2018 LEXUS LS500H snow chains

398 6-3. Do-it-yourself maintenance
LS500h_OM_OM50F42U_(U) before serious problems arise.
 The tire pressure detected by the
tire pressure warning system can be
displayed on the multi-information
display. ( → P.86)
 If the tire pressure drops below a
predetermined level, the driver is
warned by a screen display and a
warning light. ( → P.431)
■
Routine tire inflation pressure checks
The tire pressure warning system does not
replace routine tire inflation pressure
checks. Make sure to check tire inflation
pressure as part of your routine of daily
vehicle checks.
■
Tire inflation pressure
●
It may take a few minutes to display the
tire inflation pressure after the power
switch is turned to ON mode. It may also
take a few minutes to display the tire infla-
tion pressure after inflation pressure has
been adjusted.
●
Tire inflation pressu re changes with tem-
perature. The displayed values may also be different from the values measured
using a tire pressure gauge. ■
Situations in which the tire pressure
warning system may not operate prop-
erly ●
In the following cases, the tire pressure
warning system may not operate prop-
erly.
• If non-genuine Lexus wheels are used.
• If a tire has been replaced with a tire that
is not an OE (Original Equipment) tire.
• If a tire has been replaced with a tire that
is not of the specified size.
• If tire chains, etc. are installed.
• 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 vehi-
cle, particularly around the wheels or
wheel housings.
• If the tire inflation pressure is much higher
than the specified level.
• If wheels not equipped with tire pressure
warning valves and transmitter are used.
• If the ID code on the tire pressure warn-
ing valves and transmitters is not regis-
tered in the tire pressure warning
computer. ●
Performance may be af fected in the fol-
lowing situations.
• When driving near a TV tower, electric
power plant, gas stat ion, radio station,
large display, airport or other facility that
generates strong radi o waves or electri-
cal noise
• When carrying a portable radio, cellular
phone, cordless phone or other wireless
communication device
If tire position information is not correctly
displayed due to the radio wave conditions,
the display may be corrected by changing
the location of the vehicle as the radio wave
conditions may change.
●
When the vehicle is stopped, the time
taken for the warning to start or turn off
may be longer.
●
When the inflation pressure of a tire
drops rapidly, for example when a tire has
burst, the warning may not operate.

522 Alphabetical Index
LS500h_OM_OM50F42U_(U) Tail lights
Light switch .................................................... 185
Replacing light bulbs.................................. 417
Theft deterrent system
Alarm .................................................................. 68
Immobilizer system...................................... 66
Tire inflation pressure
Maintenance data...................................... 466
Tire inflation pressu re display function
......................................................................... 397
Warning light .................................................431
Tire information .............................................472
Glossary......................................................... 475
Size.................................................................... 473
Tire identification number ..................... 473
Uniform Tire Quality Grading............ 474
Tire pressure display .................................. 397
Tire pressure warning system
Function .......................................................... 397
Initializing ........................................................ 401
Installing tire pressure warning valves
and transmitters ....................................... 401
Registering ID codes ...............................403
Warning light .................................................431
Tires
Chains .............................................................. 310
Checking .......................................................395
If you have a flat tire .................................. 442
Inflation pressure....................................... 408
Information .................................................... 472
Replacing .......................................................405
Rotating tires ................................................ 397
Run-flat tires ..................................... 397, 442
Size.................................................................... 466
Snow tires ......................................................309
Tire inflation pressu re display function
......................................................................... 397
Tire pressure warning system ............. 397
Warning light .................................................431
Top tether strap............................................... 55
Total load capacity ...................................... 460 Towing
Dinghy towing ...............................................167
Emergency towing.................................... 422
Towing eyelet...............................................425
Trailer towing ................................................ 166
TRAC (Traction Control) ........................ 303
Traction battery (hybrid battery)
Hybrid battery (traction battery) air vents
............................................................................. 64
Location ...............................................................61
Specification ................................................. 462
Warning message ........................................ 64
Traction Control (TRAC) ........................ 303
Traction motor (electric motor) ............... 58
Trailer towing ..................................................166
Transmission
Driving mode select switch ................. 298
Hybrid transmission....................................174
M mode ............................................................179
Paddle shift switches ....................... 178, 179
Snow mode..................................................... 177
Trip meters ................................................ 79, 84
Trunk .................................................................... 112
Hands Free Power Trunk Lid................. 115
Internal trunk release lever....................... 117
Power trunk opener and closer ............ 114
Smart access system with push-button
start ................................................................... 115
Trunk closer switch ...................................... 115
Trunk easy closer.......................................... 116
Trunk features ............................................. 348
Trunk grip ......................................................... 116
Trunk lid light................................................... 116
Trunk light ......................................................... 116
Trunk opener main switch........................ 118
Trunk opener switch ................................... 114
Wireless remote control ........................... 115
Trunk lid light .................................................... 116
Trunk light .......................................................... 116
Turn signal lights
Replacing light bulbs ..................................417
Turn signal lever .......................................... 180