display LEXUS RX350 2021 Owners Manual
Page 438 of 508
4387-2. Steps to take in an emergency
coolant is unavailable.
6Start the engine and turn the air 
conditioning system on to check 
that the radiator cooling fans oper-
ate and to check for coolant leaks 
from the radiator or hoses.
The fans operate when the air conditioning 
system is turned on immediately after a 
cold start. Confirm that the fans are oper-
ating by checking the fan sound and air 
flow. If it is difficult to check these, turn the 
air conditioning system  on and off repeat-
edly. 
(The fans may not oper ate in freezing tem-
peratures.)
7 If the fans are not operating:
Stop the engine immediately and 
contact your Lexus dealer.
If the fans are operating:
Have the vehicle inspected at the 
nearest Lexus dealer.
8 Check if “Engine Coolant Temp 
High Stop in a Safe Place See 
Owner's Manual” is shown on the 
multi-information display.
If the message does not disappear:
Stop the engine and contact your Lexus 
dealer.
If the message is not displayed:
Have the vehicle inspected at the nearest  Lexus dealer.
WARNING
■When inspecting under the hood of 
your vehicle
Observe the following precautions.
Failure to do so may result in serious 
injury such as burns.
●If steam is seen coming from under the 
hood, do not open the hood until the 
steam has subsided. The engine com-
partment may be very hot.
●Keep hands and clothing (especially a 
tie, a scarf or a muffler) away from the 
fans and belts.
Failure to do so may cause the hands 
or clothing to be caught, resulting in 
serious injury.
●Do not loosen the radiator cap and the 
coolant reservoir cap while the engine 
and radiator are hot.
High temperature steam or coolant 
could spray out.
NOTICE
■When adding engine coolant
Add coolant slowly after the engine has 
cooled down sufficiently. Adding cool 
coolant to a hot engine too quickly can 
cause damage to the engine.
■To prevent damage to the cooling sys-
tem
Observe the following precautions:
●Avoid contaminating the coolant with 
foreign matter (such as sand or dust, 
etc.).
●Do not use any coolant additive. 
Page 461 of 508
4618-2. Customization
8
Vehicle specifications
8-2.Customization
■Changing by using the Remote 
Touch
1 Press the “MENU” button on the 
Remote Touch.
2 Select “Setup” on the menu screen 
and select “Vehicle”.
3 Select “Vehicle Customization” or 
“Drive Mode Customization”.
Various setting can be changed. Refer to 
the list of settings that can be changed for 
details.
This system can also be operated by the 
touch screen.
For details on the Remote Touch, refer 
to the “NAVIGATION AND MULTI-
MEDIA SYSTEM OWNER’S MAN- UAL”.
■Changing by using the meter con-
trol switches
1 Press   or   to select  .
2 Operate the meter control 
switches to select the desired item 
to be customized.
3 According to the display, select the 
desired setting and then press 
.
To go back to the previous screen or exit 
the customize mode, press  .
Some function settings are changed simultaneously with other functions being cus-
tomized. Contact your Lexus  dealer for further details.
Settings that can be changed using the Remote Touch
Settings that can be changed using the meter control switches
Settings that can be changed by your Lexus dealer
Definition of symbols: O = Available, — = Not available
Customizable features
Your vehicle includes a variety of 
electronic features that can be per-
sonalized to suit your preferences. 
The settings of these features can 
be changed by using the meter con-
trol switches, the Remote Touch, or 
at your Lexus dealer.
Customizing vehicle features
WARNING
■During customization
As the engine needs to be running 
during customization, ensure that the 
vehicle is parked in a place with ade-
quate ventilation. In a closed area such as 
a garage, exhaust gases including harm-
ful carbon monoxide (CO) may collect 
and enter the vehicle. This may lead to 
death or a serious health hazard.
NOTICE
■During customization
To prevent battery discharge, ensure that 
the engine is running while customizing 
features.
