IS350 AWD/IS350/IS300- Page 302

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6-3. Do-it-yourself maintenance

a safe place for approximately 20 minutes 

and then drive the vehicle again.

●

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, con-

tact 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 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.130)

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.300)



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.301)

■

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.

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