3246-3. Do-it-yourself maintenance
■The tire pressure warning system
must be initialized in the following
circumstances:
When rotating the tires.
When the tire inflation pressure is
changed when changing traveling
speed.
When the tire inflation pressure is
changed such as when changing tire
size. (When there are multiple spec-
ified pressures)
After registering the ID codes.
( P.326)
When the tire pressure warning sys-
tem is initialized, the current tire infla-
tion pressure is set as the benchmark
pressure.
■How to initialize the tire pressure
warning system
1 Park the vehicle in a safe place and
stop the engine for 20 minutes or
more.
Initialization cannot be performed while
the vehicle is moving.
2Adjust the tire inflation pressure to
the specified cold tire inflation
pressure level.
Make sure to adjust the tire pressure to the
specified cold tire infl ation pressure level.
The tire pressure warning system will oper-
ate based on this pressure level.
3 Start the engine. ( P.144)
4 Press or of the meter con-
trol switches and select .
5 Press or of the meter con-
trol switches and select “Vehicle
Settings”, then press “OK”.
6 Press or of the meter con-
trol switches and select “TPWS”,
then press “OK”.
7 Press or of the meter con-
trol switches and select “Set Pres-
sure”. Then press and hold “OK”
until the tire pressure warning light
starts blinking.
A message is displayed on the multi-infor-
mation display. Also, “--” is displayed for
inflation pressure of each tire on the multi-
information display while the tire pressure
NOTICE
●Make sure to install the tire valve caps.
If the tire valve caps are not installed,
water could enter the tire pressure
warning valves and the tire pressure
warning valves could be bound.
●When replacing tire valve caps, do not
use tire valve caps other than those
specified. The cap may become stuck.
■To avoid damage to the tire pressure
warning valves and transmitters
When a tire is repaired with liquid seal-
ants, the tire pressure warning valve and
transmitter may not operate properly. If a
liquid sealant is used, contact your Lexus
dealer or other qualified service shop as
soon as possible. Make sure to replace
the tire pressure warning valve and
transmitter when replacing the tire.
( P.323)
Initializing the tire pressure
warning system
3256-3. Do-it-yourself maintenance
6
Maintenance and care
warning system determines the position.
8Drive at approximately 25 mph
(40 km/h) or more for approxi-
mately 10 to 30 minutes.
When initialization is complete, the infla-
tion pressure of each tire will be displayed
on the multi-information display.
Even if the vehicle is not driven at approxi-
mately 25 mph (40 km/h) or more, initial-
ization can be completed by driving for a
long time. However, if initialization does
not complete after driving for 1 hour or
more, park the vehicle in a safe place for
approximately 20 minutes and then drive
the vehicle again.
■When initializing
●Initialization is performed while driving at
a vehicle speed of approximately 25 mph
(40 km/h) or more.
●Make sure to carry out initialization after
adjusting the tire inflation pressure.
Also, make sure the tires are cold before
carrying out initialization or tire inflation
pressure adjustment.
●The tire pressure warning system can be
initialized by yourself, but depending on
the driving conditions and driving envi-
ronment, initialization may take some
time to complete.
■The initialization operation
●If you have accidentally turned the engine
switch off during initialization, it is not
necessary to manually restart the initial-
ization again, as initialization will restart
automatically the next time the engine
switch is turned to IGNITION ON
mode.
●If you accidentally pe rform initialization
when initialization is not necessary, adjust
the tire inflation pressure to the specified
level when the tires are cold, and conduct
initialization again.
●While the position of each tire is being
determined and the inflation pressures
are not being displayed on the multi-
information display, if the inflation pres-
sure of a tire drops, the tire pressure
warning light will come on.
■If the tire pressure warning system is not
initialized properly
●In the following situations, initialization
may take longer than usual to be com-
pleted or may not be possible. Normally,
initialization completes within approxi-
mately 30 minutes.
• Vehicle is not driven at approximately 25
mph (40 km/h) or more
• Vehicle is driven on unpaved roads
• Vehicle is driven ne ar other vehicles and
system cannot recognize tire pressure
warning valve and tran smitters of your
vehicle over those of other vehicles
If initialization does not complete after driv-
ing for 1 hour or more, park the vehicle in a
safe place for approximately 20 minutes
and then drive the vehicle again.