Customizable Features
A
B
C 
Page 462 of 508
4628-2. Customization
■Gauges, meters and multi-information display (P.72, 77, 81)
*1: For details about each function:  P.85
Function*1Default settingCustomized setting
LanguageEnglishFrenchOO—Spanish
Units*2miles (MPG)
km (km/L)
OO—km (L/100km)
miles (MPG Impe-
rial)
Drive information 1
Current fuel con-sumption
Customizable items:  P.82—O—
Average fuel econ-
omy (after reset)
Drive information 2
Distance (driving  range)
Average vehicle 
speed (after reset)
Drive information 3
Average fuel econ- omy (after refuel)
Elapsed time (after  start)
Clock12-hour display24-hour display—O—
Pop-up displayOnOff—O—
Accent color*3Color 1Color 2OO—
Needle*4Color 1Color 2—O—Color 3
Rev indicator*45000 r/min.
2000 - 6500 r/min.
—O—
Off
Rev peak*4OnOff—O—
Eco Driving Indicator LightOnOff—O—
Suggestion functionOnOff——O
ABC 
Page 463 of 508
4638-2. Customization
8
Vehicle specifications
*2: The default setting varies according to country.
*3:Except F SPORT models
*4:F SPORT models
■Head-up Display*( P.88)
*:If equipped
■Door lock ( P.99, 431)
FunctionDefault settingCustomized setting
Gauge informationNo content
Eco Driving Indica-
tor
—O—
Tachometer
Route guidance to destina-
tion/street nameOnOff—O—
Driving support system displayOnOff—O—
CompassOnOff—O—
Audio system operation statusOnOff—O—
FunctionDefault settingCustomized setting
Unlocking using a mechanical 
key
Driver’s door 
unlocked in one  step, all doors 
unlocked in two  step
All doors unlocked in one step——O
Automatic door locking func-
tionShift position linked 
door locking opera- tionOff
O—OSpeed linked door locking operation
Automatic door unlocking 
functionShift position linked  door unlocking  operationOff
O—ODriver’s door linked door unlocking  operation
ABC
ABC 
Page 469 of 508
4698-2. Customization
8
Vehicle specifications
■PCS (Pre-Collision System) (P.209)
■LTA (Lane Tracing Assist) ( P.216)
■RSA (Road Sign Assist)* ( P.225)
*:If equipped
FunctionDefault settingCustomized setting
PCS (Pre-Collision System)OnOff—O—
Adjust alert timingMiddleEarly—O—Late
FunctionDefault settingCustomized setting
Lane centering functionOnOff—O—
Steering assist functionOnOff—O—
Alert typeSteering wheel 
vibrationBuzzer—O—
Alert sensitivityHighStandard—O—
Vehicle sway warning functionOnOff—O—
Vehicle sway warning sensitiv-
ityStandardHigh—O—Low
FunctionDefault settingCustomized setting
RSA (Road Sign Assist)OnOff—O—
Excess speed notification 
methodDisplay onlyNo notification—O—Display and buzzer
Excess speed notification level1 mph (2 km/h)3 mph (5 km/h)—O—5 mph (10 km/h)
Other notifications method 
(No-entry notification)Display onlyNo notification—O—Display and buzzer
ABC
ABC
ABC 
Page 473 of 508
4738-2. Customization
8
Vehicle specifications
■Seat belt reminder (P.403)
■Vehicle customization
●When the smart access system with 
push-button start is off, the entry unlock 
function cannot be customized.
●When the doors remain closed after 
unlocking the doors and the timer acti-
vated automatic door lock function acti-
vates, signals will be generated in 
accordance with the operation buzzer 
volume and operational signal (Emer-
gency flashers) function settings.
●Some settings can be changed using a 
switch or the Remote Touch. If a setting is 
changed using a switch, the changed set-
ting will not be reflected on the Remote 
Touch until the engine switch is turned off 
and then to IGNITION ON mode.
■Clock settings screen
If the clock adjustment  screen is displayed 
continuously when attempting to change 
the clock settings, the system may be mal-
functioning. Have the vehicle inspected by 
your Lexus dealer.
FunctionDefault settingCustomized setting
Vehicle speed linked seat belt 
reminder buzzerOnOff——O
ABC 
Page 491 of 508
491What to do if... (Troubleshooting)
Is the engine switch in IGNITION 
ON mode?
If you cannot release the shift lever by 
depressing the brake pedal with the engine 
switch in IGNITION ON mode ( P.179)
It is locked automatically to prevent 
theft of the vehicle. ( P.175)
 Is the window lock switch pressed?
The power window except for the one at 
the driver’s seat cannot be operated if the 
window lock switch is pressed. ( P.146)
 The auto power off function will be 
operated if the vehicle is left in 
ACCESSORY or IGNITION ON 
mode (the engine is not running) for 
a period of time. ( P.177)
 The seat belt reminder light is flash-
ing
Are the driver and the passengers wearing 
the seat belts? ( P.406)
 The parking brake indicator is on
Is the parking brake released? ( P.183)
Depending on the situation, other 
types of warning buzzer may also 
sound. ( P.403, 412)
 Did anyone inside the vehicle open 
a door during setting the alarm?
The sensor detects it and the alarm sounds. 
( P.68)
Do one of the following to stop the 
alarms:
 Unlock the doors.
 Turn the engine switch to ACCES-
SORY or IGNITION ON mode, or 
start the engine.
 Is the message displayed on the 
multi-information display?
Check the message on  the multi-informa-
tion display. ( P.412)
 When a warning light turns on or a 
warning message is displayed, refer 
to P.403, 412.
The steering wheel cannot be 
turned after the engine is 
stopped
The windows do not open or 
close by operating the power 
window switches
The engine switch is turned off 
automatically
A warning buzzer sounds during 
driving
An alarm is activated and the 
horn sounds
A warning buzzer sounds when 
leaving the vehicle
A warning light turns on or a 
warning message is displayed
When a problem has occurred
If you have a flat tire 
Page 493 of 508
493Alphabetical Index
Alphabetical Index
A
A/CAir conditioning filter ............................... 376
Front automatic air conditioning system......................................................................... 292
Front seat concentr ated airflow mode 
(S-FLOW)................................................ 300
Micro dust and pollen filter................... 299
Rear automatic air conditioning system .........................................................................303
ABS (Anti-lock Brake System)...............274 Warning light ...............................................405
ACA (Active Cornering Assist) ........... 275
Active Cornering Assist (ACA) ........... 275
Adaptive Front-lighting System (AFS) 190
Adaptive Variable Suspension System275
AFS (Adaptive Front-lighting System) 190
AHB (Automatic High Beam) .................. 191
Air conditioning filter ................................. 376
Air conditioning system Air conditioning filter ............................... 376
Front automatic air conditioning system......................................................................... 292
Front seat concentr ated airflow mode 
(S-FLOW)................................................ 300
Micro dust and pollen filter................... 299
Rear automatic air conditioning system .........................................................................303
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 shie
ld airbags operating 
conditions ...................................................... 33
Side and curtain shield airbags precau- tions .................................................................. 36
SRS airbags......................................................30
SRS warning light...................................... 404
Alarm ................................................................... 68 Warning buzzer ........................................ 403
Anchor brackets ..................................... 46, 57
Antennas (smart acc ess system with 
push-button start)........................................ 115
Anti-lock Brake System (ABS)...............274 Warning light .............................................. 405
Approach warning...................................... 233
Armrest............................................................ 330
Assist grips ..................................................... 330
Audio system-linked display ...................... 85
Automatic headlight leveling system ... 189
Automatic High Beam ................................. 191
Automatic light control system............... 188
Automatic transmission ..............................178 M mode ............................................................. 181
Paddle shift switches ........................ 180, 181
Auxiliary boxes ..................................... 317, 319
Average fuel economy................................. 82
Average vehicle speed ................................ 82
AWD Control.................................................. 83
B
Back door ........................................................ 103
Back-up light Wattage ..........................................................449
Back-up lights Replacing light bulbs .....................385, 391
Battery Battery checking ........................................363
If the battery is discharged ....................433
Preparing and checking before winter......................................................................... 280
Warning light .............................................. 404
Blind Spot Monitor (BSM)....................... 236 
Page 494 of 508
494Alphabetical Index
Bottle holders..................................................316
BrakeBrake hold...................................................... 186
Fluid ...................................................... 362, 447
Parking brake ............................................... 183
Warning light ...............................................403
Brake assist .....................................................274
Break-in tips.................................................... 155
Brightness control Instrument panel light control ................80
BSM (Blind Spot Monitor)....................... 236
Buzzer Hands off steering wheel warning (LTA)......................................................................... 223
C
Care Exterior ........................................................... 344
Interior ............................................................. 347
Seat belts........................................................ 347
Wheels and wheel ornaments............ 344
Cargo capacity.....................................159, 162
Cargo hooks ................................................... 317
Cargo net hooks ............................................ 317
Center Display .............................................288
Chains ................................................................281
Child restraint system Fixed with a LATCH system .................. 54
Fixed with a seat belt...................................50
Front passenger occupant classification system ............................................................. 39
Points to remember .................................... 45
Riding with children ..................................... 45
Types of child restraint system installation  method ........................................................... 46
Using an anchor bracket .......................... 57
Child safety Airbag precautions...................................... 36
Battery precautions ......................364, 436
Child restraint system................................. 46
Heated steering wheel and seat heater precautions................................................306 How your child should wear the seat belt
............................................................................. 27
Moon roof precautions............................ 148
Panoramic moon roof precautions ..... 151
Power back door precautions ............. 103
Power window lock switch .................... 146
Power window precautions .................. 145
Rear door child-protectors ................... 102
Seat belt extender precautions.............. 27
Seat belt precautions .................................. 45
Child-protectors............................................102
Cleaning Exterior............................................................ 344
Interior ............................................................. 347
Radar sensor ................................................203
Seat belts ........................................................ 347
Wheels and wheel ornaments ............344
Clock ..........................................................77, 331
Coat hooks.......................................................331
Coin box............................................................316
Compass ......................................................... 340
Condenser ..................................................... 362
Console box ....................................................314
Consumption screen .................................... 92
Cooling system...............................................361 Engine overheating................................... 437
Cornering lights ............................................ 190 Replacing light bulbs ............................... 385
Cruise control Dynamic radar cruise control with full-speed range ...................................... 227
Cup holders .....................................................315
Current fuel consumption .......................... 82
Curtain shield airbags .................................. 30
Customizable features ................................461
D
Daytime running light system .................. 188
Defogger Outside rear view mirrors..................... 294
Rear window ................................................ 294
Windshield .................................................... 294 
Page 495 of 508
495Alphabetical Index
DifferentialRear differential oil .................................... 447
Dimension ...................................................... 442
Dinghy towing................................................. 173
Display Center Display............................................288
Dynamic radar cruise control with full-speed range .......................................227
Head-up display ...........................................88
Intuitive parking assist.............................. 244
LTA (Lane Tracing Assist)...................... 221
Multi-information display ............................81
RCTA ..............................................................250
Warning message....................................... 412
Distance until next engine oil change .... 80
Do-it-yourself maintenance ......................351
Door courtesy lights ................................... 309 Wattage.......................................................... 449
Door lock Power back door........................................ 103
Side doors ........................................................ 99
Smart access system with push-button start ................................................................... 115
Wireless remote control........................... 97
Door pockets ..................................................316
Doors Automatic door lock ing and unlocking 
system ............................................................102
Door glasses .................................................. 144
Door lock warning buzzer .................... 100
Open door warning buzzer ..................102
Outside rear view mirrors ........................141
Rear door child-protectors ....................102
Side doors ........................................................ 99
Drive distance .................................................. 82
Driver’s seat position memory Driving position memory.........................133
Memory recall function ............................135
Power easy access system .....................133
Drive-start control ....................................... 155
Driving Break-in tips .................................................. 155 Correct driving posture ............................ 25
Driving mode select switch .................... 271
Procedures .................................................... 154
Winter drive tips ........................................ 280
Driving assist system information ............ 85
Driving information disp lay ........................ 82
Driving position memory............................133 Memory recall function............................ 135
Power easy access system .................... 133
Driving range ................................................... 82
Dynamic radar cruise control with  full-speed range .........................................227Warning message .....................................235
Dynamic Torque Control AWD system .......................................................................... 275
E
Eco Driving Indicator............................83, 92
Eco Driving Indicator Light ........................ 83
EDR (Event data recorder) ............................7
Elapsed time ..................................................... 82
Electric Power Steering (EPS) .............. 275 Warning light .............................................. 405
Electronic key .................................................. 96 Battery-saving function.............................. 116
If the electronic key does not operate properly .........................................................431
Replacing the battery ............................... 379
Electronic sunshade Jam protection function ........................... 150
Operation ....................................................... 149
Emergency flashers .................................... 394
Emergency, in case of If a warning buzzer sounds.................. 403
If a warning light turns on...................... 403
If a warning message is displayed .......412
If the battery is discharged ....................433
If the electronic key does not operate properly .........................................................431
If the engine will not start........................428
If the fuel filler do or cannot be opened
......................................................................... 430