377
6
6-3. Do-it-yourself maintenance
Maintenance and care
Q 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.379)
When the tire pressure warning sys-
tem is initialized, the current tire infla-
tion pressure is set as the benchmark
pressure.
Q How to initialize the tire pressure
warning system
1 Park the vehicle in a safe place and
stop the hybrid system for 20 min-
utes or more.
Initialization cannot be performed while
the vehicle is moving.
2 Adjust the tire inflation pressure to
the specified cold tire inflation
pressure level.
Make sure to adjust the tire pressure to the
specified cold tire inflation pressure level.
The tire pressure warning system will oper-
ate based on this pressure level.
3 Start the hybrid system. (P.185)
4 Press or of the meter con-
trol switches and select .
5 Press or of the meter con-
trol switches and select “Vehicle
Settings”, and then press “OK”.
6 Press or of the meter con-
trol switches and select “TPWS”,
and then press “OK”.
7 Press or of the meter con-
trol switches and select “Set Pres-
sure”, and then press and hold
Q Repairing or replacing tires, wheels,
tire pressure warning valves, trans-
mitters and tire valve caps
O When removing or fitting the wheels,
tires or the tire pressure warning
valves and transmitters, contact any
authorized Lexus retailer or Lexus
authorized repairer, or any reliable
repairer as the tire pressure warning
valves and transmitters may be dam-
aged if not handled correctly.
O 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.
O When replacing tire valve caps, do not
use tire valve caps other than those
specified. The cap may become stuck.
Q 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 any autho-
rized Lexus retailer or Lexus authorized
repairer, or any reliable repairer or other
qualified service shop as soon as possi-
ble. After use of liquid sealant, make sure
to replace the tire pressure warning
valve and transmitter when repairing or
replacing the tire. (P.376)
Initializing the tire pressure
warning system
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