ABS LEXUS RX350 2020 Owner's Manual

4207-2. Steps to take in an emergency
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.426
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
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.381)
If the warning light does not turn off several
minutes after the initia lization has been per-
formed, have the vehicle inspected by your
Lexus dealer immediately.
■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).
■When a tire is replaced with a spare tire
The compact spare tire is not equipped with
a tire pressure warning valve and transmit-
ter. If a tire goes flat , the tire pressure warn-
ing light will not turn off even though the flat
tire has been replaced with the spare tire.
Replace the spare tire with the repaired tire
and adjust the tire inflation pressure. The
tire pressure warning light will go off after a
few minutes.
■Conditions that the tire pressure warn-
ing system may not function properly
 P.374
■Customization
Some functions can be customized.
(  P.470)
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.

4367-2. Steps to take in an emergency
7Confirm it is not loose after tighten-
ing:
1 Push and pull the tire
2 Try rotating
Visually check to ensure tire is not hung on
surrounding parts.
If looseness or misassembly exists, repeat
steps 2 to 7.
8 Repeat step 7, any time the tire is
lowered or disturbed.
9 Stow the jack and all tools.
■The compact spare tire
●The compact spare tire is identified by the
label “TEMPORARY USE ONLY” on
the tire sidewall. Use the compact spare
tire temporarily, and only in an emer-
gency.
●Make sure to check the tire inflation pres-
sure of the compact spare tire. ( P.457)
■When using the compact spare tire
As the compact spare tire is not equipped
with a tire pressure warning valve and trans-
mitter, low inflation pressure of the spare
tire will not be indicated by the tire pressure
warning system. Also, if you replace the
compact spare tire after the tire pressure
warning light comes on, the light remains
on.
■When the compact spare tire is
equipped
When driving with the compact spare tire
installed, the vehicle he ight will be different
than when driving with standard tires.
■If you have a flat front tire on a road cov-
ered with snow or ice
Install the compact spare tire on one of the
rear wheels of the vehicle. Perform the fol-
lowing steps and fit tire chains to the front
tires:
1 Replace a rear tire with the compact
spare tire.
2 Replace the flat front tire with the tire
removed from the rear of the vehicle.
3 Fit tire chains to the front tires.
WARNING
■When using the compact spare tire
●Remember that the compact spare tire
provided is specific ally designed for
use with your vehicle. Do not use your
compact spare tire on another vehicle.
●Do not use more than one compact
spare tire simultaneously.
●Replace the compact spare tire with a
standard tire as soon as possible.
●Avoid sudden acceleration, abrupt
steering, sudden br aking and shifting
operations that cause sudden engine
braking.
■When the compact spare tire is
attached
The vehicle speed may not be correctly
detected, and the following systems may
not operate correctly:
• ABS & Brake assist
•VSC
•TRAC
• Trailer Sway Control
•EPS
•VDIM (if equipped)
• Adaptive Variable Suspension System (if equipped)
• Dynamic radar cruise control with full-speed range

4879-1. For owners
9
For owners
■Traitement des ceintures de sécu-
rité
Nettoyez avec un chiffon ou une
éponge humidifiés avec de l'eau savon-
neuse tiède. Vérifiez régulièrement
que les ceintures ne sont pas usées,
effilochées ou entaillées excessive-
ment.
Entretien et soin
WARNING
■Détérioration et usure des ceintures
de sécurité
Inspectez le système de ceintures de
sécurité régulière ment. Contrôlez
l'absence de coupures, d'effilochages et
de pièces desserrées. N'utilisez pas une
ceinture de sécurité endommagée avant
qu'elle ne soit remplacée. Une ceinture
de sécurité endommagée ne permet pas
de protéger un occupant de blessures
graves ou mortelles.

