suspension Lexus GX470 2005 Pictorial Index / LEXUS 2005 GX470 (OM60B11U) Owner's Guide

MAINTENANCE
531
DOES YOUR VEHICLE NEEDREPAIRING?
Be on the alert for changes in performance and sounds, and
visual tip±offs that indicate service is needed. Some important
clues are:

Engine missing, stumbling, or pinging

Appreciable loss of power

Strange engine noises

A fluid leak under the vehicle (However, water dripping from
the air conditioning after use is normal.)

Change in exhaust sound (This may indicate a dangerous
carbon monoxide leak. Drive with the windows open and
have the exhaust system checked immediately.)

Flat±looking tires, excessive tire squeal when cornering,
uneven tire wear

Vehicle pulls to one side when driving straight on a level
road

Strange noises related to suspension movement

Loss of brake effectiveness, spongy feeling brake pedal,
pedal almost touches floors, vehicle pulls to one side when
braking

Engine coolant temperature continually higher than normal If you notice any of these clues, take your vehicle to your Lexus
dealer as soon as possible. It probably needs adjustment or
repair.
CAUTION
Do not continue driving with the vehicle unchecked. It
could result in serious vehicle damage and possibly
personal injury.

SECTION 6 ± 3
566
SERVICE PROCEDURES AND
SPECIFICATIONS
Chassis
Specifications567
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Checking brake fluid 571
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . . . . . . . . . . . . . . . . . . . . . . . . .
Checking power steering fluid 572
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . . . . . . . . . . . . . . . . .
Checking tire inflation pressure 574
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . . . . . . . . . . . . . . . .
Tire information 578
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Types of tires 587
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Rotating tires 588
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Checking and replacing tires 589
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . . . . . . . . . . . . . . . . . .
Installing snow tires and chains 591
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . . . . . . . . . . . . . . .
Replacing wheels 596
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Aluminum wheel precautions 597
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . . . . . . . . . . . . . . . . .
Suspension and chassis 597
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . . . . . . . . . . . . . . . . . . . . .

CHASSIS
595
NOTICE
When jacking up or installing tire chains, be sure to turn
off the rear height control air suspension with the ªHEIGHT CONTROL OFFº switch and stop the engine.Otherwise, the vehicle height may change because ofthe automatic leveling function resulting in accident.

CHASSIS
597
ALUMINUM WHEEL PRECAUTIONS
When installing aluminum wheels, check that the wheel nuts
are tight after driving your vehicle the first 1600 km (1000
miles).
 If you have rotated, repaired, or changed your tires, check
that the wheel nuts are still tight after driving 1600 km (1000
miles).
 When using tire chains, be careful not to damage the
aluminum wheels.
 Use only Lexus wheel nuts and wrench designed for your
aluminum wheels.
 When balancing your wheels, use only Lexus balance
weights or equivalent and a plastic or rubber hammer.
 As with any wheel, periodically check your aluminum
wheels for damage. If damaged, replace immediately.
SUSPENSION AND CHASSIS
CAUTION
Do not modify the suspension/chassis with lift kits,
spacers, springs, etc. It can cause dangerous handling
characteristics, resulting in loss of control.

ELECTRICAL COMPONENTS
601
No.FUSEAMPERECIRCUIT
1SPARE10Spare fuse
2ALT140
Charging system and all
components in ªAM1º,
ªHEATERº, ªCDS FANº, ªFR
FOGº, ªDEFOGº, ªAIR SUSº,
ªAC INVº, ªSEAT HEATERº,
ªOBDº, ªSTOPº, ªJ/Bº, ªRR ACº,
ªMIR HEATERº, ªBATT CHGº,
ªTOWING BRKº and ªTOWINGº
fuses
3SPARE15Spare fuse
4HEATER50Air conditioning system
5AIR
SUS50Rear height control air
suspension
6AM150
All components in ªACCº, ªCIGº,
ªIG1º, ªFR WIP±WSHº, ªRR
WIPº, ªRR WSHº, ªDIFFº,
ªECU±IGº, ªTEMSº and ªSTAº
fuses
7TOWING BRK30Trailer brake controller
8J/B50
All components in ªP FR P/Wº,
ªP RR P/Wº, ªD RR P/Wº, ªD
P/SEATº, ªP P/SEATº, ªTAILº,
ªPANELº and ªPOWER OR
TI&TEº fuses
9BATTCHG30Trailer sub battery
10TOWING40Trailer lights
No.FUSEAMPERECIRCUIT

ELECTRICAL COMPONENTS
602
11CDS FAN20Electric cooling fan
12RR A/C30Rear air conditioning system
13MIR
HEATER10Outside rear view mirror
defogger
14STOP10
Stop lights, high m ounted
stoplight, shift lock control
system, vehicle stability control
system, electronic m odulated
suspension, rear height control
air suspension, multiport fuel
injection system/sequential
multiport fuel injection system
15AC INV15Power outlet (115 VAC)
16FR FOG15Front fog lights
17OBD7.5On±board diagnosis system
18HEAD
(LO RH)10Right±hand headlight (low beam)
19HEAD
(LO LH)10Left±hand headlight (low beam)
No.FUSEAMPERECIRCUIT
20HEAD
(HI RH)10Right±hand headlight (high
beam)
21HEAD
(HI LH)10Left±hand headlight (high beam)
22EFI NO.210Multiport fuel injection
system/sequential multiport fuel
injection system
23HEATER NO.27.5Air conditioning system

ELECTRICAL COMPONENTS
603
24DEFOG30Rear window defogger
25AIRSUSNO.210Rear height control air
suspension
26SEAT
HEATER20Seat heaters
27DOME10
Ignition switch light, interior
lights, personal lights, foot
lights, running board lights,
door courtesy lights, inside
door handle lights,
multi±information display
28RADIO NO.120Audio system, navigation
system
No.FUSEAMPERECIRCUIT
29ECU±B10
Multiplex communication
system, vehicle stability control
system, wireless remote
control system, inside rear
view mirror, air conditioning
system, electronic modulated
suspension, driving position
memory system, power
windows, moon roof, rear view
monitor system
30ECU±B NO.210Theft deterrent system
31ABS
MTR40
Anti±lock brake system,
vehicle stability control system,
active traction control system,
brake assist system
32AM230Starting system, all components
in ªIGNº, ªSRSº, ªGAUGEº and
ªST2º fuses

ELECTRICAL COMPONENTS
605
47SRS10SRS airbag system, front
passenger occupant
classification system
48GAUGE7.5Gauges and meters
No.FUSEAMPERECIRCUIT
49ST27.5Multiport fuel injection
system/sequential multiport fuel
injection system
50FR
WIP±WSH30Windshield wipers, windshield
washer
51TEMS20Electronic modulated
suspension
52DIFF20Four±wheel drive system
53RR WIP15Rear window wiper
54D P/SEAT30Driver's power seat
55P P/SEAT30Front passenger's power seat
56PWR
OUTLET15Power outlet (12 VDC)
57IG1 NO.210Rear air conditioning system,
inside rear view mirror, kinetic
dynamic suspension system
58RR WSH15Rear window washer
No.FUSEAMPERECIRCUIT