2018 LEXUS RX450h fuse

TABLE OF CONTENTS
6
RX450h_RX450hL _U_OM48F85U7-1. Maintenance and care
Cleaning and protecting
the vehicle exterior ................580
Cleaning and protecting
the vehicle interior.................. 584
7-2. Maintenance
Maintenance
requirements ............................ 587
General mainte nance..............589
Emission inspection and
maintenance (I/M)
programs.................................... 592
7-3. Do-it-yourself
maintenance
Do-it-yourself service
precautions................................ 593
Hood ............................................... 595
Positioning a floor jack ............ 596
Engine compartment ............... 597
12-volt battery ............................. 605
Tires .................................................... 611
Tire inflation pressure .............. 620
Wheels ........................................... 623
Air conditioning filter ............... 625
Windshield wiper inserts ........ 628
Electronic key battery.............. 630
Checking and replacing
fuses.............................................. 632
Headlight aim .............................. 635
Light bulbs .................................... 637 8-1. Essential information
Emergency flashers .................. 652
If your vehicle has
to be stopped in
an emergency .......................... 653
8-2. Steps to take in
an emergency
If your vehicle needs to be
towed ........................................... 654
If you think something is
wrong........................................... 659
If a warning light turns
on or a warning buzzer
sounds ......................................... 660
If a warning message is
displayed .................................... 667
If you have a flat tire .................. 673
If the hybrid system will
not start ....................................... 690
If the electronic key does
not operate properly ............. 692
If the 12-volt battery is
discharged................................. 695
If your vehicle overheats......... 702
If the vehicle becomes stuck .........7067
Maintenance and care 8
When trouble arises

466 5-9. Bluetooth ®
Phone
RX450h_RX450hL _U_OM48F85UPress the off-hook sw itch on the steer-
ing wheel or select .
Press the on-hook switch on the steering wheel or select . ■
International calls
Depending on the cellular phone in use, re ceived international calls may not be dis-
played correctly.Receiving a call When a call is received, the following screen is displayed together with a
sound.
To answer the phone
To refuse a call

468 5-9. Bluetooth ®
Phone
RX450h_RX450hL _U_OM48F85U 
Phone number containing a “w” symbol
When the “w” symbol is dialed in an outgoing call, you need to go to the
“Release Tones” screen to dial the following digits. Move the controller to the
left and then select “Release Tones”.
Select “Handset Mode” to change from a hands-free call to a cellular phone call
or vice versa.
Press the on-hook switch on the steering wheel or select .
When a call is interrupted by a third pa rty while talking, an incoming call mes-
sage will be displayed.
To talk with the other party:
Press the off-hook sw itch on the steer-
ing wheel or select .
To refuse the call:
Press the on-hook switch on the steer-
ing wheel or select . Every time you press the off-hook switch on the steering wheel or select during
call waiting, you will be sw itched to the other party.■
Transferring calls ●
It is not possible to transfer from hand s-free to the cellular phone while driving.●
If you transfer from the cellular phone to ha nds-free, the hands-free screen will be dis-
played, and you can operate the system using the screen. ●
Transfer method and operation may vary according to the cellular phone used. ●
For operation of the cellular phone in use, see the phone’s manual.■
Call waiting operation
Call waiting operation may di ffer depending on your phone company and cellular
phone.To transfer a call
To hang up
Call waiting

470 5-9. Bluetooth ®
Phone
RX450h_RX450hL _U_OM48F85UMove the controller to the left while on the message screen.
Select “Quick Message” to display the “Quick Message” screen.
Select the desired message and then select “Send”. ■
Editing a quick message
Move the controller to the left while on the message screen.
Select “Quick Message” and move th e cursor to the desired message.
Move the controller to the left and select “Edit”. To return to the default message after editing, select “Default”.
This function is available when the “E-mail Notification Popup” or “SMS/MMS
Notification Popup” are set to on. ( → P. 473)
“Incoming E-mail Display” or “Inco ming SMS/MMS Display” are set to
“Drop-Down”
When E-mail/SMS/MMS are received, the incoming message is displayed
on the upper side of the screen with a sound. 
“Incoming E-mail Display” or “Incoming SMS/MMS Display” are set to “Full
Screen”
When E-mail/SMS/MMS are received, th e incoming message screen is dis-
played with a sound and it can be operated on the screen.
Check the message
Refuse to check the message
Call to receive the message
sender’s phone numberReplying to a message
Receiving a message popup function 1
2
3
1
2
3
1
2
3

