Page 331 of 448

3316-3. Do-it-yourself maintenance
6
Maintenance and care
■If ID codes are not registered properly
●In the following situations, ID code regis-
tration may take longer than usual to be
completed or may not be possible. Nor-
mally, registration completes within
approximately 30 minutes.
• Vehicle is not parked for approximately 20 minutes or more before driving
• Vehicle is not driven at approximately 25
mph (40 km/h) or more
• Vehicle is driven on unpaved roads
• Vehicle is driven near other vehicles and
system cannot recognize tire pressure
warning valve and tran smitters of your
vehicle over those of other vehicles
• Wheel with tire pressure warning valve and transmitter installed is inside or near
the vehicle
If registration does not complete after driv-
ing for 1 hour or more, perform the ID code
registration procedure again from the
beginning.
●If the vehicle is reve rsed during registra-
tion, the data up to that point is reset, so
perform the registrati on procedure again
from the beginning.
●In the following situations, ID code regis-
tration will not be started or was not com-
pleted properly and the system will not
operate properly. Perform the ID code
registration procedure again.
• If, when attempting to start ID code regis-
tration, the tire pressure warning light
does not blink slowly 3 times.
• If, when the vehicle has been driven for
about 20 minutes after performing ID
code registration, the tire pressure warn-
ing light blinks for approximately 1 minute
and then illuminates.
●If ID code registration cannot be com-
pleted after performing the above proce-
dure, contact your Lexus dealer.
The recommended cold tire inflation
pressure and tire size are displayed on
the tire and loading information label.
( P.393)
Tire valve
Tire inflation pressure
Checking the specified tire infla-
tion pressure
Inspection and adjustment pro-
cedure
A
Page 333 of 448

3336-3. Do-it-yourself maintenance
6
Maintenance and care
When replacing wheels, care should
be taken to ensure that they are equiv-
alent to those removed in load capac-
ity, diameter, rim width and inset
*.
Replacement wheels are available at
your Lexus dealer.
*: Conventionally referred to as offset.
Lexus does not recommend using the
following:
Wheels of different sizes or types
Used wheels
Bent wheels that have been straight-
ened
■When replacing wheels
The wheels of your vehicle are equipped
with tire pressure warning valves and trans-
mitters that allow the tire pressure warning
system to provide advance warning in the
event of a loss in tire inflation pressure.
Whenever wheels are replaced, tire pres-
sure warning valves and transmitters must
be installed. ( P.327)
NOTICE
■When inspecting and adjusting tire
inflation pressure
Be sure to put the tire valve caps back on.
If a valve cap is not installed, dirt or mois-
ture may get into the valve and cause an
air leak, resulting in decreased tire infla-
tion pressure.
Wheels
If a wheel is bent, cracked or heavily
corroded, it should be replaced.
Otherwise, the tire may separate
from the wheel or cause a loss of
handling control.
Wheel selection
WARNING
■When replacing wheels
●Do not use wheels that are a different
size from those recommended in the
Owner’s Manual, as this may result in a
loss of handling control.
Page 362 of 448

