2005 Lexus GX470 transmission

IMPORTANT INFORMATION ABOUT YOUR LEXUS
iii
Event data recorder
Your vehicle has computers that monitor and control certain
aspects of your vehicle. These computers assist in driving and
maintaining optimal vehicle performance. Besides storing
data useful for troubleshooting, there is a system to record data
in a crash or a near car crash event. This is called an Event
Data Recorder (EDR).
The SRS airbag sensor assembly contains the EDR. In a
crash or a near car crash event, this device may record some
or all of the following information:

Engine speed

Whether the brake pedal was applied or not

Vehicle speed

To what extent the accelerator pedal was depressed

Position of the transmission selector lever

Whether the driver and front passenger wore the seat belts
or not

Driver's seat position

Front passenger's occupant classification

SRS airbag deployment data

SRS airbag system diagnostic data If your vehicle is equipped with a vehicle stability control (VSC)
system,
its Electronic Control Unit (ECU) may contain another
EDR. There are a variety of driving situations which include
activating the VSC under which the VSC EDR will record
certain information. The VSC EDR may record some or all of
the following information:

Behavior of the vehicle

Steering wheel angle

Vehicle speed

To what extent the accelerator pedal was depressed

To what extent the brake pedal was applied

To what extent the ECU controlled the condition of the 4
wheels

Vehicle stability control system diagnostic data
The information above is intended to be used for the purpose
of improving vehicle safety performance. Unlike general data
recorders, the EDR does not record sound data such as
conversation between passengers.

For detailed information, refer to the description given in each Section\
.
PICTORIAL INDEX
xiii
Page
1Driving position memory switches225
. . . . . . . . . . .
2Power window switches 48
. . . . . . . . . . . . . . . . . . . . . . .
3Power door lock switch 24
. . . . . . . . . . . . . . . . . . . . . . .
4Window lock switch 49
. . . . . . . . . . . . . . . . . . . . . . . . . . .
5Power rear view mirror control switches 232 . . . . . .
6Side vents 256
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
7Headlight, turn signal and
fog light switches 33, 36, 37 . . . . . . . . . . . . . . . . . . . . . .
8Wiper and washer switches 37
. . . . . . . . . . . . . . . . . . . .
9Center vents 256
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
10Emergency flasher switch 51
. . . . . . . . . . . . . . . . . . . . .
11Audio system 264
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
12Multi±information display 75
. . . . . . . . . . . . . . . . . . . . . .
13Automatic air conditioning controls 243
. . . . . . . . . .
14Rear window defogger switch 45
. . . . . . . . . . . . . . . . . .
15Front passenger's seat belt reminder light 65 . . . . . .
16ªAIRBAG ONº and ªAIRBAG OFFº
indicator lights 194 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
17Glove box 96
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
18Ashtray 92
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . \
. .
19Cigarette lighter 92
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
20Seat heater switches 53
. . . . . . . . . . . . . . . . . . . . . . . . . . Page
21Four±wheel drive control lever
411
. . . . . . . . . . . . . . . .
22Automatic transmission selector lever 403 . . . . . . . .
23Parking brake lever 400
. . . . . . . . . . . . . . . . . . . . . . . . .
24Center differential lock switch 411
. . . . . . . . . . . . . . . .
25Power outlet (12 VDC) 93
. . . . . . . . . . . . . . . . . . . . . . . . .
26Downhill assist control switch 436
. . . . . . . . . . . . . . .
27Electronic modulated suspension
control switch 429 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
28Rear height control air suspension
switches 422 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
29Ignition switch 398
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
30ª2nd STRTº (second start) switch 411
. . . . . . . . . . . . .
31Tire pressure warning system
selector switch 455 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
32Cruise control switch 419
. . . . . . . . . . . . . . . . . . . . . . .
33Audio remote control switches 285
. . . . . . . . . . . . . . .
34Instrument panel light control dial 86
. . . . . . . . . . . . . .
35Hood lock release lever 112
. . . . . . . . . . . . . . . . . . . . . .
36Fuel filler door opener 113
. . . . . . . . . . . . . . . . . . . . . . . .
37ªRSCA OFFº (roll sensing of curtain
shield airbags off) switch 199 . . . . . . . . . . . . . . . . . . . .
38Outside rear view mirror defogger switch 47 . . . . . . .
39Power outlet (115 VAC) main switch 95
. . . . . . . . . . . .

