2004 Lexus GX470 automatic transmission

For detailed information, refer to the description given in each Section.
PICTORIAL INDEX
x
Page
1Driving position memory switches 200. . . . . . . . . . .
2Power window switches 43. . . . . . . . . . . . . . . . . . . . . . .
3Power door lock switch 22. . . . . . . . . . . . . . . . . . . . . . .
4Window lock switch 44. . . . . . . . . . . . . . . . . . . . . . . . . . .
5Power rear view mirror control switches 205. . . . . .
6Side vents 228. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
7Headlight, turn signal and
fog light switches 29, 31, 32. . . . . . . . . . . . . . . . . . . . . .
8Wiper and washer switch 32. . . . . . . . . . . . . . . . . . . . . .
9Center vents 228. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
10Emergency flasher switch 46. . . . . . . . . . . . . . . . . . . . .
11Car audio 235. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
12Multi-information display 67. . . . . . . . . . . . . . . . . . . . . .
13Automatic air conditioning controls 215. . . . . . . . . .
14Rear window defogger switch 40. . . . . . . . . . . . . . . . . .
15Front passenger's seat belt reminder light 58. . . . . .
16Glove box 84. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
17Ashtray 79. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
18Cigarette lighter 79. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
19Seat heater switches 47. . . . . . . . . . . . . . . . . . . . . . . . . . Page
20Four-wheel drive control lever 373. . . . . . . . . . . . . . .
21Automatic transmission selector lever 365. . . . . . . .
22Parking brake lever 363. . . . . . . . . . . . . . . . . . . . . . . . .
23Center differential lock switch 373. . . . . . . . . . . . . . .
24Power outlet (12 VDC) 81. . . . . . . . . . . . . . . . . . . . . . . . .
25Downhill assist control switch 393. . . . . . . . . . . . . . .
26Electronic modulated suspension
control switch 387. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
27Rear height control air suspension
switches 380. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
28Ignition switch 361. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
292nd STRTº switch 373. . . . . . . . . . . . . . . . . . . . . . . . . .
30Cruise control switch 377. . . . . . . . . . . . . . . . . . . . . . .
31Steering pad switches 256. . . . . . . . . . . . . . . . . . . . . . .
32Hood lock release lever 99. . . . . . . . . . . . . . . . . . . . . . .
33Fuel filler door opener 100. . . . . . . . . . . . . . . . . . . . . . .
34Instrument panel light control dial 73. . . . . . . . . . . . . .
35Outside rear view mirror defogger switch 42. . . . . . .
36Power outlet (115 VAC) main switch 81. . . . . . . . . . . .

For detailed information, refer to the description given in each Section.
PICTORIAL INDEX
xii
Page
1Automatic transmission second start
indicator light 373. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2Unengaged Parkº warning light 61. . . . . . . . . . . . . . .
3Automatic transmission fluid temperature
warning light 62. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4Low washer fluid warning light 65. . . . . . . . . . . . . . . . .
5Automatic transmission indicator lights 365. . . . . .
6Driver's seat belt reminder light 58. . . . . . . . . . . . . . . .
7Turn signal indicator light 31. . . . . . . . . . . . . . . . . . . . .
8Brake system warning light 57. . . . . . . . . . . . . . . . . . . .
9Headlight high beam indicator light 31. . . . . . . . . . . .
10ABSº warning light 60. . . . . . . . . . . . . . . . . . . . . . . . . .
11Open door warning light 61. . . . . . . . . . . . . . . . . . . . . . .
12Tachometer 54. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
13Headlight indicator light 29. . . . . . . . . . . . . . . . . . . . . . .
14Cruise control indicator light 377. . . . . . . . . . . . . . . .
15Engine oil replacement reminder light 64. . . . . . . . . .
16Engine coolant temperature gauge 52. . . . . . . . . . . . . Page
17Discharge warning light 63. . . . . . . . . . . . . . . . . . . . . . .
18Low engine oil pressure warning light 64. . . . . . . . . .
19Malfunction indicator lamp 59. . . . . . . . . . . . . . . . . . . .
20Slip indicator light 389, 391, 394, 396. . . . . . . . . . . . .
21Vehicle stability control system off
indicator light 391. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
22Center differential lock indicator light 373. . . . . . . .
23VSC TRACº warning light 63. . . . . . . . . . . . . . . . . . . . .
24Downhill assist control system
indicator light 393. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
25Rear height control indicator lights 386. . . . . . . . . . .
26Security indicator light 14, 26. . . . . . . . . . . . . . . . . . . .
27SRS warning light 59. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
28Trip meter reset knob 55. . . . . . . . . . . . . . . . . . . . . . . . .
29Odometer and trip meter 55. . . . . . . . . . . . . . . . . . . . . .
30Low fuel level warning light 65. . . . . . . . . . . . . . . . . . . .
31Fuel gauge 51. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