4715-9. Bluetooth ®
Phone
5
Lexus Display Audio system
RX450h_RX450hL _U_OM48F85UVolume switch
During an incoming call: Adjusts the
ring tone volume
During speaking on the phone:
Adjusts in call volume The voice guidance volume cannot be
adjusted using this button.
Talk switch
Press: Turns the voice command system on
Press and hold: Turns the voice command system off
On-hook switch
• End call
•Refuse call
Off-hook switch
• Start call
• Receiving
• Phone top screen displayUsing the steering wheel switches The steering wheel switches can be used to operate a connected cellular
phone.
Operating a phone using the steering wheel switches 1
2
3
4

579
7Maintenance and care
RX450h_RX450hL _U_OM48F85U7-1. Maintenance and care
Cleaning and protecting
the vehicle exterior................ 580
Cleaning and protecting
the vehicle interior ................. 584
7-2. Maintenance
Maintenance
requirements.............................587
General maintenance ............. 589
Emission inspection and
maintenance (I/M)
programs ....................................592 7-3. Do-it-yourself
maintenance
Do-it-yourself service
precautions................................593
Hood ...............................................595
Positioning a floor jack ............ 596
Engine compartment ............... 597
12-volt battery .............................605
Tires .................................................... 611
Tire inflation pressure............... 620
Wheels ........................................... 623
Air conditioning filter ............... 625
Windshield wiper inserts ........ 628
Electronic key battery ..............630
Checking and replacing
fuses .............................................. 632
Headlight aim .............................. 635
Light bulbs..................................... 637

593
RX450h_RX450hL _U_OM48F85U 7
Maintenance and care 7-3. Do-it-yourself maintenance
Do-it-yourself service precautions If you perform maintenance by yourself, be sure to follow the correct proce-
dure as given in these sections. Items Parts and tools
12-volt battery con-
dition ( → P. 605) •Grease
• Conventional wrench (for terminal clamp bolts)
Brake fluid level
( → P. 603) • FMVSS No.116 DOT 3 or SAE J1703 brake fluid
• Rag or paper towel
• Funnel (used only for adding brake fluid)
Engine/power con-
trol unit coolant level
( → P. 601) • “Toyota Super Long Life Coolan t” or a similar high quality
ethylene glycol-based non-silicate, non-amine, non-nitrite
and non-borate coolant with long-life hybrid organic acid
technology
For the U.S.A.:
“Toyota Super Long Life Coolant” is pre-mixed with 50%
coolant and 50% deionized water.
For Canada:
“Toyota Super Long Life Cool ant” is pre-mixed with 55%
coolant and 45% deionized water.
• Funnel (used only for adding coolant)
Engine oil level
( → P. 598) • “Toyota Genuine Motor Oil” or equivalent
• Rag or paper towel
• Funnel (used only for adding engine oil)
Fuses ( → P. 632) • Fuse with same amperage rating as original
Headlight aim
*( → P. 635) • Phillips-head screwdriver
Light bulbs
( → P. 637) • Bulb with same number and wattage rating as original
• Flathead screwdriver •Wrench
Radiator and con-
denser ( → P. 602) ⎯
Tire inflation pres-
sure ( → P. 620) • Tire pressure gauge • Compressed air source

5977-3. Do-it-yourself maintenance
7
Maintenance and care
RX450h_RX450hL _U_OM48F85U■
12-volt battery
→ P. 605Engine compartment
Washer fluid tank ( → P. 604)
Brake fluid reservoir ( → P. 603)
Engine oil level dipstick
( → P. 598)
Engine coolant reservoir
( → P. 601)
Power control unit coolant reservoir
( → P. 601) Fuse boxes ( → P. 632)
Radiator ( → P. 602)
Power control unit coolant
radiator ( → P. 602)
Condenser ( → P. 602)
Electric cooling fans
Engine oil filler cap ( → P. 599)1
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