3896-3. Do-it-yourself maintenance
LS500_OM_OM50F54U_(U) 6
Maintenance and care before serious problems arise.
The tire pressure detected by the
tire pressure warning system can be
displayed on the multi-information
display. ( → P.76)
If the tire pressure drops below a
predetermined level, the driver is
warned by a screen display and a
warning light. ( → P.422)
■
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 engine
switch is turned to IGNITION ON mode.
It may also take a few minutes to display
the tire inflation pres sure 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.
508 Alphabetical Index
LS500_OM_OM50F54U_(U) Installing tire pressure warning valves
and transmitters ...................................... 392
Registering ID codes ............................... 394
Warning light ............................................... 422
Tires
Chains ............................................................ 300
Checking .......................................................386
If you have a flat tire .................................. 432
Inflation pressure........................................399
Information ....................................................459
Replacing .......................................................396
Rotating tires ............................................... 388
Run-flat tires .................................... 388, 432
Size.................................................................... 454
Snow tires ...................................................... 299
Tire inflation pressu re display function
........................................................................ 388
Tire pressure warning system ............ 388
Warning light ............................................... 422
Top tether strap............................................... 55
Total load capacity ...................................... 448
Towing
Dinghy towing .............................................. 159
Emergency towing ..................................... 412
Towing eyelet ................................................415
Trailer towing ................................................ 159
TRAC (Traction Control) ........................ 294
Traction Control (TRAC) ........................ 294
Trailer towing ..................................................159
Transmission
Automatic transmission ............................163
Driving mode select switch ..................289
M mode ........................................................... 168
Paddle shift switches ....................... 167, 168
Snow mode .................................................... 167
Trip meters ................................................ 70, 75
Trunk .................................................................. 100
Hands Free Power Trunk Lid .............. 103
Internal trunk release lever .................... 105
Power trunk opener and closer ...........102
Smart access system with push-button
start ................................................................. 103 Trunk closer switch .................................... 104
Trunk easy closer........................................ 104
Trunk features ..............................................339
Trunk grip ....................................................... 104
Trunk lid light................................................. 104
Trunk light ....................................................... 104
Trunk opener main switch...................... 106
Trunk opener switch ................................. 102
Wireless remote control ......................... 103
Trunk lid light .................................................. 104
Trunk light ........................................................ 104
Turn signal lights
Replacing light bulbs ............................... 408
Turn signal lever .......................................... 169
U
USB charging ports.................................... 342
V
Vanity lights.................................................... 345
Vanity mirrors ............................................... 345
Variable Gear Ratio Steering (VGRS)294
VDIM (Vehicle Dynamics Integrated Man-
agement)...................................................... 295
Vehicle data recordings ..................................6
Vehicle Dynamics Integrated Manage-
ment (VDIM).............................................. 295
Vehicle identification number ................ 448
Vehicle Stability Control (VSC) ........... 294
Vehicle sway warning display ................... 80
Ventilators (seat ventilators)................... 326
VGRS (Variable Gear Ratio Steering)294
VSC (Vehicle Stability Control) ........... 294
W
Warning buzzers
ABS ...................................................................420
Airbags............................................................. 419
Approach warning.................................... 247
Brake hold .....................................................425
