2015 Lexus GS F snow chains

4706-3. Do-it-yourself maintenance
GS350_200t_GS F_OM_OM30E87E_(EE)
■Situations in which the tire pressure warning system may not operate properly (vehi-
cles with the tire pressure warning system)
●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.
• 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 wheelhousings.
• If the tire inflation pressure is extremely higher than the specified level.
• If the spare tire is in a location subject to poor radio wave signal reception.
*• If a large metallic object which can interfere with signal reception is put in the trunk.*• If wheel without the tire pressure warning valve and transmitter are used.
• If the ID code on the tire pressure warning valves and transmitters is not registered in the tire pressure warning computer.
*: GS350/GS200t with a full-size spare tire only
●Performance may be affected in the following situations.
• Near a TV tower, electric power plant, gas station, radio station, large display, air-
port 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
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 (vehicles with the tire pressure warning system)
●Make sure to carry out initialization afte r adjusting the tire inflation pressure.
Also, make sure the tires are cold before carry ing out initialization or tire inflation pres-
sure adjustment.
●If you have accidentally turned the engine swit ch off during initialization, it is not neces-
sary to manually restart the initialization ag ain, as initialization will restart automatically
the next time the engine switch is turned to IGNITION ON mode.
●If you accidentally perform initialization when initialization is not necessary, adjust the
tire inflation pressure to the specified leve l when the tires are cold, and conduct initial-
ization again.
■Warning performance of the tire pressure warning system (if equipped)
The warning of the tire pressu re warning system will change in accordance with the con-
ditions 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.

5637-2. Steps to take in an emergency
7
When trouble arises
GS350_200t_GS F_OM_OM30E87E_(EE)
Firmly tighten each wheel nut two or
three times in the order shown in the
illustration.
Tightening torque:
103 N•m (10.5 kgf•m, 76 ft•lbf)
Vehicles with a full-size spare tire:
Reinstall the wheel ornament.
Stow the flat tire, tire jack and all tools.
■The spare tire (GS350/GS200t with compact spare tire, and GS F)
●GS350/GS200t: The spare tire is identified by the label “TEMPORARY USE ONLY”
on the tire sidewall.
●Use the spare tire temporarily, and only in an emergency.
●Make sure to check the tire inflation pressure of the spare tire. (→P. 6 2 3 )
■When using the spare tire* (vehicles with the tire pressure warning system)
As the spare tire is not equipped with a tire pressure warning valve and transmitter, low
inflation pressure of the spare tire will not be indicated by the tire pressure warning sys-
tem. Also, if you replace the spare tire after the tire pressure warning light comes on, the
light remains on.
*: GS350/GS200t with compact spare tire, and GS F
■When the spare tire is equipped (GS350/G S200t with compact spare tire, and GS F)
The vehicle may become lower when driving with the spare tire compared to when driv-
ing with standard tires.
■If you have a flat rear tire on a road covered with snow or ice (vehicles with front and
rear tires of the same size and compact spare tire only)
Install the compact spare tire on one of the front wheels of the vehicle. Perform the fol-
lowing steps and fit tire chains to the rear tires: Replace a front tire with the compact spare tire.
Replace the flat rear tire with the tire removed from the front of the vehicle.
Fit tire chains to the rear tires.
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5
6
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665Alphabetical index
GS350_200t_GS F_OM_OM30E87E_(EE)
Tires ............................................................ 465Chains .....................................................383
Checking ...............................................465
Emergency tire puncture
repair kit ..............................................567
If you have a flat tire ............... 551, 567
Inflation pressure................................ 623
Replacing ................................................ 551
Rotating tires ........................................466
Size............................................................ 623
Snow tires ............................................. 385
Spare tire................................................. 551
Tire inflation pressure display function ................................................ 467
Tire pressure warning system ..... 467
Warning light ........................................ 515
Warning message.............................. 518
Tools ............................................... 552, 568
Top strap ...................................................... 81
Torque Vectoring Differential
(TVD)...................................................... 372
Towing .......................................................504
Emergency towing........................... 504
Towing capacity ................................ 606
Towing eyelet ......................................507
Trailer towing ............................. 231, 232
Traction Control (TRC) ..................... 374
Trailer towing ............................... 231, 232 Transmission........................................... 245
Automatic transmission.................. 245
Driving mode select switch.......... 356
If the shift lever cannot be
shifted from P...................................585
M mode.................................................. 248
Paddle shift switches......................... 247
TRC (Traction Control)
Function...................................................374
TRC OFF switch ............................... 376
Trip meters .......................................108, 113
Trunk............................................................166 Jam protection function ..................... 171
Luggage security system ................168
Open trunk warning message ...............................................518
Power trunk lid ..................................... 166
Smart entry & start system ............. 166
Trunk closer switch ............................ 167
Trunk easy closer ................................168
Trunk features ...................................... 422
Trunk grip................................................ 167
Trunk light ...............................................168
Trunk opener main switch ..............168
Trunk opener switch.......................... 166
Trunk storage extension .................. 431
Wireless remote control ................. 154
Trunk light ................................................. 168
Trunk light ...............................................168
Wattage ................................................. 625
TVD (Torque Vectoring Differential).......................................... 372
*: Refer to the “NAVIGATION AND MULTIMEDIA SYSTEM OWNER’S MANUAL”.