2015 Lexus GS350 tire pressure reset

19Pictorial index
GS350_OM_OM30F69U_(U)
Driving position memory switches . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .P. 136
Outside rear view mirror switches . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 148
Door lock switches . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 123
Power window switches . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 151
Window lock switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 151
PCS OFF switch
* . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 260
Tire pressure warning reset switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 411
AFS OFF switch
*. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 198
*: If equipped
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GS350_OM_OM30F69U_(U)
4116-3. Do-it-yourself maintenance
6
Maintenance and care
■How to initialize the tire pressure warning system
Park the vehicle in a safe place and turn the engine 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. 541)
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 pressure
level.
Turn the engine switch to IGNITION ON mode.
Press and hold the tire pres-
sure warning reset switch until
the tire pressure warning light
blinks slowly 3 times.
Wait for a few minutes with the engine switch in IGNITION ON
mode and then turn the engine switch off.
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414
GS350_OM_OM30F69U_(U)
6-3. Do-it-yourself maintenance
■If the tread on snow tires wears down below 0.16 in. (4 mm)
The effectiveness of the tires as snow tires is lost.
■Situations in which the tire pressure warning system may not operate properly
●In the following cases, the tire pressure warning system may not operate properly.
• 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.
●Performance may be affected in the following situations.
• Near a TV tower, electric power plant, gas station, radio station, large display, airport or other facility that generates strong radio waves or electrical noise
• When carrying a portable radio, cellular phone, cordless phone or other wire- less communication device
Vehicles with the tire inflation pressure display function: If tire position information
is not correctly displayed due to the radio wave conditions, the display may be
corrected by driving and changing the radio wave conditions.
●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 inflation
pressure adjustment.
●If you have accidentally turned the engine switch off during initialization, it is not
necessary to press the reset switch again as initialization will restart automatically
when the engine switch has been turned to IGNITION 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.
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GS350_OM_OM30F69U_(U)
4156-3. Do-it-yourself maintenance
6
Maintenance and care
■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 properly. If
repeated attempts to record tire inflation pressure settings are unsuccessful, have
the vehicle inspected by your Lexus dealer.
●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.
■Tire pressure warning system certification
XFor vehicles sold in the U.S.A.
●Transmitter
FCC ID: PAXPMVC010
●Initiator
FCC ID: HYQ22AAA
NOTE:
This device complies with part 15 of the FCC Rules. Operation is subject to the fol-
lowing two conditions: (1) This device may not cause harmful interference, and (2)
this device must accept any interference received, including interference that may
cause undesired operation.
FCC WARNING:
Changes or modifications not expressly approved by the party responsible for com-
pliance could void the user’s authority to operate the equipment.
XFor vehicles sold in Canada
●Transmitter
NOTE:
Operation is subject to the following two conditions: (1) this device may not cause
interference, and (2) this device must accept any interference, including interfer-
ence that may cause undesired operation of the device.
●Initiator
NOTE:
This device complies with Industry Canada licence-exempt RSS standard(s).
Operation is subject to the following two conditions: (1) this device may not cause
interference, and (2) this device must accept any interference, including interfer-
ence that may cause undesired operation of the device.
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416
GS350_OM_OM30F69U_(U)
6-3. Do-it-yourself maintenance
CAUTION
■When inspecting or replacing tires
Observe the following precautions to prevent accidents.
Failure to do so may cause damage to parts of the drive train as well as dangerous
handling characteristics, which may lead to an accident resulting in death or seri-
ous 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.
■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.
■Caution regarding interference with electronic devices (vehicles with the tire
inflation pressure display function)
●Users of any electrical medical device other than implantable cardiac pacemak-
ers, cardiac resynchronization therapy-pacemakers or implantable cardioverter
defibrillators should consult the manufacturer of the device for information about
its operation under the influence of radio waves.
Radio waves could have unexpected effects on the operation of such medical
devices.
●People with implantable cardiac pacemak-
ers, cardiac resynchronization therapy-
pacemakers or implantable cardioverter
defibrillators should not come within 17.7 in.
(450 mm) of the tire pressure warning sys-
tem initiators. The radio waves may affect
the operation of such devices.
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4737-2. Steps to take in an emergency
GS350_OM_OM30F69U_(U)
7
When trouble arises
■SRS warning light
This warning light system monitors the airbag sensor assembly, front impact sensors,
side impact sensors (front door), side impact sensors (front), side impact sensors
(rear), driver’s seat position sensor, driver’s seat belt buckle switch, front passenger
occupant classification system, “AIR BAG ON” indicator light, “AIR BAG OFF” indi-
cator light, front passenger’s seat belt buckle switch, seat belt pretensioner assem-
blies, airbags, interconnecting wiring and power sources. (→P. 3 8 )
■Front passenger detection sensor, seat belt reminder and warning buzzer
If luggage is placed on the front passenger seat, the front passenger detection sen-
sor may cause the warning light to flash and the warning buzzer to sound even if a
passenger is not sitting in the seat.
