flat tire Lexus GX470 2004 Engine / LEXUS 2004 GX470 FROM NOV. 2003 THROUGH DEC. 2003 PROD. (OM60A74U) Owner's Guide

CHASSIS
566
Glossary of tire terminology
Tire related termMeaning
Accessory weightthe combined weight (in excess of those standard items which may be replaced)
of automatic transmission, power steering, power brakes, power windows, power
seats, radio, and heater, to the extent that these items are available as
factory-installed equipment (whether installed or not)
Cold tire inflation
pressuretire inflation pressure when the vehicle has been parked for at least 3 hours or
more, or it has not been driven more than 1.5 km or 1 mile under that condition
Curb weightthe weight of a motor vehicle with standard equipment including the maximum
capacity of fuel, oil, and coolant, and, if so equipped, air conditioning and
additional weight optional engine
Maximum inflation
pressurethe maximum cold inflation pressure to which a tire may be inflated and it is
shown on the sidewall of the tire
Maximum loaded
vehicle weightthe sum of Ð
(a) curb weight;
(b) accessory weight;
(c) vehicle capacity weight; and
(d) production options weight
Normal occupant
weight68 kg (150 lb.) times the number of occupants specified in the second column of
Table 1 that follows

CHASSIS
567
Tire related termMeaning
Production options
weightthe combined weight of those installed regular production options weighing over
2.3 kg (5 lb.) in excess of those standard items which they replace, not
previously considered in curb weight or accessory weight, including heavy duty
brakes, ride levelers, roof rack, heavy duty battery, and special trim
Vehicle capacity
weight
(Total load capacity)the rated cargo and luggage load plus 68 kg (150 lb.) times the vehicle's
designated seating capacity
Intended outboard
sidewall(a) the sidewall that contains a whitewall, bears white lettering or bears
manufacturer, brand, and/or model name molding that is higher or deeper
than the same molding on the other sidewall of the tire, or
(b) the outward facing sidewall of an asymmetrical tire that has a particular side
that must always face outward when mounted on a vehicle
Occupant distributiondistribution of occupants in a vehicle as specified in the third column of Table 1
that follows
Recommended
inflation pressurecold tire inflation pressure recommended by a manufacturer
Rima metal support for a tire or a tire and tube assembly upon which the tire beads
are seated
Rim diameter (Wheel
diameter)nominal diameter of the bead seat
Rim size designationrim diameter and width
Rim type designationthe industry of manufacturer's designation for a rim by style or code
Rim widthnominal distance between rim flanges

CHASSIS
568
Tire related termMeaning
Vehicle maximum
load on the tirethe load on an individual tire that is determined by distributing to each axle its
share of the maximum loaded vehicle weight and dividing by two
Vehicle normal load
on the tirethe load on an individual tire that is determined by distributing to each axle its
share of the curb weight, accessory weight, and normal occupant weight
(distributed in accordance with Table 1 that follows) and dividing by two
Weather sidethe surface area of the rim not covered by the inflated tire
Table 1 Ð Occupant loading and distribution for vehicle normal load for various designated seating
capacities
Designated seating capacity,
number of occupants
Vehicle normal load, number of
occupantsOccupant distribution in a
normally loaded vehicle
2 through 422 in front
5 through 1032 in front, 1 in second seat

CHASSIS
571
CHECKING AND REPLACING TIRES
When to replace your tires

1New tread2Tread wear indicator
3Worn tread
Replace the tires when the tread wear indicators
show. The location of the tread wear indicators
is shown by the marks molded on the sidewall of
each tire.
The tires on your Lexus have built-in tread wear
indicators to help you know when the tires need
replacement. When the tread depth wears to 1.6 mm
(0.06 in.) or less, the indicators will appear. If you
can see the indicators in two or more adjacent
grooves, the tire should be replaced.The effectiveness of snow tires is lost if the tread
wears down below 4 mm (0.16 in.).
If you have tire damage such as cuts, splits,
cracks deep enough to expose the fabric, or
bulges indicating internal damage, the tire should
be replaced.
If a tire often goes flat or cannot be properly repaired
due to the size or location of a cut or other damage,
it should be replaced. If you are not sure, consult
with your Lexus dealer.
If an air loss occurs while driving, do not continue
driving with a deflated tire. Driving even a short
distance can damage a tire beyond repair.
Any tires which are over 6 years old must be
checked by a qualified technician even if damage
is not obvious.
Tires deteriorate with age even if they have never or
seldom been used.
This also applies to the spare tire and tires stored
for future use.

