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6-3. Do-it-yourself maintenance
Q When registering ID codes
O ID code registration is performed while
driving at a vehicle speed of approxi-
mately 40 km/h (25 mph) or more.
O Before performing ID code registration,
make sure that no wheels with tire pres-
sure warning valve and transmitters
installed are near the vehicle.
O 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.
O ID codes can be registered by yourself,
but depending on the driving conditions
and driving environment, registration
may take some time to complete.
Q Canceling ID code registration
O To cancel ID code registration after it has
been started, turn the power switch off
before driving the vehicle.
If the vehicle is driven after ID code regis-
tration is started, to cancel registration,
perform the ID code registration start
procedure again and turn the power
switch off before driving.
O If ID code registration has been can-
celed, the tire pressure warning light will
blink for approximately 1 minute when the
power switch is turned to ON mode and
then illuminate. The tire pressure warning
system will be operational when the tire
pressure warning light turns off.
O If the warning light does not turn off even
after several minutes have elapsed, ID
code registration may not have been
canceled correctly. To cancel registra-
tion, perform the ID code registration
start procedure again and then turn the
power switch off before driving.
Q If ID codes are not registered properly
O In the following situations, ID code regis-
tration may take longer than usual to be
completed or may not be possible. Nor-
mally, registration completes within
approximately 30 minutes.
• Vehicle is not parked for approximately
20 minutes or more before driving
• Vehicle is not driven at approximately 40
km/h (25 mph) 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
• Wheel with tire pressure warning valve
and transmitter installed is inside or near
the vehicle
O If registration does not complete after
driving for 1 hour or more, perform the ID
code registration procedure again from
the beginning.
O If the vehicle is reversed during registra-
tion, the data up to that point is reset, so
perform the registration procedure again
from the beginning.
O In the following situations, ID code regis-
tration will not be started or was not com-
pleted properly and the system will not
operate properly. Perform the ID code
registration procedure again.
• If, when attempting to start ID code regis-
tration, the tire pressure warning light
does not blink slowly 3 times.
• If, when the vehicle has been driven for
about 20 minutes after performing ID
code registration, the tire pressure warn-
ing light blinks for approximately 1 minute
and then illuminates.
O If ID code registration cannot be com-
pleted after performing the above proce-
dure, contact any authorized Lexus
retailer or Lexus authorized repairer, or
any reliable repairer.
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