2016 LEXUS IS250 tire pressure

7
∗: If equipped
Tires
lRotation
lReplacement
lInflation pressure
lInformation
P. 325
P. 404
P. 439
P. 449
Tail lights P. 156
Side marker lights P. 156
Trunk P. 43
Rear window defogger P. 218
Doors P. 39
Fuel filler door P. 74
Turn signal lights P. 139

191
2-4. Using other driving systems
2

When driving
CAUTION
nTRAC may not operate effectively when
Directional control and power may not be achievable while driving on slippery road
surfaces, even if the TRAC system is operating.
Do not drive the vehicle in conditions where stability and power may be lost.
nIf hill-start assist control does not operate effectively
(vehicles with an automatic transmission)
The hill-start assist control may not operate effectively on steep inclines and roads
covered in ice.
nWhen the VSC is activated
The slip indicator light flashes and a warning buzzer sounds. Always drive carefully.
Reckless driving may cause an accident. Exercise particular care when the indica-
tor light flashes and a buzzer sounds.
nWhen TRAC and VSC are off
Be especially careful and drive at a speed appropriate to the road conditions. As
there are systems to ensure vehicle stability and driving force, do not turn off TRAC
and VSC unless necessary.
nReplacing tires
Make sure that all tires are of the same size, brand, tread pattern and total load
capacity. In addition, make sure that the tires are inflated to the recommended tire
pressure level.
The ABS and VSC systems will not function correctly if different tires are fitted on
the vehicle.
Contact your Lexus dealer for further information when replacing tires or wheels.
nHandling of tires and suspension
Using tires with any kind of problem or modifying the suspension will affect the driv-
ing assist systems, and may cause the system to malfunction.

202
2-5. Driving information
nSnow chain installation
Observe the following precautions when installing and removing chains.
lInstall and remove tire chains in a safe location.
lInstall tire chains on the rear tires only. Do not install tire chains on front tires.
lInstall the tire chains on rear tires as tightly as possible. Retighten chains after
driving 1 /4 - 1 /2 mile (0.5 - 1.0 km).
lInstall tire chains following the instructions provided in the accompanying
instructions.
CAUTION
nDriving with snow tires
Observe the following precautions to reduce the risk of accidents.
Failing to do so may result in a loss of vehicle control and cause death or serious
injury.
lUse tires of the size specified for your vehicle.
lMaintain the recommended level of air pressure.
lDo not drive in excess of 75 mph (120 km/h), regardless of the type of snow tires
being used.
lUse snow tires on all, not just some wheels.
nDriving with snow chains
Observe the following precautions to reduce the risk of accidents.
Failing to do so may result in the vehicle being unable to be driven safely, and may
cause death or serious injury.
lDo not drive in excess of the speed limit specified for the tire chains being used,
or 30 mph (50 km/h), whichever is lower.
lAvoid driving on bumpy road surfaces or over potholes.
lAvoid sudden turns and braking, as use of chains may adversely affect vehicle
handling.
lSlow down sufficiently before entering a curve to ensure that vehicle control is
maintained.

203
2-5. Driving information
2

When driving
NOTICE
nRepairing or replacing snow tires
Request repairs of and obtain replacement snow tires from Lexus dealers or legiti-
mate tire retailers.
This is because the removal and attachment of snow tires affects the operation of
the tire air pressure sensor.
nFitting tire chains
The tire air pressure sensor may not function correctly when tire chains are fitted.

261
3-5. Other interior features
3

Interior features
Change the settings.
Press the “ON/OFF” button to
change the settings (e.g. on/off).
nItems that can be set using the satellite switches
STEP3
Intuitive parking assist (→P. 180) on/off (if
equipped)
Tire pressure warning system initialization
(→P. 327)
ID code selection for tire air pressure system
(→P. 329)
AFS (Adaptive Front-lighting System) (→P. 1 5 7 )
on/off (if equipped)
Vehicle speed indicator on/off and speed setting
(→P. 144)
Tacho indicator on/off and engine speed (rpm)
setting (→P. 144)

325
4-3. Do-it-yourself maintenance
4

Maintenance and care
Tires
Replace or rotate tires in accordance with maintenance schedules and
treadwear.
nChecking tires
New tread
Treadwear indicator
Worn tread
The location of treadwear indi-
cators is shown by the “TWI” or
“∆” marks, etc., molded on the
sidewall of each tire.
Check spare tire condition and
pressure if not rotated.
nTire rotation
2WD models with 16-inch tires or AWD models
Rotate the tires in the order
shown.
To equalize tire wear and extend
tire life, Lexus recommends that
tire rotation is carried out at the
same interval as tire inspection.
Do not fail to initialize the tire
pressure warning system after
tire rotation.
2WD models with non-directional 17-inch tires
Rotate the tires in the order
shown.
To equalize tire wear and extend
tire life, Lexus recommends that
tire rotation is carried out at the
same interval as tire inspection.
Front
Front

326
4-3. Do-it-yourself maintenance
Directional tires
Tire direction marks
The tire sidewalls are marked with
arrows indicating the rolling direc-
tion of the tire. If mounted on the
wrong side of the vehicle, direc-
tional tires will perform poorly.
2WD models with 18-inch or directional 17-inch tires
Tires cannot be rotated.
nThe tire pressure warning system
Your Lexus is equipped with a tire pressure warning system that uses
tire pressure warning valves and transmitters to detect low tire infla-
tion pressure before serious problems arise. (→P. 385, 393)

327
4-3. Do-it-yourself maintenance
4

Maintenance and care
Installing tire pressure warning valves and transmitters
When replacing tires or wheels, tire pressure warning valves and trans-
mitters must also be installed.
When new tire pressure warning valves and transmitters are installed,
new tire pressure warning valve and transmitter ID codes must be regis-
tered in the tire pressure warning computer and tire pressure warning
system must be initialized. Have tire pressure warning valve and transmit-
ter ID codes registered by your Lexus dealer. (→P. 329)
Initializing the tire pressure warning system
nThe tire pressure warning system must be initialized in the following
circumstances:
lWhen rotating the tires on vehicles differing with front and rear tire
inflation pressures.
lWhen changing the tire inflation pressure by changing traveling
speed.
lWhen changing the tire size.
When the tire pressure warning system is initialized, the current tire
inflation pressure is set as the pressure benchmark.