fuse Lexus GX460 2012 Owner's Guide

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4-3. Do-it-yourself maintenance
4
Maintenance and care
GX460_U.S.A. (OM60J00U)
■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. 6 6 2 )
●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, protecting the wiring harness from damage.
CAUTION
■To prevent system breakdowns and vehicle fire
Observe the following precautions.
Failure to do so may cause damage, and possibly a fire or injury.
●Never use a fuse of a higher amperage rating than 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.
This can cause extensive damage or even fire.
●Do not modify fuses or the fuse box.
NOTICE
■Before replacing fuses
Have the cause of electrical overload determined and repaired by your Lexus
dealer as soon as possible.

5
When trouble arises
735
5-2. Steps to take in an emergency
GX460_U.S.A. (OM60J00U)
If the engine will not start
If the engine will not start even though correct starting procedures are
being followed (
→P. 179), consider each of the following points:
■The engine will not start even when the starter motor operates
normally
One of the following may be the cause of the problem:
● There may not be sufficient fuel in the vehicle’s tank.
Refuel the vehicle.
● The engine may be flooded.
Try to restart the engine once more following correct starting
procedures. ( →P. 1 7 9 )
● There may be a malfunction in the engine immobilizer system.
(→ P. 115)
■ The starter motor turns over slowly, interior lights and headlights
are dim, or the horn does not sound or sounds at a low volume
One of the following may be the cause of the problem:
● The battery may be discharged. ( →P. 74 1 )
● The battery terminal connections may be loose or corroded.
■ The starter motor does not turn over
The engine starting system may be malfunctioning due to an electri-
cal problem such as an open circuit or a blown fuse. However, an
interim measure is available to start the engine. ( →P. 7 3 9 )

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Alphabetical index
GX460_U.S.A. (OM60J00U)
Floor mats ................................................556
FluidBrake..........................................................619
Power steering...................................... 621
Washer ................................................... 627
Fog lights
Replacing light bulbs........................666
Switch ...................................................... 233
Wattage.................................................. 763
Footwell light............................................ 519
Four-wheel drive system ................... 322
Front passenger occupant
classification system .......................... 139
Front passenger’s seat belt
reminder light...................................... 692
Front seats
Adjustment............................................... 63
Driving position memory.................. 78
Front side marker light Replacing light bulbs........................ 667
Wattage.................................................. 763
Front turn signal lights
Replacing light bulbs....................... 668
Switch ........................................................ 192
Wattage.................................................. 763
Fuel
Capacity................................................. 754
Fuel gauge ............................................. 195
Fuel pump shut off system ............684
Gas station information..................836
Information............................................ 764
Refueling ................................................. 109 Fuel door ................................................... 109
Fuel filler door ......................................... 109
Fuel pump shut off system................. 684
Fuses .......................................................... 647
Garage door opener .......................... 567
Gas station information .....................836
Gauges ...................................................... 195
Glove box ................................................ 525
Glove box light ...................................... 525
Hands-free system for cellular
phones
*................................................485
Hazard lights
Switch ...................................................... 676
Head restraints
Adjustment ...............................................82
Headlights cleaner............................... 245
Headlights Adaptive front lighting
system...................................................223
Discharge headlights
precautions ........................................674
Replacing light bulbs ....................... 663
Switch ........................................................ 219
Wattage ..................................................763
Heaters Seat heaters ........................................... 551
Side mirror................................................ 411
Heated steering ................................. 549
Height control Rear height control air
suspension .......................................... 316
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827
Alphabetical index
GX460_U.S.A. (OM60J00U)
Personal lightsPersonal lights.......................................519
Switch ........................................................ 521
Wattage ................................................. 763
Power steering Fluid ............................................................ 621
Power outlet ................................ 542, 544
Power windows........................................ 101
Pre-Collision System.......................... 343
Radar cruise control ........................... 250
Radiator......................................................618
Radio ........................................................... 415
RDS (Radio Date System).................. 417
Rear height control air suspension ....................................... 316
Rear seat Adjustment ...............................................67
Folding down the second seatbacks ..................................... 69, 70
Folding down the third seats ........... 72
Rear side marker lights
Replacing light bulbs ....................... 669
Wattage ................................................. 763
Rear step bumper ....................................54
Rear turn signal lights Replacing light bulbs ....................... 669
Wattage ................................................. 763
Rear view mirror Compass ............................................... 575
Rear view monitor system ..................281
Rear window defogger
*.......................411
Rear window wiper and washer .....242 Replacing
Electronic key battery ......................644
Fuses......................................................... 647
Light bulbs .............................................662
Tires ............................................................ 721
Reporting safety defects for
U.S. owners ......................................... 804
Scuff lighting ............................................ 519
Seat belts Adjusting the seat belt ........................86
Automatic Locking Retractor......... 87
Child restraint system installation.............................................. 151
Cleaning and maintaining the seat belts .................................... 594
Emergency Locking Retractor ................................................ 87
How to wear your seat belt ............ 85
How your child should wear the seat belt ......................................... 88
Pre-collision seat belts ....................... 87
Pregnant women, proper seat belt use ........................ 88
Reminder light .....................................692
Seat belt extenders ..............................89
Seat belt pretensioners ......................90
Seat heaters ............................................. 551
Seat position memory ............................ 78
Seat ventilator ......................................... 551
Seating capacity .................................... 364
R
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*: For vehicles with a navigation system, refer to the “Navigation System Owner’s Manual”.