2015 LEXUS NX300h fuses

TABLE OF CONTENTS
6
NX300h_U_OM78007U 6-4. Other interior features
Other interior features ............ 455
• Sun visors ................................ 455
• Vanity mirrors ........................ 455
• Clock ........................................ 456
• Power outlet (12 VDC)...... 456
• Power outlet (120 VAC) ....457
• Wireless charger.................. 458
• Armrest.................................... 465
• Assist grips ............................. 465
• Coat hooks ............................. 466
Garage door opener ................467
Compass ........................................473
Safety Connect............................ 477
7-1. Maintenance and care
Cleaning and protecting
the vehicle exterior ................ 484
Cleaning and protecting
the vehicle inte rior..................488
7-2. Maintenance
Maintenance
requirements ..............................491
General maintenance.............. 494
Emission inspection and
maintenance (I/M)
programs .....................................497 7-3. Do-it-yourself maintenance
Do-it-yourself service
precautions................................ 498
Hood ...............................................500
Positioning a floor jack.............. 501
Engine compartment ............... 502
12-volt battery ...............................512
Tires....................................................516
Tire inflation pressure ............... 525
Wheels ........................................... 528
Air conditio ning filter ............... 530
Electronic key battery.............. 532
Checking and replacing
fuses.............................................. 534
Light bulbs .................................... 538
8-1. Essential information
Emergency flashers .................. 556
If your vehicle has to
be stopped in an
emergency .................................5577
Maintenance and care 8
When trouble arises

483
7Maintenance and care
NX300h_U_OM78007U 7-1. Maintenance and care
Cleaning and protecting
the vehicle exterior.................484
Cleaning and protecting
the vehicle interior ................. 488
7-2. Maintenance
Maintenance
requirements.............................. 491
General maintena nce .............. 494
Emission inspection and
maintenance (I/M)
programs .....................................497
7-3. Do-it-yourself maintenance
Do-it-yourself service
precautions ................................ 498
Hood .............................................. 500
Positioning a floor jack .............. 501
Engine compartment ...............502
12-volt battery............................... 512
Tires ................................................... 516
Tire inflation pressure ............... 525
Wheels ........................................... 528
Air conditioning filter ...............530
Electronic key battery .............. 532
Checking and replacing
fuses ..............................................534
Light bulbs.....................................538

498 7-3. Do-it-yourself maintenance
NX300h_U_OM78007UDo-it-yourself service precautions If you perform maintenance by yourself, be sure to follow the correct proce-
dure as given in these sections. Items Pa r t s a n d t o o l s
12-volt battery con-
dition (  P. 5 1 2 ) •Grease
• Conventional wrench (for terminal clamp bolts)
Brake fluid level
(  P. 5 1 0 ) • 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. 5 0 8 ) • “Toyota Super Long Life Coolant” 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 Coolant” is pre-mixed with 55%
coolant and 45% deionized water.
• Funnel (used only for adding coolant)
Engine oil level
(  P. 5 0 4 ) • “Toyota Genuine Motor Oil” or equivalent
•Rag or paper towel
• Funnel (used only for adding engine oil)
Fuses (  P. 5 3 4 ) • Fuse with same amperage rating as original
Light bulbs
(  P. 5 3 8 ) • Bulb with same number and wattage rating as original
• Phillips-head screwdriver •Flathead screwdriver
•Wrench
Radiator and con-
denser (  P. 5 0 9 ) 
Tire inflation pres-
sure (  P. 5 2 5 ) •Tire pressure gauge • Compressed air source
Wa s h e r f l u i d
(  P. 511) • Water or washer fluid containi ng antifreeze (for winter use)
• Funnel (used only for adding water or washer fluid)

534 7-3. Do-it-yourself maintenance
NX300h_U_OM78007UChecking and replacing fuses Turn the power switch off.
Open the fuse box cover.If any of the electrical components do not operate, a fuse may have blown. If
this happens, check and replace the fuses as necessary. 1
2 
Engine compartment: type A fuse
box 
Engine compartment: type B fuse
box
Push the tab in and lift the lid off. Push the tab in and lift the lid off. 
Left side instrument panel
Remove the lid.

