Lexus GX470 2004 Engine / LEXUS 2004 GX470 FROM NOV. 2003 THROUGH DEC. 2003 PROD. OWNER'S MANUAL (OM60A74U)

CHASSIS
574
Tire chain selection

1 Side chain2 Cross chain
Use the tire chains of correct size.
For P265/65R17 tires, use the following type chains.
mm (in.)
A: Diameter of side chain 5.0 (0.20)
B: Width of side chain 18.0 (0.71)
C: Length of side chain 46.0 (1.81)
D: Width of cross chain 22.6 (0.89)
E: Length of cross chain 38.1 (1.5)
F: Diameter of cross chain 6.3 (0.25)Regulations regarding the use of tire chains vary
according to location or type of road. Always check the
local regulations before installing chains.

CHASSIS
575
NOTICE
If the wrong combination of tire and chain is used, the
chains could damage the vehicle body.

CHASSIS
576
Chain installation
Install the chains on the rear tires as tightly as possible.
Do not use tire chains on the front tires. Retighten chains
after driving 0.5 Ð 1.0 km (1/4 Ð 1/2 mile).
When installing chains on your tires, carefully follow the
instructions of the chain manufacturer.CAUTION
Do not exceed 50 km/h (30 mph) or the chain
manufacturer's recommended speed limit,
whichever is lower.
Drive carefully avoiding bumps, holes, and sharp
turns, which may cause the vehicle to bounce.
Avoid sharp turns or locked-wheel braking, as use of
chains may adversely affect vehicle handling.
When driving with chains installed, be sure to drive
carefully. Slow down before entering curves to avoid
losing control of the vehicle. Otherwise an accident
may occur.
NOTICE
When jacking up or installing tire chains, be sure to turn
off the rear height control air suspension with the
HEIGHT CONTROL OFFº switch and stop the engine.
Otherwise, the vehicle height may change because of
the automatic leveling function resulting in accident.

CHASSIS
577
REPLACING WHEELS
When to replace your wheels
If you have wheel damage such as bending, cracks or
heavy corrosion, the wheel should be replaced.
If you fail to replace a damaged wheel, the tire may slip off the
wheel or cause loss of handling control.
Replacement with used wheels is not recommended as they
may have been subjected to rough treatment or high mileage
and could fail without warning. Also, bent wheels which have
been straightened may have hidden structural damage and
therefore should not be used. Never use an inner tube in a
leaking wheel which is designed for a tubeless tire.
Wheel selection
When replacing wheels, care should be taken to ensure
that they are equivalent to those removed in load capacity,
diameter, rim width, and offset.
Correct replacement wheels are available at your Lexus
dealer.
A wheel of a different size or type may adversely affect
handling, wheel and bearing life, brake cooling,
speedometer/odometer calibration, stopping ability, headlight
aim, bumper height, vehicle ground clearance, and tire or snow
chain clearance to the body and chassis.
CAUTION
Observe the following instructions. Otherwise, an
accident may occur resulting in death or serious
injuries.
Do not use wheels other than the manufacturer's
recommended size, as this may cause dangerous
handling characteristics resulting in loss of control.
Do not use wheels of different brands, sizes and
types, as this may cause dangerous handling
characteristics resulting in loss of control.

CHASSIS
578
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 the 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.

CHASSIS
579

SECTION 6 ± 4
580
SERVICE PROCEDURES AND
SPECIFICATIONS
Electrical components
Specifications581 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Checking battery condition589 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Battery recharging precautions594 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Checking and replacing the blade type fuses595 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Checking the cartridge type fuses597 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Adding washer fluid599 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Replacing light bulbs600 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

ELECTRICAL COMPONENTS
581
SPECIFICATIONS
Ð FUSE LOCATIONS
64PY003

1Engine compartment
2Driver's side instrument panel
Ð FUSES

Engine compartment

ELECTRICAL COMPONENTS
582

Driver's side instrument panel

ELECTRICAL COMPONENTS
583
No.FUSEAMPERECIRCUIT
1SPARE10Spare fuse
2ALT140
Charging system and all
components in AM1º,
HEATERº, CDS FANº, FR
FOGº, DEFOGº, AIR SUSº,
AC115V INVº, SEAT HEATERº,
BATT CHGº, TOWING BRKº
and TOWINGº fuses
3SPARE15Spare fuse
4HEATER50Air conditioning system
5AIR
SUS50Rear height control air
suspension
6AM150
All components in ACCº, CIGº,
IG1º, FR WIP-WSHº, RR
WIPº, RR WSHº, DIFFº,
TEMSº and STAº fuses
7TOWING
BRK30Trailer brake controller
8J/B50
All components in P FR P/Wº,
P RR P/Wº, D RR P/Wº, D
P/SEATº, P P/SEATº, TAILº,
PANELº and POWER OR
TI&TEº fuses
9BATT
CHG30Trailer sub battery
10TOWING40Trailer lights
11CDS FAN20Electric cooling fan
12RR A/C30Rear air conditioning system
No.FUSEAMPERECIRCUIT