2004 Lexus GX470 cruise control

IMPORTANT INFORMATION ABOUT YOUR LEXUS
iv
Accessories, spare parts and modification of
your Lexus
A wide variety of non-genuine spare parts and accessories for
Lexus vehicles are currently available in the market. You
should know that Toyota does not warrant these products and
is not responsible for their performance, repair, or
replacement, or for any damage they may cause to, or adverse
effect they may have on, your Lexus vehicle.
This vehicle should not be modified with non-genuine Lexus
products. Modification with non- genuine Lexus products
could affect its performance, safety or durability, and may even
violate governmental regulations. In addition, damage or
performance problems resulting from the modification may not
be covered under warranty.
If you install any Genuine Accessories such as a bull-bar,
winch, etc., consult your Lexus dealer.
Installation of a mobile two-way radio system
As the installation of a mobile two-way radio system in your
vehicle could affect electronic systems such as the multiport
fuel injection system/sequential multiport fuel injection system,
cruise control system, anti-lock brake system, SRS airbag
system and seat belt pretensioner system, be sure to check
with your Lexus dealer for precautionary measures or special
instructions regarding installation.
Tires and loading on your Lexus
Underinflated or overinflated tire pressure and the
excess load may result in the deterioration of steering
ability and braking ability, leading to an accident.
Check the tire inflation pressure periodically and be
sure to keep the load limits given in this Owner's
Manual. For details about tire inflation pressure and
load limits, see pages 557 and 455.
Scrapping of your Lexus
The SRS airbag and seat belt pretensioner devices in your
Lexus contain explosive chemicals. If the vehicle is scrapped
with the airbags and seat belt pretensioners left as they are,
this may cause an accident such as a fire. Be sure to have the
systems of the SRS airbag and seat belt pretensioner removed
and disposed of by a qualified service shop or by your Lexus
dealer before you scrap your vehicle.