CHASSIS
572
Tire selection
When replacing a tire, use a tire of the same size
and construction, and the same or greater load
capacity as the originally installed tires. Also, all
the tires must be the same brand and have the
same tread patterns.
Using any other size or type of tire may seriously
affect handling, ride, speedometer/odometer
calibration, ground clearance, and clearance between
the body and tires or snow chains.
Check that the maximum load of the replaced tire is
greater than 1/2 of the Gross Axle Weight Ratings
(GAWR) of either the front axle or the rear axle,
whichever is greater. As for the maximum load of
the tire, see the load limit at maximum cold tire
inflation pressure mentioned on the sidewall of the tire,
and as for the Gross Axle Weight Ratings (GAWR),
see the Certification Label. For details about
Certification Label and sidewall of the tire, see pages
522 and 561.CAUTION
Observe the following instructions. Otherwise,
an accident may occur resulting in death or
serious injuries.
Do not mix radial, bias belted, or bias-ply tires
on your vehicle, as this may cause dangerous
handling characteristics resulting in loss of
control.
Do not use tires other than the manufacturer's
recommended size, as this may cause
dangerous handling characteristics resulting
in loss of control.
Do not use tires of different brands, sizes,
construction or tread patterns, as this may
cause dangerous handling characteristics
resulting in loss of control.

CHASSIS
573
INSTALLING SNOW TIRES AND
CHAINS
When to use snow tires or chains
Snow tires or chains are recommended when driving on
snow or ice.
On wet or dry roads, conventional or radial tires provide better
traction than snow or studded tires.
Snow tire selection
If you need snow tires, select tires of the same size,
construction and load capacity as the originally installed
tires. Also, all the tires must be the same brand and have
the same tread patterns.
Do not use tires other than stated above. Since your vehicle
has radial tires as original equipment, make sure your snow
tires also have radial construction. Do not install studded tires
without first checking local regulations for possible restrictions.
CAUTION
Observe the following instructions. Otherwise, an
accident may occur resulting in death or serious
injuries.
Do not use snow tires other than the manufacturer's
recommended size, as this may cause dangerous
handling characteristics resulting in loss of control.
Do not use snow tires of different brands, sizes,
construction or tread patterns, as this may cause
dangerous handling characteristics resulting in loss
of control.
Snow tire installation
Snow tires should be installed on all wheels.
Installing snow tires on the rear wheels only can lead to an
excessive difference in road grip capability between the front
and rear tires which could cause loss of vehicle control.
CAUTION
Do not drive with the snow tires incorrectly inflated.
Never drive over 105 km/h (65 mph) with any type of
snow tires.

GAS STATION INFORMATION

Fuel selection:
Select Octane Rating 87 (Research Octane Number 91) or
higher. For improved vehicle performance, the use of
premium unleaded gasoline with an Octane Rating of 91
(Research Octane Number 96) or higher is recommended.

Fuel tank capacity:
87 L (23 gal., 19.1 lmp.gal.)

Engine oil:
Toyota Genuine Motor Oilº or equivalent
Oil grade: API grade SL Energy- Conservingº or ILSAC
multigrade engine oil.
Recommended oil viscosity: SAE 5W-30
Oil capacity:
Drain and refill
with filter 6.2 L (6.5 qt., 5.5 lmp.qt.)
without filter 5.7 L (6.0 qt., 5.0 lmp.qt.)
See page 541 for detailed information.
Engine coolant:
Capacity: 12.9 L (13.6 qt., 11.4 lmp.qt.)
Coolant type Ð Toyota Super Long Life Coolantº or similar
high quality ethylene glycol based non-silicate, non-amine,
non- nitrite, and non- borate coolant with long- life hybrid
organic acid technology
Do not use plain water alone.
For checking the engine coolant, see page 545.

Automatic transmission:
Fluid type Ð Toyota Genuine ATF WSº
See page 551 for detailed information.

Tire information:
See pages 557 through 578 for detailed information.

Tire inflation pressure:
Tire size: P265/65R17 110S
Tire inflation pressure: 220kPa (2.2 kgf/cm
2 or bar, 32 psi)