2006 LEXUS LX470 tire pressure reset

For detailed information, refer to the description given in each section\
.
PICTORIAL INDEX
xiiPage
1
Power window switches 39
. . . . . . . . . . . . . . . . . . . . . .
2 Power door lock switch 21
. . . . . . . . . . . . . . . . . . . . . .
3 Window lock switch 40
. . . . . . . . . . . . . . . . . . . . . . . . . .
4 Driving position memory switch 189
. . . . . . . . . . . . . .
5 Power quarter window switches 42
. . . . . . . . . . . . . .
6 Power rear view mirror control switches 194 . . . . . .
7 Roll sensing of curtain shield airbags off
switch 45, 146
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
8 Headlight and turn signal switch 30
. . . . . . . . . . . . . .
9 Windshield wiper and washer switch 33
. . . . . . . . . .
10 Center differential lock switch 266
. . . . . . . . . . . . . . .
11 Power antenna switch 222
. . . . . . . . . . . . . . . . . . . . . . .
12 Emergency flasher switch 43
. . . . . . . . . . . . . . . . . . . .
13 Security indicator light 25
. . . . . . . . . . . . . . . . . . . . . . .
14 Outside temperature display 72
. . . . . . . . . . . . . . . . . .
15 Clock 71
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . \
. . .
16 Navigation system including air conditioning
controls (See the separate “Navigation System
Owner’s Manual”.)
17 Front passenger occupant classification
indicator light 157 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
18 Front passenger’s seat belt reminder light 55 . . . . .
19 Audio system 218
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
20 Glove box 76
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page
21 Tire pressure warning select switch
307
. . . . . . . . . .
22 Outside rear view mirror defogger switch 38 . . . . . .
23 Rear air conditioning switch 210
. . . . . . . . . . . . . . . . .
24 Power outlet 74
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
25 Cigarette lighter 72
. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
26 Fourwheel drive control lever 266
. . . . . . . . . . . . . . .
27 Seat heater switches 44
. . . . . . . . . . . . . . . . . . . . . . . . .
28 Rear window defogger switch 37
. . . . . . . . . . . . . . . . .
29 Ashtray 72
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . \
.
30 Automatic transmission selector lever 259 . . . . . . . .
31 Damping mode select switch 287
. . . . . . . . . . . . . . . .
32 Active height control switch 279
. . . . . . . . . . . . . . . . .
33 Driving pattern selector switch 261
. . . . . . . . . . . . . . .
34 Second start mode selector switch 266
. . . . . . . . . . .
35 Cruise control switch 275
. . . . . . . . . . . . . . . . . . . . . . .
36 Telephone switches and speech command switch
(See the separate “Navigation System Owner’s
Manual”.)
37 Audio remote controls (Steering switches) 243 . . . .
38 Lexus night view system onoff knob 272
. . . . . . . .
39 Hood lock release lever 92
. . . . . . . . . . . . . . . . . . . . . .
40 Fuel filler door opener 93
. . . . . . . . . . . . . . . . . . . . . . . .
41 Tire pressure warning reset switch 305
. . . . . . . . . . .