For detailed information, refer to the description given in each Section.
PICTORIAL INDEX
x
Page
1Driving position memory switches 208. . . . . . . . . . .
2Power window switches 45. . . . . . . . . . . . . . . . . . . . . . .
3Power door lock switch 22. . . . . . . . . . . . . . . . . . . . . . .
4Window lock switch 46. . . . . . . . . . . . . . . . . . . . . . . . . . .
5Power rear view mirror control switches 213. . . . . .
6Side vents 237. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
7Headlight, turn signal and
fog light switches 31, 33, 34. . . . . . . . . . . . . . . . . . . . . .
8Wiper and washer switch 34. . . . . . . . . . . . . . . . . . . . . .
9Center vents 237. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
10Emergency flasher switch 48. . . . . . . . . . . . . . . . . . . . .
11Car audio 244. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
12Multi-information display 70. . . . . . . . . . . . . . . . . . . . . .
13Automatic air conditioning controls 224. . . . . . . . . .
14Rear window defogger switch 42. . . . . . . . . . . . . . . . . .
15Front passenger's seat belt reminder light 61. . . . . .
16Glove box 88. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
17Ashtray 83. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
18Cigarette lighter 83. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
19Seat heater switches 49. . . . . . . . . . . . . . . . . . . . . . . . . .
20Four-wheel drive control lever 384. . . . . . . . . . . . . . . Page
21Automatic transmission selector lever 376. . . . . . . .
22Parking brake lever 374. . . . . . . . . . . . . . . . . . . . . . . . .
23Center differential lock switch 384. . . . . . . . . . . . . . .
24Power outlet (12 VDC) 85. . . . . . . . . . . . . . . . . . . . . . . . .
25Downhill assist control switch 408. . . . . . . . . . . . . . .
26Electronic modulated suspension
control switch 402. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
27Rear height control air suspension
switches 395. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
28Ignition switch 372. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
292nd STRTº switch 384. . . . . . . . . . . . . . . . . . . . . . . . . .
30Tire pressure warning system
selector switch 425. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
31Cruise control switch 392. . . . . . . . . . . . . . . . . . . . . . .
32Steering pad switches 265. . . . . . . . . . . . . . . . . . . . . . .
33Instrument panel light control dial 76. . . . . . . . . . . . . .
34Hood lock release lever 103. . . . . . . . . . . . . . . . . . . . .
35Fuel filler door opener 104. . . . . . . . . . . . . . . . . . . . . . .
36Roll sensing of curtain shield airbags
off switch 183. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
37Outside rear view mirror defogger switch 44. . . . . . .
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 switches 208. . . . . . . . . . .
2Power window switches 45. . . . . . . . . . . . . . . . . . . . . . .
3Power door lock switch 22. . . . . . . . . . . . . . . . . . . . . . .
4Window lock switch 46. . . . . . . . . . . . . . . . . . . . . . . . . . .
5Power rear view mirror control switches 213. . . . . .
6Side vents 237. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
7Headlight, turn signal and
fog light switches 31, 33, 34. . . . . . . . . . . . . . . . . . . . . .
8Wiper and washer switch 34. . . . . . . . . . . . . . . . . . . . . .
9Center vents 237. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
10Emergency flasher switch 48. . . . . . . . . . . . . . . . . . . . .
11Rear view monitor/navigation system display
(See the separate Navigation System
Owner's Manualº.) 388. . . . . . . . . . . . . . . . . . . . . . . . . .
12Multi-information display 70. . . . . . . . . . . . . . . . . . . . . .
13Automatic air conditioning controls 224. . . . . . . . . .
14Rear window defogger switch 42. . . . . . . . . . . . . . . . . .
15Front passenger's seat belt reminder light 61. . . . . .
16Glove box 88. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
17Car audio 244. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
18Ashtray 83. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
19Cigarette lighter 83. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
20Seat heater switches 49. . . . . . . . . . . . . . . . . . . . . . . . . . Page
21Four-wheel drive control lever 384. . . . . . . . . . . . . . .
22Automatic transmission selector lever 376. . . . . . . .
23Parking brake lever 374. . . . . . . . . . . . . . . . . . . . . . . . .
24Center differential lock switch 384. . . . . . . . . . . . . . .
25Power outlet (12 VDC) 85. . . . . . . . . . . . . . . . . . . . . . . . .
26Downhill assist control switch 408. . . . . . . . . . . . . . .
27Electronic modulated suspension
control switch 402. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
28Rear height control air suspension
switches 395. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
29Ignition switch 372. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
302nd STRTº switch 384. . . . . . . . . . . . . . . . . . . . . . . . . .
31Tire pressure warning system
selector switch 425. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
32Cruise control switch 392. . . . . . . . . . . . . . . . . . . . . . .
33Steering pad switches 265. . . . . . . . . . . . . . . . . . . . . . .
34Instrument panel light control dial 76. . . . . . . . . . . . . .
35Hood lock release lever 103. . . . . . . . . . . . . . . . . . . . .
36Fuel filler door opener 104. . . . . . . . . . . . . . . . . . . . . . .
37Roll sensing of curtain shield airbags
off switch 183. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
38Outside rear view mirror defogger switch 44. . . . . . .
39Power 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 384. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2Unengaged Parkº warning light 64. . . . . . . . . . . . . . .
3Automatic transmission fluid temperature
warning light 64. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4Low washer fluid warning light 67. . . . . . . . . . . . . . . . .
5Automatic transmission indicator lights 376. . . . . .
6Driver's seat belt reminder light 60. . . . . . . . . . . . . . . .
7Turn signal indicator light 33. . . . . . . . . . . . . . . . . . . . .
8Brake system warning light 59. . . . . . . . . . . . . . . . . . . .
9Headlight high beam indicator light 33. . . . . . . . . . . .
10ABSº warning light 63. . . . . . . . . . . . . . . . . . . . . . . . . .
11Open door warning light 64. . . . . . . . . . . . . . . . . . . . . . .
12Tachometer 56. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
13Headlight indicator light 31. . . . . . . . . . . . . . . . . . . . . . .
14Cruise control indicator light 392. . . . . . . . . . . . . . . .
15Engine oil replacement reminder light 67. . . . . . . . . .
16Slip indicator light 404, 406, 409, 411. . . . . . . . . . . . .
17Low engine oil pressure warning light 66. . . . . . . . . . Page
18Discharge warning light 65. . . . . . . . . . . . . . . . . . . . . . .
19Engine coolant temperature gauge 54. . . . . . . . . . . . .
20Malfunction indicator lamp 62. . . . . . . . . . . . . . . . . . . .
21Vehicle stability control system off
indicator light 406. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
22RSCA OFFº indicator light 183. . . . . . . . . . . . . . . . . .
23KDSSº warning light 65. . . . . . . . . . . . . . . . . . . . . . . . .
24Center differential lock indicator light 384. . . . . . . .
25VSC TRACº warning light 65. . . . . . . . . . . . . . . . . . . . .
26Downhill assist control system
indicator light 408. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
27Rear height control indicator lights 401. . . . . . . . . . .
28Security indicator light 14, 27. . . . . . . . . . . . . . . . . . . .
29SRS warning light 61. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
30Trip meter reset knob 57. . . . . . . . . . . . . . . . . . . . . . . . .
31Odometer and trip meter 57. . . . . . . . . . . . . . . . . . . . . .
32Low fuel level warning light 67. . . . . . . . . . . . . . . . . . . .
33Low tire pressure warning light 67. . . . . . . . . . . . . . . .
34Fuel gauge 53. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

