2013 Lexus IS300h tire pressure reset

19Pictorial index
IS300h_EE(OM53B95E)
Driving position memory switches*1. . . . . . . . . . . . . . . . . . . . P. 168
Outside rear view mirror switches . . . . . . . . . . . . . . . . . . . . . . P. 180
Door lock switches . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 139
Power window switches . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 184
Window lock switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 184
Tire pressure warning reset switch . . . . . . . . . . . . . . . . . . . . . . P. 452
PCS OFF switch
*1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 293
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*1: If equipped
*2: For vehicles with a navigation system, refer to “Navigation System Owner's
Manual”.

27Pictorial index
IS300h_EE(OM53B95E)
PCS OFF switch*1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 293
Tire pressure warning reset switch . . . . . . . . . . . . . . . . . . . . . . P. 452
Outside rear view mirror switches . . . . . . . . . . . . . . . . . . . . . . P. 180
Driving position memory switches
*1. . . . . . . . . . . . . . . . . . . . P. 168
Window lock switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 184
Power window switches . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 184
Door lock switches . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 139
*1: If equipped
*2: For vehicles with a navigation system, refer to “Navigation System Owner's
Manual”.
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4527-3. Do-it-yourself maintenance
IS300h_EE(OM53B95E)
How to initialize the tire pressure warning system
Park the vehicle in a safe place and turn the power switch off.
Initialization cannot be performed while the vehicle is moving.
Adjust the tire inflation pressure to the specified cold tire inflation
pressure level. (P. 570)
Make sure to adjust the tire pressure to the specified cold tire inflation pres-
sure level. The tire pressure warning system will operate based on this pres-
sure level.
Turn the power switch to ON mode.
Press and hold the tire pressure
warning reset switch until the
tire pressure warning light
blinks slowly 3 times.
Wait for a few minutes with the power switch in ON mode and then
turn the power switch off.
Registering ID codes
The tire pressure warning valve and transmitter is equipped with a
unique ID code. When replacing a tire pressure warning valve and
transmitter, it is necessary to register the ID code. Have the ID code
registered by any authorized Lexus dealer or repairer, or another duly
qualified and equipped professional.
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4547-3. Do-it-yourself maintenance
IS300h_EE(OM53B95E)
Situations in which the tire pressure warning system may not operate properly
In the following cases, the tire pressure warning system may not operate prop-
erly.
• If non-genuine Lexus wheels are used.
• A tire has been replaced with a tire that is not an OE (Original Equipment)
tire.
• A tire has been replaced with a tire that is not of the specified size.
• Tire chains etc. are equipped.
• Lock nuts are equipped.
• An auxiliary-supported run-flat tire is equipped.
• If a window tint that affects the radio wave signals is installed.
• If there is a lot of snow or ice on the vehicle, particularly around the wheels
or wheel housings.
• If the tire inflation pressure is extremely higher than the specified level.
• 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 reg-
istered in the tire pressure warning computer.
Performance may be affected in the following situations.
• Near a TV tower, electric power plant, gas station, radio station, large dis-
play, airport or other facility that generates strong radio waves or electrical
noise
• When carrying a portable radio, cellular phone, cordless phone or other
wireless communication device
When the vehicle is parked, the time taken for the warning to start or go off
could be extended.
When tire inflation pressure declines rapidly for example when a tire has burst,
the warning may not function.
The initialization operation
Make sure to carry out initialization after adjusting the tire inflation pressure.
Also, make sure the tires are cold before carrying out initialization or tire infla-
tion pressure adjustment.
If you have accidentally turned the power switch off during initialization, it is
not necessary to press the reset switch again as initialization will restart auto-
matically when the power switch has been turned to ON mode for the next time.
If you accidentally press the reset switch when initialization is not necessary,
adjust the tire inflation pressure to the specified level when the tires are cold,
and conduct initialization again.
Warning performance of the tire pressure warning system
The warning of the tire pressure warning system will change in accordance with
the conditions under which it was initialized. For this reason, the system may
give a warning even if the tire pressure does not reach a low enough level, or if
the pressure is higher than the pressure that was adjusted to when the system was
initialized.

4557-3. Do-it-yourself maintenance
7
Maintenance and care
IS300h_EE(OM53B95E)
When initialization of the tire pressure warning system has failed
Initialization can be completed in a few minutes. However, in the following
cases, the settings have not been recorded and the system will not operate prop-
erly. If repeated attempts to record tire inflation pressure settings are unsuccess-
ful, have the vehicle inspected by any authorized Lexus dealer or repairer, or
another duly qualified and equipped professional.
When operating the tire pressure warning reset switch, the tire pressure warning
light does not blink 3 times.
After carrying out the initialization procedure, the tire pressure warning light
blinks for 1 minute then stays on after driving for 20 minutes.