For detailed information, refer to the description given in each Section\
.
PICTORIAL INDEX
xv
Page
1Driving position memory switches225
. . . . . . . . . . .
2Power window switches 48
. . . . . . . . . . . . . . . . . . . . . . .
3Power door lock switch 24
. . . . . . . . . . . . . . . . . . . . . . .
4Window lock switch 49
. . . . . . . . . . . . . . . . . . . . . . . . . . .
5Power rear view mirror control switches 232 . . . . . .
6Side vents 256
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
7Headlight, turn signal and
fog light switches 33, 36, 37 . . . . . . . . . . . . . . . . . . . . . .
8Wiper and washer switches 37
. . . . . . . . . . . . . . . . . . . .
9Center vents 256
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
10Emergency flasher switch 51
. . . . . . . . . . . . . . . . . . . . .
11Rear view monitor/navigation system display
including air conditioning controls and audio
system(For the navigation system, see the separate ªNavigation System Owner's Manualº.) 415 . . . . . . .
12Multi±information display 75
. . . . . . . . . . . . . . . . . . . . . .
13Automatic air conditioning controls
See the separate
. . . . . . . . .
ªNavigation System Owner's Manualº.
14Rear window defogger switch 45
. . . . . . . . . . . . . . . . . .
15Front passenger's seat belt reminder light 65 . . . . . .
16ªAIRBAG ONº and ªAIRBAG OFFº
indicator lights 194 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
17Glove box 96
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
18Audio system 264
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
19Ashtray 92
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . \
. .
20Cigarette lighter 92
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page
21Seat heater switches
53
. . . . . . . . . . . . . . . . . . . . . . . . . .
22Four±wheel drive control lever 411
. . . . . . . . . . . . . . . .
23Automatic transmission selector lever 403 . . . . . . . .
24Parking brake lever 400
. . . . . . . . . . . . . . . . . . . . . . . . .
25Center differential lock switch 411
. . . . . . . . . . . . . . . .
26Power outlet (12 VDC) 93
. . . . . . . . . . . . . . . . . . . . . . . . .
27Downhill assist control switch 436
. . . . . . . . . . . . . . .
28Electronic modulated suspension
control switch 429 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
29Rear height control air suspension
switches 422 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
30Ignition switch 398
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
31ª2nd STRTº (second start) switch 411
. . . . . . . . . . . . .
32Tire pressure warning system
selector switch 455 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
33Cruise control switch 419
. . . . . . . . . . . . . . . . . . . . . . .
34Speech command switch
See the separate
. . . . . . . . .
ªNavigation System Owner's Manualº.
35Audio remote control switches 285
. . . . . . . . . . . . . . .
36Instrument panel light control dial 86
. . . . . . . . . . . . . .
37Hood lock release lever 112
. . . . . . . . . . . . . . . . . . . . . .
38Fuel filler door opener 113
. . . . . . . . . . . . . . . . . . . . . . . .
39ªRSCA OFFº (roll sensing of curtain
shield airbags off) switch 199 . . . . . . . . . . . . . . . . . . . .
40Outside rear view mirror defogger switch 47 . . . . . . .
41Power outlet (115 VAC) main switch 95
. . . . . . . . . . . .

For detailed information, refer to the description given in each Section\
.
PICTORIAL INDEX
xvii
Page
1Automatic transmission second start indicator light 411 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2Unengaged ªParkº warning light 68
. . . . . . . . . . . . . . .
3Automatic transmission fluid temperature
warning light 69 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4Low washer fluid warning light 73
. . . . . . . . . . . . . . . . .
5Automatic transmission indicator lights 403 . . . . . .
6Driver's seat belt reminder light 65
. . . . . . . . . . . . . . . .
7Turn signal indicator light 36
. . . . . . . . . . . . . . . . . . . . .
8Brake system warning light 64
. . . . . . . . . . . . . . . . . . . .
9Headlight high beam indicator light 36
. . . . . . . . . . . .
10Anti±lock brake system warning light 67
. . . . . . . . . . .
11Open door warning light 68
. . . . . . . . . . . . . . . . . . . . . . .
12Tachometer 60
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
13Headlight indicator light 33
. . . . . . . . . . . . . . . . . . . . . . .
14Cruise control indicator light 419
. . . . . . . . . . . . . . . .
15Engine oil replacement reminder light 72
. . . . . . . . . .
16Slip indicator light 431, 433, 437, 439
. . . . . . . . . . . . .
17Low engine oil pressure warning light 71
. . . . . . . . . .
18Discharge warning light 70
. . . . . . . . . . . . . . . . . . . . . . . Page
19Engine coolant temperature gauge
58
. . . . . . . . . . . . .
20Malfunction indicator lamp 66
. . . . . . . . . . . . . . . . . . . .
21Vehicle stability control system off
indicator light 434 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
22Roll sensing of curtain shield airbags off
indicator light 199 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
23Kinetic dynamic suspension system
warning light 70 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
24Center differential lock indicator light 411
. . . . . . . . .
25Vehicle stability control system and active
traction control system warning light 70 . . . . . . . . . . .
26Downhill assist control system
indicator light 436 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
27Height control indicator lights 428
. . . . . . . . . . . . . . .
28Security indicator light 14, 29
. . . . . . . . . . . . . . . . . . . .
29SRS warning light 66
. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
30Trip meter reset knob 61
. . . . . . . . . . . . . . . . . . . . . . . . .
31Odometer and trip meter 61
. . . . . . . . . . . . . . . . . . . . . .
32Low fuel level warning light 72
. . . . . . . . . . . . . . . . . . . .
33Low tire pressure warning light 72
. . . . . . . . . . . . . . . .
34Fuel gauge 57
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