3627-2. Steps to take in an emergency
leaks and tire inflation pressure changes
caused by temperature. In this case, adjust-
ing the tire inflation pressure will turn off the
warning light (after a few minutes).
■When a tire is replaced with a spare tire
The compact spare tire is not equipped with
a tire pressure warning valve and transmit-
ter. If a tire goes flat, the tire pressure warn-
ing light will not turn off even though the flat
tire has been replaced with the spare tire.
Replace the spare tire with the repaired tire
and adjust the tire inflation pressure. The
tire pressure warning lig ht will go off after a
few minutes.
■Conditions that the tire pressure warn-
ing system may not function properly
P.325
WARNING
■If both the ABS and the brake system
warning lights remain on
Stop your vehicle in a safe place immedi-
ately and contact your Lexus dealer.
The vehicle will become extremely
unstable during braking, and the ABS
system may fail, which could cause an
accident resulting in death or serious
injury.
■When the electric power steering
system warning light comes on
When the light comes on yellow, the
assist to the power steering is restricted.
When the light comes on red, the assist
to the power steering is lost and handling
operations of the steering wheel become
extremely heavy.
When steering wheel operations are
heavier than usual, grip the steering
wheel firmly and operate it using more
force than usual.
■If the tire pressure warning light
comes on
Be sure to observe the following precau-
tions.
Failure to do so could cause a loss of
vehicle control and result in death or
serious injury.
●Stop your vehicle in a safe place as
soon as possible. Check and adjust the
tire inflation pre ssure immediately.
●If the tire pressure warning light comes
on even after tire inflation pressure
adjustment, it is prob able that you have
a flat tire. Check the tire s. If a tire is flat,
change it with the spare tire and have
the flat tire repaired by the nearest
Lexus dealer.
●Avoid abrupt maneuvering and brak-
ing.
If the vehicle tires deteriorate, you
could lose control of the steering
wheel or the brakes.
■If a blowout or sudden air leakage
should occur
The tire pressure warning system may
not activate immediately.
■Maintenance of the tires
Each tire, including the spare (if pro-
vided), should be checked monthly when
cold and inflated to the inflation pressure
recommended by the vehicle manufac-
turer on the vehicle placard or tire infla-
tion pressure label (tire and load
information label). (If your vehicle has
tires of a different size than the size indi-
cated on the vehicle placard or tire infla-
tion pressure label [tire and load
information label], you should determine
the proper tire inflation pressure for
those tires.)
Page 393 of 448

3938-1. Specifications
8
Vehicle specifications
Type A
*1: 99 mph (160 km/h) or less
*2: More than 99 mph (160 km/h)
Type B
*1: 99 mph (160 km/h) or less
*2: More than 99 mph (160 km/h)
Tires and wheels
Tire size215/55R17 94V, T155/70D17 110M
Tire inflation pressure
(Recommended cold tire inflation pressure)
Front
36 psi (250 kPa, 2.5 kgf/cm
2 or bar)*1
46 psi (320 kPa, 3.2 kgf/cm2 or bar)*2
Rear
36 psi (250 kPa, 2.5 kgf/cm
2 or bar)*1
46 psi (320 kPa, 3.2 kgf/cm2 or bar)*2
Spare
60 psi (420 kPa, 4.2 kgf/cm
2 or bar)
Wheel size17 x 7 1/2J, 17 x 4T (compact spare)
Wheel nut torque76 ft•lbf (103 N•m, 10.5 kgf•m)
Tire size235/45R18 94V, T155/70D17 110M
Tire inflation pressure
(Recommended cold tire inflation pressure)
Front
35 psi (240 kPa, 2.4 kgf/cm
2 or bar)*1
46 psi (320 kPa, 3.2 kgf/cm2 or bar)*2
Rear
35 psi (240 kPa, 2.4 kgf/cm
2 or bar)*1
46 psi (320 kPa, 3.2 kgf/cm2 or bar)*2
Spare
60 psi (420 kPa, 4.2 kgf/cm
2 or bar)
Wheel size18 x 8J, 17 x 4T (compact spare)
Wheel nut torque76 ft•lbf (103 N•m, 10.5 kgf•m)
Page 394 of 448
3948-1. Specifications
Type C
*1: 137 mph (220 km/h) or less
*2: More than 137 mph (220 km/h)
Tire size235/40R19 92V, T155/70D17 110M
Tire inflation pressure
(Recommended cold tire inflation pressure)
Front
35 psi (240 kPa, 2.4 kgf/cm
2 or bar)*1
46 psi (320 kPa, 3.2 kgf/cm2 or bar)*2
Rear
35 psi (240 kPa, 2.4 kgf/cm
2 or bar)*1
46 psi (320 kPa, 3.2 kgf/cm2 or bar)*2
Spare
60 psi (420 kPa, 4.2 kgf/cm
2 or bar)
Wheel size19 x 8J, 17 x 4T (compact spare)
Wheel nut torque76 ft•lbf (103 N•m, 10.5 kgf•m)
Light bulbs
Light bulbsBulb No.WType
Front turn signal lights (single-beam
headlights)7444NA28/8Wedge base
bulbs (amber)
Front side marker lights (single-beam
headlights)W5W5Wedge base bulbs (clear)
Page 397 of 448