●If the vehicle is reversed during initializa-
tion, the data up to that point is reset, so
perform the initialization procedure
again from the beginning.
●In the following situations, initialization
will not be started or was not completed
properly and the system will not operate
properly. Perform the initialization pro-
cedure again.
• If, when attempting to start initialization,
the tire pressure warning light does not
blink 3 times.
• If, when the vehicle has been driven for
about 20 minutes after performing initial-
ization, the tire pressure warning light
blinks for approximately 1 minute and
then illuminates.
If initialization cannot be completed after
performing the above procedure, contact
your Lexus dealer.
3266-3. Do-it-yourself maintenance
Every tire pressure warning valve and
transmitter has a unique ID code.
When replacing a tire pressure warn-
ing valve and transmitter, it is neces-
sary to register the ID code.
When registering the ID codes, per-
form the following procedure.
1Park the vehicle in a safe place, wait
for approximately 20 minutes, and
then start the engine. ( P.144)
2 Press or of the meter con-
trol switches and select .
3 Press or of the meter con-
trol switches and select “Vehicle
Settings”, and then press “OK”.
4 Press or of the meter con-
trol switches and select “TPWS”,
and then press “OK”.
5 Press or of the meter con-
trol switches and select “Change
Wheel Set”. Then press and hold
“OK” until the tire pressure warn-
ing light starts slowly blinking 3
times.
Then a message will be displayed on the
multi-information display.
When registration is being performed, the
tire pressure warning light will blink for
approximately 1 minute then illuminate and
“--” will be displayed for the inflation pres-
sure of each tire on the multi-information
display.
6 Drive at approximately 25 mph
(40 km/h) or more for approxi-
mately 10 to 30 minutes.
Registration is complete when the tire
pressure warning light turns off and the
inflation pressure of each tire is displayed
on the multi-information display. Registra-
tion may take longer than normal to com-
plete if the vehicle speed cannot be
maintained at approximately 25 mph (40
km/h) or more. If registration cannot be
completed after driving for 1 hour or more,
perform the registration procedure again
from the beginning.
7 Initialize the tire pressure warning
system. ( P.324)
■When registering ID codes
●ID code registration is performed while
driving at a vehicle speed of approxi-
mately 25 mph (40 km/h) or more.
●Before performing ID code registration,
make sure that no wheels with tire pres-
sure warning valve and transmitters
installed are near the vehicle.
●Make sure to initialize the tire pressure
warning system after registering the ID
codes. If the system is initialized before
registering the ID codes, the initialized
values will be invalid.
WARNING
■When initializing the tire pressure
warning system
Do not initialize tire inflation pressure
without first adjusting the tire inflation
pressure to the specified level. Other-
wise, the 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 nor-
mal.
Registering ID codes
3286-3. Do-it-yourself maintenance
The recommended cold tire inflation
pressure and tire size are displayed on
the tire and loading information label.
( P.395)
Tire valve Tire pressure gauge
1 Remove the tire valve cap.
2 Press the tip of the tire pressure
gauge onto the tire valve.
3 Read the pressure using the gauge
gradations.
4 If the tire inflation pressure is not at
the recommended level, adjust the
pressure.
If you add too much air, press the
center of the valve to deflate.
5 After completing the tire inflation
pressure measurement and adjust-
ment, apply soapy water to the
valve and check for leakage.
6 Put the tire valve cap back on.
■Tire inflation pressure check interval
You should check tire inflation pressure
every two weeks, or at least once a month.
Do not forget to check the spare.
■Effects of incorrect tire inflation pres-
sure
Driving with incorrect tire inflation pressure
may result in the following:
●Reduced fuel economy
●Reduced driving comfort and poor han-
dling
●Reduced tire life due to wear
●Reduced safety
●Damage to the drivetrain
If a tire needs frequent inflating, have it
checked by your Lexus dealer.
■Instructions for checking tire inflation
pressure
When checking tire inflation pressure,
observe the following:
●Check only when the tires are cold.
