lever in the Lº position or the
automatic transmission lever in the Dº or 2º with the
transmission downshifting to the first gear.
 The four-wheel drive control lever in the Lº position and the
automatic transmission lever in the Rº position
(As for the automatic transmission lever positions, see
Automatic transmissionº on page 378.)