4587-3. Do-it-yourself maintenance
IS300h_EE(OM53B95E)
CAUTION
When inspecting or replacing tires
Observe the following precautions to prevent accidents.
Failure to do so may cause damage to parts of the drivetrain as well as danger-
ous handling characteristics, which may lead to an accident resulting in death
or serious injury.
Do not mix tires of different makes, models or tread patterns.
Also, do not mix tires of remarkably different treadwear.
Do not use tire sizes other than those recommended by Lexus.
Do not mix differently constructed tires (radial, bias-belted or bias-ply tires).
Do not mix summer, all season and snow tires.
Do not use tires that have been used on another vehicle.
Do not use tires if you do not know how they were used previously.
Vehicles with an emergency tire puncture repair kit: Do not tow anything if a
tire that has been repaired using the emergency tire puncture repair kit is
installed. The load on the tire may cause unexpected damage to the tire.
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 warn-
ing 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.

608Alphabetical index
IS300h_EE(OM53B95E)
Sun shade
Rear ......................................422
Roof ......................................188
switch settings .....................118
Switches
ASC (Active Sound Control)225
Audio remote control
switches ..............................322
Automatic High Beam switch ....
229
BSM (Blind spot monitor)
switch .................................309
Cruise control
switch .........................245, 249
Door lock switches ...............139
Driving mode select switch ..290
Driving position memory
switches ..............................168
Emergency flashers switch ...498
EV drive mode switch ..........214
Fog light switch ....................233
Heated steering wheel
switch .................................409
Ignition switch ......................209
LDA (Lane Departure Alert)
switch .................................265
Lexus parking assist-sensor
switch .................................271
Light switch ..........................226
Meter control switches .........117
Moon roof switches ..............187Outside rear view mirror
switches ............................. 180
Paddle shift switches ........... 218
PCS OFF switch .................. 301
Power door lock switch ....... 139
Power switch........................ 209
Power window switches ...... 184
Rear sunshade switch........... 422
Rear window and outside rear
view mirror defoggers
switch ................................ 404
Seat heater switches ............. 410
Seat ventilator switches ....... 410
Snow mode switch ............... 217
Talk switch .......................... 378
Telephone switches.............. 378
Tilt and telescopic steering
control switch .................... 176
Tire pressure warning reset
switch ................................ 452
Trunk opener switch ............ 143
Trunk opener main switch ... 145
Vehicle-to-vehicle distance
button................................. 252
VSC OFF switch.................. 295
Window lock switch ............ 184
Windshield wiper de-icer
switch ................................ 405
Windshield wipers
and washer switch ............. 235

609Alphabetical index
IS300h_EE(OM53B95E)
Tachometer ................................110
Tachometer settings ..................118
Tail lights ..................................226
Light switch ..........................226
Replacing light bulbs ............493
Talk switch ................................378
Telephone switches ...................378
Theft deterrent system
Alarm ......................................96
Double locking system ...........95
Immobilizer system ................90
Intrusion sensor and tilt sensor ...
99
Tire inflation pressure ...............466
Maintenance data ..................570
Tire inflation pressure display
function ..............................451
Warning light........................510
Tire pressure warning system....451
Function ................................451
Initializing ............................451
Installing tire pressure warning
valves and transmitters .......451
Registering ID codes ............452
Tire pressure warning reset
switch .................................452
Warning light........................510Tires .......................................... 450
Chains .................................. 312
Checking .............................. 450
Emergency tire puncture
repair kit ............................ 531
If you have a flat tire.... 531, 545
Inflation pressure ................. 570
Replacing ............................. 460
Rotating tires........................ 450
Size ...................................... 570
Snow tires ............................ 313
Tire inflation pressure display
function ............................. 451
Tire pressure warning system ....
451
Warning light ....................... 510
Tools ......................................... 460
Top strap ..................................... 75
Towing...................................... 500
Emergency towing ............... 500
Towing capacity .................. 562
Towing eyelet ...................... 501
Trailer towing ...................... 201
Traction battery (hybrid battery) 83
Traction Control (TRC) ............ 293
Traction motor (electric motor) .. 79
Trailer towing ........................... 201
T