3978-1. Specifications
8
Vehicle specifications
Full-size tireTire size ( P.399)
DOT and Tire Identification Number (TIN) ( P.399)
Location of treadwear indicators ( P.322)
Tire ply composition and materials
Plies are layers of rubber-coated parallel cords. Cords are the strands which form the plies
in a tire.
Radial tires or bias-ply tires
A radial tire has “RADIAL” on the sidewall. A tire not marked “RADIAL” is a bias-ply tire.
TUBELESS or TUBE TYPE
A tubeless tire does not have a tube and air is directly put into the tire. A tube type tire has a
tube inside the tire and the tube maintains the air pressure.
Load limit at maximum cold tire inflation pressure ( P.401)
Maximum cold tire inflation pressure ( P.401)
This means the pressure to which a tire may be inflated.
Uniform tire quality grading
For details, see “Uniform Tire Quality Grading” that follows.
Summer tires or all season tires ( P.323)
An all season tire has “M+S” on the sidewall. A tire not marked “M+S” is a summer tire.
Tire information
Typical tire symbols
A
B
C
D
E
F
G
H
I
J
Page 398 of 448
3988-1. Specifications
Compact spare tireTire size ( P.399)
DOT and Tire Identification Number (TIN) ( P.399)
Location of treadwear indicators ( P.322)
Tire ply composition and materials
Plies are layers of rubber-coated parallel cords. Cords are the strands which form the plies
in a tire.
Radial tires or bias-ply tires
A radial tire has “RADIAL” on the sidewall. A tire not marked “RADIAL” is a bias-ply tire.
TUBELESS or TUBE TYPE
A tubeless tire does not have a tube and air is directly put into the tire. A tube type tire has a
tube inside the tire and the tube maintains the air pressure.
Load limit at maximum cold tire inflation pressure ( P.401)
Maximum cold tire inflation pressure ( P.401)
This means the pressure to which a tire may be inflated.
“TEMPORARY USE ONLY”
A compact spare tire is identified by the phrase “TEMPORARY USE ONLY” molded on its
sidewall. This tire is designed for temporary emergency use only.
A
B
C
D
E
F
G
H
I
Page 399 of 448

3998-1. Specifications
8
Vehicle specifications
Type ADOT symbol
*
Tire Identification Number (TIN)
Tire manufacturer’s identification
mark
Tire size code
Manufacturer’s optional tire type
code (3 or 4 letters)
Manufacturing week
Manufacturing year
*:The DOT symbol cert ifies that the tire
conforms to applicable Federal Motor
Vehicle Safety Standards.
Type B
DOT symbol
*
Tire Identification Number (TIN) Tire manufacturer’s identification
mark
Manufacturer’s code
Manufacturing week
Manufacturing year
*: The DOT symbol certifies that the tire
conforms to applicable Federal Motor
Vehicle Safety Standards.
■Typical tire size information
The illustration indicates typical tire
size.
Tire use (P = Passenger car, T =
Temporary use)
Section width (millimeters)
Aspect ratio (tire height to section
width)
Tire construction code (R = Radial,
D = Diagonal)
Wheel diameter (inches)
Load index (2 digits or 3 digits)
Speed symbol (alphabet with one
letter)
Typical DOT and Tire Identifica-
tion Number (TIN)
A
B
C
D
E
F
G
A
B
Tire size
C
D
E
F
A
B
C
D
E
F
G