For detailed information, refer to the description given in each section\
.
PICTORIAL INDEX
xivPage
1
Power window switches 39
. . . . . . . . . . . . . . . . . . . . . .
2 Power door lock switch 21
. . . . . . . . . . . . . . . . . . . . . .
3 Window lock switch 40
. . . . . . . . . . . . . . . . . . . . . . . . . .
4 Driving position memory switch 189
. . . . . . . . . . . . . .
5 Power quarter window switches 42
. . . . . . . . . . . . . .
6 Power rear view mirror control switches 194 . . . . . .
7 Roll sensing of curtain shield
airbags off switch 45, 146
. . . . . . . . . . . . . . . . . . . . . . . .
8 Headlight and turn signal switch 30
. . . . . . . . . . . . . .
9 Windshield wiper and washer switch 33
. . . . . . . . . .
10 Center differential lock switch 266
. . . . . . . . . . . . . . .
11 Power antenna switch 222
. . . . . . . . . . . . . . . . . . . . . . .
12 Emergency flasher switch 43
. . . . . . . . . . . . . . . . . . . .
13 Trip information display 63
. . . . . . . . . . . . . . . . . . . . . .
14 Clock 71
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . \
. . .
15 Outside temperature display 72
. . . . . . . . . . . . . . . . . .
16 Security indicator light 25
. . . . . . . . . . . . . . . . . . . . . . .
17 Audio system 218
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
18 Front passenger occupant classification
indicator light 157 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
19 Front passenger’s seat belt reminder light 55 . . . . .
20 Automatic air conditioning controls 202
. . . . . . . . . . Page
21 Glove box
76
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
22 Tire pressure warning select switch 307
. . . . . . . . . .
23 Outside rear view mirror defogger switch 38 . . . . . .
24 Rear air conditioning switch 210
. . . . . . . . . . . . . . . . .
25 Power outlet 74
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
26 Cigarette lighter 72
. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
27 Fourwheel drive control lever 266
. . . . . . . . . . . . . . .
28 Seat heater switches 44
. . . . . . . . . . . . . . . . . . . . . . . . .
29 Rear window defogger switch 37
. . . . . . . . . . . . . . . . .
30 Ashtray 72
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . \
.
31 Automatic transmission selector lever 259 . . . . . . . .
32 Damping mode select switch 287
. . . . . . . . . . . . . . . .
33 Active height control switch 279
. . . . . . . . . . . . . . . . .
34 Driving pattern selector switch 261
. . . . . . . . . . . . . . .
35 Second start mode selector switch 266
. . . . . . . . . . .
36 Cruise control switch 275
. . . . . . . . . . . . . . . . . . . . . . .
37 Audio remote controls (Steering switches) 243 . . . .
38 Lexus night view system onoff knob 272
. . . . . . . .
39 Hood lock release lever 92
. . . . . . . . . . . . . . . . . . . . . .
40 Fuel filler door opener 93
. . . . . . . . . . . . . . . . . . . . . . . .
41 Tire pressure warning reset switch 305
. . . . . . . . . . .

STARTING AND DRIVING
301
The tire pressure warning light may turn on due to natural
causes such as natural air l
eaks or tire inflation pressure
changes caused by temperature. In this case, adjusting the
tire inflation pressure will turn off the light.
Pushing the tire pressure warning reset switch should not turn
off the tire pressure warning light. Adjusting the tire inflation
pressure will turn off the light.
The spare tire is also equipped with the tire pressure warning
valve and transmitter. The tire pressure warning light will turn
on if the tire inflation pressure of the spare tire is low. If a tire
goes flat, even though the flat tire is replaced with the spare
tire, the warning light does not turn off. Replace the spare tire
with the repaired tire and adjust the proper tire inflation
pressure. The tire pressure warning light will turn off after a few
minutes.
CAUTION
Each tire, including the spare (if provided), should be
checked monthly when cold and inflated to the inflation
pressure recommended by the vehicle manufacturer on
the vehicle placard or tire inflation pressure label (tire
and load information label). (If your vehicle has tires of
a different size than the size indicated on the vehicle
placard or tire inflation pressure label (tire and load
information label), you should determine the proper tire
inflation pressure for those tires.)
As an added safety feature, your vehicle has been
equipped with a tire pressure monitoring system
(TPMS–tire pressure warning system) that illuminates a
low tire pressure telltale (tire pressure warning light)
when one or more of your tires is significantly
underinflated. Accordingly, when the low tire pressure
telltale (tire pressure warning light) illuminates, you
should stop and check your tires as soon as possible,
and inflate them to the proper pressure. Driving on a
significantly underinflated tire causes the tire to
overheat and can lead to tire failure. Underinflation
also reduces fuel efficiency and tire tread life, and may
affect the vehicle’s handling and stopping ability.
Please note that the TPMS (tire pressure warning
system) is not a substitute for proper tire maintenance,
and it is the driver’s responsibility to maintain correct
tire pressure, even if underinflation has not reached
the level to trigger illumination of the TPMS low tire
pressure telltale (tire pressure warning light).