■If the malfunction indicator lamp comes on while driving
First check the following:
●Is the fuel tank empty?
If it is, fill the fuel tank immediately.
●Is the fuel tank cap loose?
If it is, tighten it securely.
The light will go off after several driving trips.
If the light does not go off even after several trips, contact your Lexus dealer as soon
as possible.
■Electric power steering system warning light (warning buzzer)
When the 12-volt battery charge becomes insufficient or the voltage temporarily
drops, the electric power steering system warning light may come on and the warn-
ing buzzer may sound.
■When the tire pressure warning light comes on
Check the tire inflation pressure and adjust to the appropriate level. Pushing the tire
pressure warning reset switch will not turn off the tire pressure warning light.
GS350_OM_OM30F69U_(U).book Page 473 Monday, January 19, 2015 2:53 PM

606Alphabetical index
GS350_OM_OM30F69U_(U)
Steering wheel .........................................145Adjustment ............................................. 145
Audio switches
*
Heated steering wheel ....................345
Power easy access system ............ 136
Steering wheel
position memory.............................. 136
Stop lights
Replacing light bulbs ........................453
Storage feature .....................................330
Stuck If the vehicle becomes stuck ....... 530
Sun visors ................................................. 340
Sun shade Rear...........................................................352
Rear door .............................................. 353
Roof............................................................ 156
Switches
AFS OFF switch .................................. 198
Audio remote control switches
*
BSM (Blind spot monitor) switch.................................................... 267
Cruise control switch.........................214
“DISP” button ......................................... 85
Door lock switches .............................123
Driving mode select switch .......... 243
Driving position memory switches .................................................137
Dynamic radar cruise control switch .................................... 218
Emergency flashers switch .......... 458
Engine switch ......................................... 177
Fog light switch .................................... 201
Garage door opener switches .............................................. 359
Heated steering wheel
switch....................................................345 HUD (Head-up display)
switches ................................................. 92
Ignition switch........................................ 177
Intuitive parking assist
*
Lexus night view switch...................277
Light switches ........................................196
LKA (Lane-Keeping Assist) switch ................................................... 235
Moon roof switches .......................... 155
Outside rear view mirror switches ................................................148
Paddle shift switches......................... 186
PCS OFF switch ................................ 260
Power door lock switch ................... 123
Power window switches ................... 151
Rear sunshade switch ..................... 352
Rear window and outside rear view mirror defoggers
switch ................................................... 324
Seat heater switches ........................ 347
Seat ventilator switches .................. 347
Snow mode switch ............................ 185
“SOS” button .......................................366
Talk switch
*
Telephone switches*
Tilt and telescopic
steering control switch ..................145
Tire pressure warning reset
switch .......................................................411
Trunk closer switch.............................128
Trunk opener switch .......................... 127
Trunk opener main switch ..............128
Vehicle-to-vehicle distance button ..................................................... 221
VSC OFF switch ...............................250
Window lock switch ........................... 151
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607Alphabetical index
GS350_OM_OM30F69U_(U)
Windshield wipers and washer switch .........................202
Tachometer ........................................ 81, 94
Tail lights.....................................................196 Light switch ............................................ 196
Replacing light bulbs ........................453
Welcome light illumination
control ................................................... 107
Talk switch
*
Telephone switches*
Theft deterrent system Alarm........................................................... 72
Engine immobilizer system .............. 70
Tire inflation pressure ...........................541
Maintenance data ............................... 541
Tire inflation pressure display function ...................................................87
Warning light ....................................... 472
Warning message .............................493
Tire information ..................................... 547
Glossary ................................................ 554
Size ........................................................... 550
Tire identification number............. 549
Uniform Tire Quality Grading.............................................. 552
Tire pressure warning system .......... 410
Function ................................................... 410
Initializing ................................................. 410
Installing tire pressure warning valves and transmitters ................. 410
Registering ID codes .........................412 Tire pressure warning reset
switch .......................................................411
Warning light ........................................472
Warning message............................. 493
Tires ........................................................... 408 Chains .....................................................285
Checking .............................................. 408
If you have a flat tire ..........................502
Inflation pressure..................................541
Information............................................ 547
Replacing ............................................... 502
Rotating tires ........................................409
Size .............................................................541
Snow tires .............................................. 287
Spare tire................................................502
Tire inflation pressure display
function................................................... 87
Tire pressure warning system .......410
Warning light ........................................472
Warning message............................. 493
Tools .......................................................... 503
Top tether strap ........................................66
Total load capacity................................. 174
Towing Dinghy towing ....................................... 176
Emergency towing ...........................460
Towing eyelet ...................................... 463
Trailer towing......................................... 175
TRAC (Traction Control)................. 248
T
*: Refer to the “NAVIGATION AND MULTIMEDIA SYSTEM OWNER’S MANUAL”.
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