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 394.
QUICK REFERENCE
3
3. AUTOMATIC TRANSMISSION

SECTION 3 ± 1
366
STARTING AND DRIVING
Starting and driving
Three-way catalytic converters367 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Engine exhaust caution370 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Before starting the engine372 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Ignition switch with steering lock372 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Parking brake374 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
How to start the engine374 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Automatic transmission376 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Four-wheel drive system384 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Rear view monitor system388 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Cruise control392 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Rear height control air suspension395 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Electronic modulated suspension402 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Active traction control system403 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Vehicle stability control system405 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Downhill assist control system408 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Hill-start assist control system411 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Brake system413 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Tire pressure warning system417 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Brake pad wear limit indicators426 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Limited-slip differential427 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

STARTING AND DRIVING
376
AUTOMATIC TRANSMISSION
Your automatic transmission has a shift lock system to
minimize the possibility of incorrect operation. This
means you can only shift out of Pº position when the
brake pedal is depressed with the ignition switch in ONº
position. ()
31PY039

The shift position is displayed beside the selector lever
and on the instrument cluster.
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)
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
394.
3, 2:Position for more powerful engine braking
L:Position for maximum engine braking

STARTING AND DRIVING
379
(b) Using engine braking
To use the braking power of the engine, downshift the
transmission in the way described below:
1Shift into the 4º position. The transmission will downshift
to fourth gear and engine braking will be enabled.
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. If
you need to decrease the vehicle speed, see page 394.
2Shift into the 3º position. The transmission will downshift
to third gear when the vehicle speed is or becomes lower
than the speed listed below and stronger engine braking
will be enabled.
Transfer Hº 133 km/h (83 mph)
Lº 52 km/h (32 mph)
3Shift into the 2º position. The transmission will downshift
to second gear when the vehicle speed is or becomes
lower than the speed listed below and more powerful
engine braking than that of 3º position will be enabled.
Transfer Hº 90 km/h (56 mph)
Lº 35 km/h (22 mph)
4Shift into the Lº position. The transmission will downshift
to first gear when the vehicle speed is or becomes lower
than the speed listed below and maximum engine braking
will be enabled.
Transfer Hº 47 km/h (29 mph)
Lº 18 km/h (11 mph)
CAUTION
Be careful when downshifting on a slippery surface.
The abrupt change in engine speed could cause the
vehicle to spin or skid.