STARTING AND DRIVING
303
If the tire pressure warning light blinks...
31x609
If the tire pressure warning light blinks when the ignition
switch is turned to the “ON” position, the tire pressure
warning system is not working properly.
The system will be disabled in the following conditions:
(When the condition becomes normal, the system will work
properly.)

If tires not equipped with tire pressure warning valves and
transmitters are used.
 If the ID code on the tire pressure warning valves and
transmitters is not registered.
 If electronic devices or facilities using similar radio wave
frequencies are nearby.
 If a radio set at similar frequencies is in use in the vehicle. 
If a window tint that affects the radio wave signals is
installed.
 If the tire pressure warning select switch is set to a dif ferent
tire setting.
 If there is a lot of snow or ice on the vehicle, in particular
around the wheels or wheel housings.
 If non− genuine Lexus wheels are used.
 If tire chains are used.
 If the spare tire is in a location subject to poor radio wave
signal reception.
 If the tire inflation pressure is 500 kPa (5.1 kgf/cm2
or bar,
73 psi) or higher.
If the tire pressure warning light blinks frequently when the
ignition switch is turned to the “ON” position, have it checked
by your Lexus dealer.
Even if you use genuine wheels, the tire pressure warning
system may not work properly with some types of tires.
Pushing the tire pressure warning reset switch should not turn
off the tire pressure warning light.

STARTING AND DRIVING
305
Replacing tires and wheels
When replacing the tires and wheels, be sure to install tire
pressure warning valves and transmitters. ID codes on the tire
pressure warning valves and transmitters are registered on the
tire pressure warning ECU. When replacing a tire pressure
warning valve and transmitter, it is necessar y to register the ID
code of tire pressure warning valve and transmitter. Have the
ID code registered by your Lexus dealer.
If the ID code is not registered, the system will not work
properly. After about 1 hour, the tire pressure warning light
blinks to indicate a system malfunction.
NOTICE
When the tires or tire pressure warning valves and
transmitters must be replaced, have them replaced by
your Lexus dealer. The tire pressure warning valves
and transmitters will be affected by the installation or
removal of tires.
Tire pressure warning reset switch
31x612
When initializing the system, the present tire inflation pressure
is stored as standard. The tire pressure warning system
determines decreased air pressure by comparing the present
and the standard tire inflation pressures. When you change
the set tire inflation pressure, it is necessary to initialize the tire
pressure warning system.
 When rotating the tires on vehicles differing with front and
rear tire inflation pressures.
 When changing the tire inflation pressure by changing
traveling speed or load weight, etc.
 When changing the tire size.

STARTING AND DRIVING
306To initialize the system, perform the following:
1. Park the vehicle in a safe place and turn the ignition switch
to the “OFF” position.
2. Adjust the pressure of all the installed tires to the specified
cold tire inflation pressure level. (See “Tire and wheels” on
page 420.)
3. Turn the ignition switch to the “ON” position.
4. Push and hold the tire pressure warning reset switch until
the tire pressure warning light blinks slowly three times.
5. Wait for a few minutes with the ignition switch “ON”, and
then turn the ignition switch to the “OFF” position.
If you push the tire pressure reset switch while the vehicle is
moving, initialization is not performed.
If you push the tire pressure reset switch accidentally and
initialization is performed, adjust the tire inflation pressure to
the specified level and initialize the system again.
31x609
If the tire pressure warning light does not blink slowly three
times when you push and hold the reset switch, initialization
has failed and the tire pressure warning system may not work
properly. In this case, initialize the system again. If
initialization
cannot be performed, have the system checked at
your Lexus dealer.
CAUTION
Do not push the 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.