Registering Id Codes; When Registering Id Codes; Canceling Id Code Registration - Lexus is300 2021 Service Manual

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310
6-3. Do-it-yourself maintenance
WARNING
When initializing the tire pressure
warning system
Do not operate the tire pressure warning
reset switch without first adjusting the tire
inflation pressure to the specified level.
Otherwise, 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 normal.

Registering ID codes

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 codes.
1
Park the vehicle in a safe place, turn
the engine switch off, wait 20 min-
utes or more, and then start the
engine.
Registering cannot be performed while the
vehicle is moving.
2
Start the engine. (P.134)
3
Press the tire pressure warning
reset switch 3 times quickly.
The tire pressure warning light will blink
slowly 3 times.
Sensor registration mode will be entered
and ID codes registration will begin.
A message will be displayed on the
multi-information display and "- -" will be
displayed for the tire inflation pressure of
each tire.
After this, the tire pressure warning light
will blink for 1 minute and then illuminate.
4
Wait approximately 2 minutes.
If the ID codes are already registered, the
tire pressure warning light will turn off.
If the tire pressure warning light
turns off
5
Initialize the tire pressure warning
system. (P.308)
If the tire pressure warning light
does not turn off
5
Drive at approximately 25 mph
(40 km/h) or more until the tire
pressure warning light turns off.
6
Initialize the tire pressure warning
system. (P.308)

When registering ID codes

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.
As the tires will be warm when registra-
tion is completed, make sure to allow the
tires to cool before performing initializa-
tion.

Canceling ID code registration

To cancel ID code registration after it has
been started, turn the engine switch off

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