For detailed information, refer to the description given in each Section\
.
PICTORIAL INDEX
xix
Page
1Automatic transmission second start indicator light 411 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2Unengaged ªParkº warning light 68
. . . . . . . . . . . . . . .
3Automatic transmission fluid temperature
warning light 69 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4Low washer fluid warning light 73
. . . . . . . . . . . . . . . . .
5Automatic transmission indicator lights 403 . . . . . .
6Driver's seat belt reminder light 65
. . . . . . . . . . . . . . . .
7Turn signal indicator light 36
. . . . . . . . . . . . . . . . . . . . .
8Brake system warning light 64
. . . . . . . . . . . . . . . . . . . .
9Headlight high beam indicator light 36
. . . . . . . . . . . .
10Anti±lock brake system warning light 67
. . . . . . . . . . .
11Open door warning light 68
. . . . . . . . . . . . . . . . . . . . . . .
12Tachometer 60
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
13Tail light indicator light 33
. . . . . . . . . . . . . . . . . . . . . . . .
14Cruise control indicator light 419
. . . . . . . . . . . . . . . .
15Slip indicator light 431, 433, 437, 439
. . . . . . . . . . . . .
16Low engine oil pressure warning light 71
. . . . . . . . . .
17Discharge warning light 70
. . . . . . . . . . . . . . . . . . . . . . .
18Engine coolant temperature gauge 58
. . . . . . . . . . . . . Page
19Malfunction indicator lamp
66
. . . . . . . . . . . . . . . . . . . .
20Vehicle stability control system off
indicator light 434 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
21Roll sensing of curtain shield airbags off
indicator light 199 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
22Kinetic dynamic suspension system
warning light 70 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
23Center differential lock indicator light 411
. . . . . . . . .
24Vehicle stability control system and active
traction control system warning light 70 . . . . . . . . . . .
25Downhill assist control system
indicator light 436 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
26Height control indicator lights 428
. . . . . . . . . . . . . . .
27Security indicator light 14, 29
. . . . . . . . . . . . . . . . . . . .
28SRS warning light 66
. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
29Trip meter reset knob 61
. . . . . . . . . . . . . . . . . . . . . . . . .
30Odometer and trip meter 61
. . . . . . . . . . . . . . . . . . . . . .
31Low fuel level warning light 72
. . . . . . . . . . . . . . . . . . . .
32Low tire pressure warning light 72
. . . . . . . . . . . . . . . .
33Fuel gauge 57
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

BASIC OPERATION
1
QUICK REFERENCE
Quick reference
Driver's seat2
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Steering wheel 2
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Automatic transmission 3
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . . . . . . . . . . . . . . . . . . . . . . . .
Headlight and turn signal switch 4
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . . . . . . . . . . . . . . . . .
Wiper and washer switch 5
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . . . . . . . . . . . . . . . . . . . . . . .

BPY011
BPY019
Shift while pressing the brake pedal.
(Ignition switch must be in the ªONº 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 \
ªDº to ª4º, engine braking will not be enabled
because the cruise control is not cancelled. For the operation to decre\
ase the vehicle speed, see page 421.
QUICK REFERENCE
3
3. AUTOMATIC TRANSMISSION

GAUGES, METERS AND SERVICE REMINDER INDICATORS
66
(d) SRS Warning Light
The indicator comes on when the ignition key is turned to
the ªONº 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 passenger occupant classification system, ªAIRBAG ONº
indicator light, ªAIRBAG OFFº indicator light, front passenger's
seat belt buckle switch, front seat belt pretensioner
assemblies, inflators, warning light, ªRSCA OFFº indicator
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.
 The light does not come on when the ignition key is turned
to the ªONº position or remains on for more than 6 seconds
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 and/or front passenger occupant
classification system, ªAIRBAG ONº indicator light and
ªAIRBAG OFFº indicator light fail. 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
ªONº position and goes off after the engine starts. This
means that the warn ing 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 does not go off even after 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 engine speed does not increase when the accelerator pedal
is depressed, there may be a problem somewhere in the
electronic throttle control system.