536 7-3. Do-it-yourself maintenance
NX300h_U_OM78007U Check if the fuse is blown.
Normal fuse
Blown fuse Replace the blown fuse with a new fuse of an appropriate amperage rating. The
amperage rating can be found on the fuse box lid.
■
After a fuse is replaced ●
If the lights do not turn on even after the fuse has been replaced, a bulb may need
replacement. (  P. 5 3 8 )●
If the replaced fuse blows again, have the vehicle inspected by your Lexus dealer. ■
If there is an overload in a circuit
The fuses are designed to blow, protec ting the wiring harness from damage.■
When replacing light bulbs
Lexus recommends that you use genuine Lexu s products designed for this vehicle.
Because certain bulbs are connected to circui ts designed to prevent overload, nongenu-
ine parts or parts not designed for this vehicle may be unusable. 4
1
2
Ty p e A 
Ty p e B
Ty p e C 
Ty p e D

5377-3. Do-it-yourself maintenance
7
Maintenance and care
NX300h_U_OM78007U WA R N I N G ■
To prevent system breakdowns and vehicle fire
Observe the following precautions.
Failure to do so may cause damage to the vehicle, and possibly a fire or injury.●
Never use a fuse of a higher amperage rati ng than that indicated, or use any other
object in place of a fuse. ●
Always use a genuine Lexus fuse or equivalent.
Never replace a fuse with a wire, even as a temporary fix. ●
Do not modify the fuses or fuse boxes. ■
Fuse box near the power control unit
Never check or replace the fu ses as there are high voltage parts and wiring near the
fuse box.
Doing so may cause electric shock, re sulting in death or serious injury.
NOTICE ■
Before replacing fuses
Have the cause of electrical overload determ ined and repaired by your Lexus dealer as
soon as possible.

668 Alphabetical index
NX300h_U_OM78007U Flat tire ...................................................... 575
Floor mats ................................................... 28
Fluid
Brake ......................................................... 614
Transmission.......................................... 614
Washer ...................................................... 511
Fog lights
Replacing light bulbs ....................... 552
Switch....................................................... 227
Front passenger occupant
classification system ............................ 53
Front passenger’s seat belt
reminder light ..................................... 567
Front seats .................................................146
Adjustment ............................................. 146
Cleaning ................................................ 488
Correct driving posture ....................30
Driving position memory ................ 154
Head restraints ..................................... 158
Power easy access system ............ 154
Seat heaters ......................................... 440
Seat position memory....................... 154
Front side marker lights
Light switch ............................................ 219
Replacing light bulbs ........... 545, 552
Wattage ....................................................617 Front turn signal lights
Replacing light bulbs .......................545
Turn signal lever ................................... 212
Wattage ................................................... 617
Fuel
Capacity.................................................. 610
Fuel gauge ................................................97
Gas station information................. 680
Information............................................. 618
Refueling ................................................ 236
Type........................................................... 610
Fuel filler door.........................................236
Refueling ................................................ 236
When the fuel filler door
cannot be opened ......................... 238
Fuses.......................................................... 534
Garage door opener........................... 467
Gas station information ..................... 680
Gauges......................................................... 97
Glove box ................................................ 447
Grocery bag hooks............................... 451F
G

673Alphabetical index
NX300h_U_OM78007U Power easy access system .................154
Power outlets ......................................... 456
Power steering (Electric Power
Steering system) ................................305
Warning light ...................................... 566
Power switch ........................................... 201
Power windows
Door lock linked window
operation ..............................................167
Jam protection function ....................167
Operation ............................................... 166
Window lock switch.......................... 166
Pre-Collision System (PCS)
Function ................................................... 310
PCS switch............................................... 311
Warning light ...................................... 566
Warning message ............................. 572
Radar cruise control (dynamic
radar cruise control) ........................ 240
Radar cruise control
(dynamic radar cruise control
with full-speed range) ..................... 253
Radiator ....................................................509
Radio............................................................361
Rear Cross Traffic Alert ......................316
Rear seat
Folding down the rear
seatbacks ............................................. 148 Rear side marker lights
Light switch............................................. 219
Replacing light bulbs ....................... 552
Rear turn signal lights
Replacing light bulbs ....................... 547
Turn signal lever ................................... 212
Wattage ................................................... 617
Rear view mirror
Inside rear view mirror....................... 161
Outside rear view mirrors ..............163
Rear window defogger ...................... 435
Rear window wiper ..............................234
Refueling...................................................236
Capacity.................................................. 610
Fuel types................................................ 610
Opening the fuel tank cap ............ 236
When the fuel filler door
cannot be opened ......................... 238
Regenerative braking............................. 79
Remote Touch
* Replacing
Electronic key battery ..................... 532
Fuses ........................................................ 534
Light bulbs.............................................538
Tires .......................................................... 575
Resetting the message indicating
maintenance is required .................492
Reporting safety defects
for U.S. owners ...................................646
Road accident cautions ........................ 84R
* : Refer to the “NAVIGATION SYSTEM OWNER’S MANUAL”.