Page 484 of 651

STARTING AND DRIVING
463
Low tire pressure warning light
This light comes on when the ignition key is turned to the “ON”
position. It goes off after a few seconds. This indicates that the
tire pressure warning system is functioning properly.
If the low tire pressure warning light comes on or blinks
while driving, do the following.
If the warning light comes on: The tire pressure is critically
low. Adjust the tire inflation pressure to the specified level
as soon as possible. (See “Tires and wheels” on page 566.)
Once the ignition switch is turned off, the warning light also
goes off. If the light comes on again when the vehicle is started
after adjusting tire inflation pressure to the specified level, have
the system checked at your Lexus dealer. If you have a flat tire, replace it with the spare tire. For details,
see “If you have a flat tire” on page 500.
If the warning light blinks once every second: The low
tire pressure warning system may be malfunctioning.
Contact your Lexus dealer.
If the warning light blinks twice every second: The low
tire pressure warning system needs to be initialized. Reset
the system with the tire pressure warning system reset
switch. (To reset the system, see “Tire pressure warning
system reset switch”.)
The tire pressure warning system does not function
properly under certain circumstances. In the following
cases, the low tire pressure warning light may not come
on even if the tire inflation pressure is low, or it may come
on when the tire inflation pressure is actually normal.
A compact spare tire, snow tires, or tire chains are used.
The tire inflation pressure is excessively higher than
specified, or tire inflation pressure suddenly drops due to
bursting or other causes.
The vehicle is driven on a slippery road surface such as
rough or frozen roads.
The vehicle speed is less than 30 km/h (19 mph) or more
than 100 km/h (62 mph), and the driving duration is less than
5 minutes.
The tires differ in tread pattern or manufacturer.
The tires are not the specified size.
Page 523 of 651
IN CASE OF AN EMERGENCY
502
NOTICE
Do not continue driving with a deflated tire.
Driving even a short distance can damage a tire
and wheel beyond repair.
Access to spare tire
1Jack
2Adapter socket (for removing a spare tire)
3Wrench
4Towing eyelet
5Jack handle
6Tool bag
7Spare tire
1. Get the tool, jack, wrench, adapter socket (for
removing a spare tire) and spare tire.
To prepare yourself for an emergency, you should
familiarize yourself with the use of the jack and each
tool, and their storage locations.
Page 534 of 651

IN CASE OF AN EMERGENCY
513
9. After changing the wheel, check the air pressure
of the replaced tire.
If the pressure of the replaced tire is low, drive slowly
to the nearest service station and fill to the correct
pressure.
Do not forget to reinstall the tire valve cap as dirt and
moisture could get into the valve core and possibly
cause air leakage. If the cap is missing, put a new
one on as soon as possible.10. Stow all the tools, jack and flat tire securely.
To stow the flat tire, install the inside spare tire cover
on the outer side of the spare tire cover. Put the flat
tire in the spare tire cover with the outer side facing
up and install the holding bracket. Turn the spare
tire clamp bolt clockwise with a jack handle and
adapter socket until you hear a click.
NOTICE
Ensure that there is no object caught between
the tire and the vehicle underbody.
Otherwise, the wheel may fly forward during
a collision or sudden braking.
Tighten the spare tire clamp bolt to hold the
spare wheel carrier by the hook securely.
This is the same procedure for changing or rotating
your tires.
Page 587 of 651
CHASSIS
566
— TIRES AND WHEELS (type A)Tire size
225/65R17 101S
Tire inflation pressure Recommended cold tire inflation
pressure
Front 210 kPa (2.1 kgf/cm2 or bar, 30 psi)
Rear 210 kPa (2.1 kgf/cm2 or bar, 30 psi)
Spare 210 kPa (2.1 kgf/cm2 or bar, 30 psi)
For sustained high speeds above 160 km/h (100 mph), in
countries where such speeds are permitted by law, add 10
kPa (0.1 kgf/cm
2 or bar, 1.5 psi) to the front tires and rear
tires, but never exceed the maximum cold tire pressure
molded on the tire sidewall.
Wheel size17 6 1/2 J
Wheel nut torque103 N·m (10.5 kgf·m, 76 ft·lbf)
NOTE:
For complete information on tires (e.g. replacing tires or replacing wh\
eels), see “Checking tire inflation pressure”
through “Aluminum wheel precautions” on pages 570 through 591.
Page 588 of 651
CHASSIS
567
— TIRES AND WHEELS (type B)Tire size
P235/55R18 99V
Tire inflation pressure Recommended cold tire inflation
pressure
Front 210 kPa (2.1 kgf/cm2 or bar, 30 psi)
Rear 210 kPa (2.1 kgf/cm2 or bar, 30 psi)
Spare 210 kPa (2.1 kgf/cm2 or bar, 30 psi)
Wheel size18 x 7 JJ
Wheel nut torque103 N·m (10.5 kgf·m, 76 ft·lbf)
NOTE:
For complete information on tires (e.g. replacing tires or replacing wh\
eels), see “Checking tire inflation pressure”
through “Aluminum wheel precautions” on pages 570 through 591.
Page 607 of 651

CHASSIS
586
This applies also to the spare tire and tires stored
for future use.
Tire selection
When replacing a tire, use a tire of the same size
and construction, and the same or greater
maximum load as the originally installed tires.
Also, on four wheel drive models, 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
536 and 573.
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.
Four wheel drive models:
Do not use tires of different brands, sizes,
construction or tread patterns, as this may
cause dangerous handling characteristics
resulting in loss of control.