2019 LEXUS LS500 steering wheel adjustment

4237-2. Steps to take in an emergency
LS500_OM_(U)_1810 7
When trouble arises 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 battery charge becomes insuffi-
cient or the voltage temporarily drops, the
electric power steeri ng system warning
light may come on and the warning buzzer
may sound. ■
When the tire pressure warning light
comes on
Inspect the tires to check if a tire is punc-
tured.
If a tire is punctured:  P.429
If none of the tires are punctured:
Turn the engine switch off then turn it to
IGNITION ON mode. Check if the tire
pressure warning light comes on or blinks. 
If the tire pressure wa rning light blinks for
approximately 1 minute then stays on
There may be a malfunction in the tire
pressure warning syst em. Have the vehicle
inspected by your Lexus dealer immedi-
ately. 
If the tire pressure warning light comes
on
1 After the temperature of the tires has
lowered sufficiently, check the inflation
pressure of each tire and adjust them to
the specified level.
2 If the warning light does not turn off
even after several minutes have
elapsed, check that the inflation pres-
sure of each tire is at the specified level
and perform initialization. (  P.388)
■
The tire pressure warning light may
come on due to natural causes
The tire pressure wa rning light may come
on due to natural causes such as natural air
leaks and tire inflation pressure changes
caused by temperature. In this case, adjust-
ing the tire inflation pressure will turn off the
warning light (after a few minutes). ■
Conditions that the tire pressure warn-
ing system may not function properly
 P.385
WARNING■
If both the ABS and the brake system
warning lights remain on
Stop your vehicle in a safe place immedi-
ately and contact your Lexus dealer.
The vehicle will become extremely
unstable during br aking, and the ABS
system may fail, which could cause an
accident resulting in death or serious
injury. ■
When the electric power steering
system warning light comes on
When the light comes on yellow, the
assist to the power st eering is restricted.
When the light comes on red, the assist
to the power steering is lost and handling
operations of the steering wheel become
extremely heavy.
When steering wheel operations are
heavier than usual, grip the steering
wheel firmly and operate it using more
force than usual. ■
If the tire pressure warning light
comes on
Be sure to observe the following precau-
tions.
Failure to do so could cause a loss of
vehicle control and result in death or
serious injury.
●
Decelerate to the lowest appropriate
speed as soon as possible. Do not
drive over 50 mph (80 km/h).
●
Check and adjust the tire inflation
pressure immediately.
●
If the tire pressure warning light comes
on even after tire inflation pressure
adjustment, it is prob able that you have
a flat tire. Have the flat tire replaced by
the nearest Lexus dealer.

506 Alphabetical Index
LS500_OM_(U)_1810 Seat ventilators ............................................. 326
Seating capacity............................................. 162
Seats
Adjustment............................................. 119, 126
Adjustment precautions ............................ 119
Child seats/child restraint system installa-
tion .................................................................... 45
Cleaning...........................................................361
Driving position memory........................ 130
Front seat refresh system......................... 124
Head restraints .............................................135
Power easy access system .................... 130
Properly sitting in the seat .........................23
Rear seat relaxation system.................... 129
Seat heaters .................................................. 326
Seat position memory .................... 130, 134
Seat ventilators............................................ 326
Secondary Collision Brake ..................... 294
Sensor
Automatic headlight system................... 179
Automatic High Beam system..............182
Inside rear view mirror..............................139
Intuitive parking assist.............................. 257
LTA (Lane Tracing Assist).................... 225
Parking Support Brake function
(rear-crossing vehicles)...................... 282
Parking Support Brake function (static
objects).........................................................277
Radar sensor.............................. 191, 198, 251
Rain-sensing windshield wipers.......... 185
RCTA .............................................................. 264
Service reminder message ..................... 364
Shift lever
Automatic transmission ............................ 167
Shift lever light ................................................331
Shopping bag hooks .................................. 340
Side airbags ...................................................... 29
Side marker lights
Light switch ..................................................... 179
Replacing light bulbs................................404
Side mirrors
Adjustment..................................................... 140 BSM (Blind Sport Monitor)................. 250
Folding................................................................ 141
Linked mirror functi on when reversing
........................................................................... 140
Mirror position memory .......................... 130
RCTA function ............................................263
Side turn signal lights
Replacing light bulbs ............................... 404
Turn signal lever ...........................................173
Side windows .................................................. 142
Smart access system with push-button
start
Antenna location ............................................. 111
Entry functions .............................................. 100
Starting the engine ..................................... 164
Snow mode ....................................................... 171
Snow tires .......................................................300
Spark plug ...................................................... 449
Specifications ................................................ 446
Speedometer ............................................73, 76
Steering lock
Column lock release ................................. 164
Steering lock system warning message
........................................................................... 164
Steering wheel
Adjustment ..................................................... 138
Heated steering wheel ............................326
Meter control switches ............................... 81
Power easy access system .................... 130
Steering wheel position memory........ 130
Stop lights
Replacing light bulbs ............................... 404
Storage features .......................................... 335
Stuck
If the vehicle becomes stuck ................ 443
Suggestion function....................................... 86
Sun visors ........................................................ 346
Sunshade
Roof.................................................................... 145
Switches
Activating the Automatic High Beam182
Automatic High Beam system ............. 182