503Alphabetical Index
Alphabetical Index
A
A/CAir conditioning filter ...............................386
Front automatic air conditioning system......................................................................... 296
Micro dust and pollen filter...................303
Rear automatic air conditioning system ......................................................................... 307
ABS (Anti-lock Brake System)...............277 Warning light .................................................415
ACA (Active Cornering Assist) ........... 278
Active Cornering Assist (ACA) ........... 278
Adaptive Front-lighting System (AFS) .192
Adaptive Variable Suspension System278
AFS (Adaptive Front-lighting System) .192
Air conditioning filter ................................. 386
Air conditioning system Air conditioning filter ...............................386
Front automatic air conditioning system......................................................................... 296
Micro dust and pollen filter...................303
Rear automatic air conditioning system ......................................................................... 307
Airbags Airbag operating conditions................... 33
Airbag precautions for your child ........ 36
Correct driving posture ............................ 25
Curtain shield airbag operating condi- tions .................................................................. 33
Curtain shield airbag precautions ....... 36
Front passenger occupant classification system ............................................................. 39
General airbag precautions ................... 36
Locations of airbags.................................... 30
Modification and disposal of airbags . 38
Side airbag operating conditions ......... 33
Side airbag precautions ............................ 36
Side and curtain shield airbags operating conditions...................................................... 33
Side and curtain shield airbags precau- tions .................................................................. 36 SRS airbags......................................................30
SRS warning light.........................................414
Alarm ....................................................................67 Warning buzzer ...........................................413
Anchor brackets ..................................... 46, 57
Antennas (smart acc ess system with
push-button start)........................................ 113
Anti-lock Brake System (ABS)...............277 Warning light ................................................ 415
Approach warning...................................... 235
Armrest............................................................ 335
Assist grips ..................................................... 335
Audio system-linked display ...................... 83
Automatic headlight leveling system ..... 191
Automatic High Beam ................................193
Automatic light control system............... 190
Automatic transmission ............................. 180 M mode ........................................................... 183
Paddle shift switches .......................182, 183
Auxiliary boxes ................................... 321, 324
Average fuel economy................................. 80
Average vehicle speed ................................ 80
AWD Control....................................................81
B
Back door .......................................................... 101
Back-up light Wattage ......................................................... 458
Back-up lights Replacing light bulbs .....................395, 401
Battery Battery checking ....................................... 369
If the battery is discharged .................... 443
Preparing and checking before winter..........................................................................283
Warning light .................................................414
Blind Spot Monitor (BSM)....................... 239
Bottle holders ................................................ 320
Brake Brake hold ......................................................188
Fluid...................................................... 368, 457
Parking brake ............................................... 185

514Alphabetical Index
V
Vanity lights.................................................... 338Wattage..........................................................458
Vanity mirrors ............................................... 338
VDIM (Vehicle Dynami cs Integrated Man-
agement)...................................................... 278
Vehicle data recording . ...................................6
Vehicle Dynamics Integrated Manage- ment (VDIM).............................................. 278
Vehicle identification number ................ 452
Vehicle Stability Control (VSC) ............277
Ventilators (seat ventil ators).................... 310
VSC (Vehicle Stabilit y Control) ............277
W
Warning buzzers
Approach warning.................................... 235
Brake Override System ...........................415
Door lock.......................................................... 98
Downshifting .......................................183, 184
Drive-Start Control ....................................415
Electric power steering ............................415
Hands off steering wheel warning (LTA)......................................................................... 226
High coolant temperature ......................413
Intuitive parking assist.................... 252, 417
Low engine oil pressure........................... 414
LTA (Lane Tracing Assi st). 218, 221, 417
Open door..................................................... 100
Open window ...............................................146
PKSA (Parking Support Alert) ........... 245
PKSB (Parking Support Brake) .......... 418
Pre-collision braking.................................. 212
RCTA (Rear Cross Traffic Alert) ........ 417
Seat belt ............................................................416
Warning lights.................................................413 ABS ....................................................................415
Brake hold operated indicator .............419
Brake Override System ...........................415
Brake system ................................................. 413
Charging system ......................................... 414 Drive-Start Control.................................... 415
Electric power steering............................ 415
High coolant temperature.......................413
Intuitive parking assist OFF indicator 417
Low engine oil pressure...........................414
Low fuel level ................................................ 416
LTA indicator .................................................417
Malfunction indicator lamp .....................414
Master warning light.................................. 419
Parking brake indicator ........................... 419
PKSB OFF indicator ................................. 418
Pre-collision system................................... 418
RCTA OFF indicator .................................417
Seat belt reminder light............................ 416
Slip indicator .................................................. 418
SRS ......................................................................414
Tire pressure ..................................................417
Warning messages ..................................... 422
Washer Adding.............................................................370
Preparing and checking before winter..........................................................................283
Switch................................................................ 196
Washing and waxing..................................350
Weight Cargo capacity ....................................161, 164
Load limits ...................................................... 164
Weight.............................................................452
Wheels ............................................................. 384 Size .................................................................... 457
Window lock switch ..................................... 147
Windows Power windows ........................................... 145
Rear window defogger.......................... 298
Washer ............................................................ 196
Windshield wiper de-icer ........................ 303
Windshield wiper inserts ..........................388
Windshield wipers Position............................................................. 199
Rain-sensing windshield wipers .......... 196
Replacing a windshield wiper insert 388
Winter driving tips....................................... 283