BASIC OPERATION
1
QUICK REFERENCE
Quick reference
Driver's seat2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Steering wheel2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Automatic transmission3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Headlight and turn signal switch4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Wiper switch5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

BPY011
BPY019
Shift while pressing the brake pedal.
(Ignition switch must be in the ONº position.)
OPERATION OF SELECTOR LEVER
SELECTOR LEVER POSITION
P:Parking, engine starting and key removal
position
R:Reverse position
N:Neutral position
D:Normal driving position
(shifting into overdrive possible)
4:Position for engine braking
(shifting into overdrive not possible)
3, 2:Position for more powerful engine braking
L:Position for maximum engine braking
NOTE: When the cruise control is being used, even if you downshift from Dº to 4º, engine braking will not be enabled
because the cruise control is not cancelled. For the operation to decrease the vehicle speed, see page 379.
QUICK REFERENCE
3
3. AUTOMATIC TRANSMISSION

GAUGES, METERS AND SERVICE REMINDER INDICATORS
59
(d) SRS Warning Light
The indicator comes on when the ignition key is turned to
the ONº position. It goes off after about 6 seconds. This
means the SRS airbags and front seat belt pretensioners
are operating properly.
This warning light system monitors the airbag sensor
assembly, front airbag sensors, side and curtain shield airbag
sensor assemblies, curtain shield airbag sensor assemblies,
driver's seat position sensor, driver's seat belt buckle switch,
front seat belt pretensioner assemblies, inflators, warning light,
interconnecting wiring and power sources.
If either of the following conditions occurs, this indicates a
malfunction somewhere in the parts monitored by the warning
light system. Contact your Lexus dealer as soon as possible
to service the vehicle.
When the ignition key is turned to the ONº position, the light
does not come on, remains on or flashes.
The light comes on or starts flashing while driving.
If the light stays on, it indicates that the driver and front
passenger airbags have a problem. If the light flashes, the side
and curtain shield airbags and/or seat belt pretensioners have
a problem.
(e) Malfunction Indicator Lamp
This lamp comes on when the ignition key is turned to the
ONº position and goes off after the engine starts. This
means that the warning light system is operating properly.
If the lamp remains on, or the lamp comes on while driving,
first check the followings.
Empty fuel tank
If the fuel tank is empty, refuel immediately.
Loose fuel tank cap
If the fuel tank cap is loose, securely tighten it.
These cases are temporary malfunctions. The malfunction
indicator lamp will go off after taking several driving trips.
If the lamp will not go off even after the several trips, contact
your Lexus dealer as soon as possible.
If the fuel tank is not empty or the fuel tank cap is not
loose...
There is a problem somewhere in the engine, emission
control system, electronic throttle control system, automatic
transmission electrical system or warning light system itself.
Contact your Lexus dealer as soon as possible to service the
vehicle.
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.

GAUGES, METERS AND SERVICE REMINDER INDICATORS
62
(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 Pº 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.

STEERING WHEEL AND MIRRORS
205
CAUTION
Do not adjust the mirror while the vehicle is moving.
Doing so may cause the driver to mishandle the
vehicle and an accident may occur, resulting in death
or serious injuries.
Since the mirror surfaces can get hot, do not touch
them when the outside rear view mirror defogger
switch is on.
Power rear view mirror control

1Master switch2Control switch
To adjust the power rear view mirror, first place the master
switch at Lº (left) or Rº (right), and push the control
switch on the desired side.
The power rear view mirrors can be adjusted when the key is
in the ACCº or ONº position.
When the automatic transmission selector lever is shifted
into Rº position with the master switch in the Lº or Rº
position, the rear view mirrors automatically down to help
backing up.
The mirrors return to the previous position in the following
operations.
Shift the transmission lever out of Rº position.
Place the master switch in the neutral position.

SECTION 3 ± 1
355
STARTING AND DRIVING
Starting and driving
Three-way catalytic converters356 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Engine exhaust caution359 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Before starting the engine361 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Ignition switch with steering lock361 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Parking brake363 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
How to start the engine363 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Automatic transmission365 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Four-wheel drive system373 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Cruise control377 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Rear height control air suspension380 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Electronic modulated suspension387 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Active traction control system388 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Vehicle stability control system390 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Downhill assist control system393 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Hill-start assist control system396 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Brake system398 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Brake pad wear limit indicators402 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Limited-slip differential403 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .