display LEXUS RX450h 2018 Owners Manual

704 8-2. Steps to take in an emergency
RX450h_RX450hL _U_OM48F85U■
If “Hybrid System Overheated Reduced Output Power” is shown on the
multi-information display
Stop the vehicle in a safe place.
Stop the hybrid system an d carefully lift the hood.
After the hybrid system has
cooled down, inspect the hoses
and radiator core (radiator) for
any leaks.
Radiator
Cooling fans If a large amount of coolant leaks,
immediately contact your Lexus
dealer.
The coolant level is satisfactory if
it is between the “FULL” and
“LOW” lines on the reservoir.
Reservoir
“FULL” line
“LOW” line
Add coolant if necessary. Water can be used in an emergency
if coolant is unavailable. 1
2
3
1
2
4
1
2
3
5

7058-2. Steps to take in an emergency
8
When trouble arises
RX450h_RX450hL _U_OM48F85UStart the hybrid system and check if “Hybrid System Overheated Reduced
Output Power” is shown on the multi-information display.
If the message does not disappear:
Stop the hybrid system and contact your Lexus dealer.
If the message is not displayed:
Have the vehicle inspected at the nearest Lexus dealer. WARNING ■
To prevent an accident or injury 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 h ood, do not open the hood until the steam
has subsided. The engine compartment may be very hot. ●
After the hybrid system has been turned off, check that the “READY” indicator is off.
When the hybrid system is operating, the gasoline engine may automatically start, or
the cooling fans may suddenly operate even if the gasoline engine stops. Do not
touch or approach rotating parts such as th e fans, which may lead to fingers or cloth-
ing (especially a tie, a scarf or a muffler) getting caught, resulting in serious injury.●
Do not loosen the radiator cap and the coolant reservoir caps wh ile the hybrid system
and radiator are hot.
High temperature steam or coolant could spray out.
NOTICE ■
When adding engine/power control unit coolant
Add coolant slowly after the hybrid system has cooled down sufficiently. Adding cool
coolant to a hot hybrid system too quickly can cause damage to the hybrid system.■
To prevent damage to the cooling system
Observe the following precautions: ●
Avoid contaminating the coolant with foreig n matter (such as sand or dust etc.).●
Do not use any coolant additive. 6

736
RX450h_RX450hL _U_OM48F85U9-2. Customization
When customizing vehicle features, ensure that the vehicle is parked in a safe
place with the shift lever in P and the parking brake set.■
Changing on the audio system screen 
Vehicles with a Lexus Display Audio system
Press the “MENU” button on the Lexus Display Audio controller.
Select “Setup” on the “Menu” screen and select “Vehicle”.
Various setting can be changed. Refer to the list of settings that can be
changed for details. 
Vehicles with a navigation system
Press the “MENU” button on the Remote Touch.
Select on the “Menu” screen and select .
Various setting can be changed. Refer to the list of settings that can be
changed for details. ■
Changing using the multi-information display
→ P. 108Customizable features Your vehicle includes a variety of elec tronic features that can be personalized
to suit your preferences. The settings of these features can be changed using
the multi-information display, on the audio system screen, or at your Lexus
dealer.
Customizing vehicle features 1
2
1
2

7379-2. Customization
9
Vehicle specifications
RX450h_RX450hL _U_OM48F85USome function settings are changed simultaneously with other functions being
customized. Contact your Lexu s dealer for further details.
Settings that can be changed on the audio system screen
Settings that can be changed by your Lexus dealer
Definition of symbols: O = Available, – =Not available ■
Vehicle proximity no tification system ( → P. 75)
■
Gauges, meters and multi-information display ( → P. 96, 101)
* 1
: The default setting varies according to countries.
* 2
:Except F SPORT modelsCustomizable Features 1
2
Function Default setting Customized setting
The volume of vehicle proximity
notification system sound Level 1 Level 2
— O
Level 3 1 2
Function Default setting Customized setting
Language English French
O—
Spanish
Units
* 1
miles (MPG US) miles
(MPG Imperial)
O —
km (L/100 km)
km (km/L)
Color
* 2
Color 1 Color 2
O —
Suggestion function On Off — O 1 2

7459-2. Customization
9
Vehicle specifications
RX450h_RX450hL _U_OM48F85U■
Intuitive parking assist ( → P. 332)
* : When intuitive parking assist is operating. ■
BSM (Blind Spot Monitor) ( → P. 319)Function Default setting Customized setting
Detection distance of the front
center sensor Far Near O O
Detection distance of the rear
center sensor Far Near O O
Buzzer volume 3 1 to 5 O O
Display setting
* All sensors dis-
played Display off O O 1 2
Function Default setting Customized setting
Outside rear view mirror indica-
tor brightness Bright Dim O O
Alert timing for presence of
approaching vehicle (BSM func-
tion only) Intermediate Early
O OLate
Only when in blind
spot
RCTA buzzer volume Level 2 Level 1
O —
Level 3 1 2

768 What to do if... (Troubleshooting)
RX450h_RX450hL _U_OM48F85U●
The seat belt reminder light is flashing
Are the driver and the passengers wearing the seat belts?
( → P. 662, 662)●
The parking brake indicator is on
Is the parking brake released? ( → P. 253)
Depending on the situation, other type s of warning buzzer may also sound.
( → P. 660, 667) ●
Did anyone inside the vehicle open a door during setting the alarm?
The sensor detects it and the alarm sounds. ( → P. 86)
Do one of the following to stop the alarms: • Unlock the doors.
• Turn the power switch to ACCESSORY or ON mode, or start the hybrid system.
●
Is the message displayed on the multi-information display?
Check the message on the multi-information display. ( → P. 667)
●
When a warning light turns on or a wa rning message is displayed, refer to
P. 660, 667. 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

771Alphabetical index
RX450h_RX450hL _U_OM48F85UAlarm ............................................................ 86
Anchor brackets ...................................... 57
Antenna
Radio ........................................................429
Smart access system
with push-button start ................... 158
Anti-lock Brake System (ABS)....... 382
Warning light ........................................ 661
Approach warning.................................314
Armrest ....................................................558
Assist grips .............................................. 559
Audio system (with Lexus
Display Audio System) ...................400
Antenna ..................................................429
Audio input........................................... 409
AUX port.............................................. 409
Bluetooth ®
audio ............................. 459
CD player ..............................................433
iPod .......................................................... 440
MP3/WMA disc ...............................433
Optimal use ........................................... 419
Portable music player ..................... 448
Radio ........................................................426
Setup menu .............................................412
Steering wheel audio
switches .............................................. 406
USB memory ....................................... 444 Audio system
(with navigation system)
* Automatic air conditioning
system ......................................... 507, 522
Air conditioning filter ....................... 625
Rear automatic air conditioning
system .................................................. 522
S-FLOW mode....................................514
Automatic headlight leveling
system .................................................... 260
Automatic High Beam ........................262
Automatic light control system ...... 258
AUX port ................................................ 409
Auxiliary boxes .......................... 539, 544
* : Refer to the “NAVIGATION SYSTEM OWNER’S MANUAL”.

774 Alphabetical index
RX450h_RX450hL _U_OM48F85UChild-protectors.....................................139
Cleaning.......................................580, 584
Aluminum wheels ............................... 581
Exterior................................................... 580
Interior .................................................... 584
Seat belts ............................................... 585
Clock ................................................ 96, 548
Coat hooks.............................................. 559
Compass .................................................. 567
Condenser .............................................. 602
Console box ........................................... 534
Consumption screen ................. 105, 124
Coolant
Capacity .................................................. 715
Checking................................................. 601
Preparing and checking
before winter ................................... 390
Cooling system ...................................... 601
Hybrid system overheating ..........702
Cornering lights .................................... 259
Cruise control
Dynamic radar cruise control
with full-speed range ................... 306
Cup holders ............................................ 535
Curtain shield airbags ........................... 37
Customizable features ....................... 736
Customized mode ............................... 379 Daytime running light system.......... 260
Defogger
Outside rear view mirrors ..............516
Rear window..........................................516
Windshield..............................................516
Differential ................................................ 716
Dimensions ............................................... 710
Dinghy towing ....................................... 238
Display
Dynamic radar cruise control
with full-speed range ...................306
Energy monitor..................................... 124
LKA (Lane-Keeping Assist)......... 302
Multi-information display.................. 101
Warning messages .......................... 667
Do-it-yourself maintenance............. 593
Doors
Automatic door locking and
unlocking system..............................139
Door lock................................................ 138
Outside rear view mirrors ..............193
Power back door ................................ 142
Rear door child-p rotectors ............139
Side doors ...............................................136
Side windows ........................................196 D

776 Alphabetical index
RX450h_RX450hL _U_OM48F85UEmergency, in case of
If a warning buzzer sounds.......... 660
If a warning light turns on.............. 660
If a warning message is
displayed.............................................667
If the 12-volt battery is
discharged ........................................ 695
If the electronic key does not
operate properly.............................692
If the hybrid system will
not start ............................................... 690
If you have a flat tire ..........................673
If you lose your keys ................ 133, 135
If you think something is
wrong .................................................. 659
If your vehicle becomes
stuck ..................................................... 706
If your vehicle has to
be stopped in an
emergency........................................ 653
If your vehicle needs to be
towed................................................... 654
If your vehicle overheats ................702
Energy monitor ....................................... 124 Engine
ACCESSORY mode ..................... 240
Compartment ..................................... 597
Engine switch ...................................... 239
Hood........................................................595
How to start the hybrid
system .................................................. 239
Identification number......................... 712
If your vehicle has to be
stopped in an emergency..........653
Ignition switch (power switch) .... 239
Overheating......................................... 702
Power switch ....................................... 239
Engine coolant
Capacity................................................... 715
Checking ................................................ 601
Preparing and checking
before winter ....................................390
Engine coolant temperature
gauge .........................................................96
Engine oil
Capacity................................................... 713
Checking .............................................. 598
Preparing and checking
before winter ....................................390
Engine oil maintenance data ........... 600
Engine switch ......................................... 239
Enhanced VSC ..................................... 382
EPS
(Electronic Power Steering) ........ 383
Warning light .........................................661
EV drive mode .......................................244
EV indicator ............................................... 76
Event data recorder (EDR).....................11

778 Alphabetical index
RX450h_RX450hL _U_OM48F85UHands-free system
(for cellular phone) .............................461
Head restraints ....................................... 186
Head-up display....................................... 118
Headlight cleaner................................. 267
Headlights ............................................... 258
Automatic headlight leveling ...... 260
Automatic High Beam .................... 262
Light switch .......................................... 258
Replacing light bulbs ........................637
Wattage ....................................................719
Windshield wiper linked
headlight illumination..................... 261
Heated steering wheel ....................... 526
Heaters
Automatic air conditioning
system ..................................... 507, 522
Heated steering wheel ....................526
Outside rear view mirrors .............. 516
Seat heaters ..............................526, 527
High mounted stoplight
Replacing ...............................................637
Hill-start assist control ........................ 382
Hood .......................................................... 595
Open ....................................................... 595
Hooks
Cargo hooks ....................................... 540
Cargo net hooks ............................... 540
Front passenger footwell
hooks ....................................................557
Grocery bag hooks........................... 541
Retaining hooks (floor mat) ............. 28 Horn.............................................................189
HUD (Head-up display)....................... 118
Humidity sensor...................................... 521
Hybrid battery air vent ........................... 79
Hybrid battery (traction battery)
Location .................................................... 78
Specification ........................................... 713
Hybrid system............................................ 74
Emergency shut off system ..............79
Energy monitor/
consumption screen....................... 124
EV drive mode ................................... 244
High voltage components ............... 78
Hybrid System Indicator ................... 99
Hybrid system precautions ............. 78
Hybrid vehicle driving tips ........... 388
If the hybrid system will not
start....................................................... 690
Overheating......................................... 702
Power (ignition) switch................... 239
Regenerative braking ..........................76
Starting the hybrid system............. 239
Vehicle proximity notification
system ..................................................... 75
Hybrid System Indicator .......................99
Hybrid transmission .............................246
If the shift lever cannot be
shifted from P ...................................250
Paddle shift switches............ 247, 248
S mode.................................................... 248H