Lexus UX 250h 2020, Owner'S Manual

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6-3. Do-it-yourself maintenance
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 approxi-
mately 20 minutes and then drive the vehi-
cle 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 carry-
ing out initialization or tire inflation pres-
sure 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 power
switch off during initialization, it is not
necessary to manually restart the initial-
ization again, as initialization will restart
automatically the next time the power
switch is turned to ON.
● If you accidentally perform 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 near other vehicles and
system cannot recognize tire pressure
warning valve and transmitters 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 proce-
dure 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 ini-
tialization, 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.
Every tire pressure warning valve and
transmitter has a unique ID code.
When replacing a tire pressure warn-
ing valve and transmitter, it is necessary
to register the ID code.
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 pres-
sure is low, or it may come on when the
tire inflation pressure is actually normal.
Registering ID codes