If your vehicle has been parked for at
least 3 hours or has not been driven for
Tire inflation pressure
Checking the specifi ed tire infla-
tion pressure
Inspection and adjustment pro-
cedure
A
B
343
7
7
When trouble arises
When trouble arises
7-1. Essential informationEmergency flashers.................. 344
If your vehicle has to be stopped in an emergency ..................... 344
If the vehicle is submerged or water on the road is rising .. 345
7-2. Steps to take in an emergency
If your vehicle needs to be towed........................................................ 347
If you think something is wrong ........................................................ 349
Fuel pump shut off system ..... 350
If a warning light turns on or a warning buzzer sounds ........ 351
If a warning message is displayed ......................................................... 361
If you have a flat tire.................. 365
If the engine will not start ....... 374
If you lose your keys ................. 375
If the fuel filler door cannot be opened........................................ 376
If the electronic key does not operate properly .................... 376
If the battery is discharged .... 379
If your vehicle overheats ........ 382
If the vehicle becomes stuck 385
3517-2. Steps to take in an emergency
7
When trouble arises
■Brake system warning light (warning buzzer)
■Brake system warning light (warning buzzer)
■High coolant temperature warning light* (warning buzzer)
*: This light illuminates on the multi-information display.
If a warning light turns on or a warning buzzer sounds
Calmly perform the following actions if any of the warning lights comes on or
flashes. If a light comes on or flashes, but then goes off, this does not necessar-
ily indicate a malfunction in the system. However, if this continues to occur,
have the vehicle inspected by your Lexus dealer.
Actions to the warning lights or warning buzzers
Warning lightDetails/Actions
(U.S.A.)
or
(red)
(Canada)
Indicates that:
The brake fluid level is low; or
The brake system is malfunctioning
Immediately stop the vehicle in a safe place and contact your
Lexus dealer. Continuing to drive the vehicle may be dangerous.
Warning lightDetails/Actions
(yellow)
Indicates a malfunction in:
The electronically controlled brake system (if equipped); or
The parking brake system
Have the vehicle inspected by your Lexus dealer immediately.
Warning lightDetails/Actions
Indicates that the engine coolant temperature is too high
Immediately stop the vehicle in a safe place.
Handling method ( P.382)
3527-2. Steps to take in an emergency
■Charging system warning light* (warning buzzer)
*: This light illuminates on the multi-information display.
■Low engine oil pressure warning light* (warning buzzer)
*: This light illuminates on the multi-information display.
■Malfunction indicator lamp (warning buzzer)
■SRS warning light (warning buzzer)
Warning lightDetails/Actions
Indicates a malfunction in the vehicle’s charging system
Immediately stop the vehicle in a safe place and contact your
Lexus dealer.
Warning lightDetails/Actions
Indicates that the engine oil pressure is too low
Immediately stop the vehicle in a safe place and contact your
Lexus dealer.
Warning lightDetails/Actions
(U.S.A.)
or
(Canada)
Indicates a malfunction in:
The electronic engine control system; or
The electronic throttle control system
Immediately stop the vehicle in a safe place and contact your
Lexus dealer.
Warning lightDetails/Actions
Indicates a malfunction in:
The SRS airbag system;
The front passenger occupant classification system; or
The seat belt pretensioner system
Have the vehicle inspected by your Lexus dealer immediately.
3537-2. Steps to take in an emergency
7
When trouble arises
■ABS warning light (warning buzzer)
■Inappropriate pedal operation warning light* (warning buzzer)
*: This light illuminates on the multi-information display.
■Electric power steering system warning light (warning buzzer)
Warning lightDetails/Actions
(U.S.A.)
or
(Canada)
Indicates a malfunction in:
The ABS; or
The brake assist system
Have the vehicle inspected by your Lexus dealer immediately.
Warning lightDetails/Actions
When a buzzer sounds:
Indicates a malfunction in:
The Brake Override System
The Drive-Start Control
Have the vehicle inspected by your Lexus dealer immediately.
Indicates that the shift position was changed and Drive-Start Control
was operated while depressing the accelerator pedal.
Momentarily release the accelerator pedal.
When a buzzer does not sound:
Indicates that the accelerator and brake pedals are being depressed
simultaneously, and the Brake Override System is operating.
Release the accelerator pedal and depress the brake pedal.
Warning lightDetails/Actions
(red)
or
(yellow)
Indicates a malfunction in the EPS (Electric Power Steering) system
Have the vehicle inspected by your Lexus dealer immediately.