2008 Lexus GS450h fuse box

420
4-3. Do-it-yourself maintenance
GS_HV_U
June 19, 2008 1:15 pm
Engine compartment
■12 volt battery
→P. 4 3 0
Engine oil level dipstick
(→P. 4 2 2 )
Engine oil filler cap (→P. 423)
Brake fluid reservoir (→P. 4 2 9 )
Fuse box ( →P. 4 5 6 )Washer fluid tank
(→P. 4 3 4 )
Gasoline engine/power
control unit coolant
reservoir ( →P. 4 2 7 )
Electric cooling fans
Condenser ( →P. 4 2 8 )
Radiator ( →P. 4 2 8 )
GS450h_HV_U.book Page 420 Thursday, June 19, 2008 1:44 PM

456
4-3. Do-it-yourself maintenance
GS_HV_U
June 19, 2008 1:15 pm
Checking and replacing fuses
If any of the electrical components do not operate, a fuse may have blown.
If this happens, check and replace the fuses as necessary.
Turn the “POWER” switch to OFF.
Remove the engine compartment cover if necessary.
→P. 4 2 1
Open the fuse box cover.
■ Engine compartment
Remove the clips.
■ Front controller in the engine compartment fuse box
Lift the lid off while pushing the
tabs on either side.STEP1
STEP2
STEP3
GS450h_HV_U.book Page 456 Thursday, June 19, 2008 1:44 PM

458
4-3. Do-it-yourself maintenance
GS_HV_U
June 19, 2008 1:15 pm
■Luggage compartment (vehicles with active stabilizer suspension
system)
Remove the lid.
After a system failure, see “Fuse layout and amperage ratings”
(→ P. 460) for details about which fuse to check.
Remove the fuse with the pull-
out tool.
Check if the fuse has blown.
Ty p e A
Normal fuse
Blown fuse
Replace it with one of an appro-
priate amperage rating. The
amperage rating can be found
on the fuse box lid.
STEP4
STEP5
STEP6
GS450h_HV_U.book Page 458 Thursday, June 19, 2008 1:44 PM

459
4-3. Do-it-yourself maintenance
4
Maintenance and care
GS_HV_U
June 19, 2008 1:15 pm
Ty p e BNormal fuse
Blown fuse
Replace it with one of an appro-
priate amperage rating. The
amperage rating can be found
on the fuse box lid.
Ty p e CNormal fuse
Blown fuse
Contact your Lexus dealer.
Ty p e DNormal fuse
Blown fuse
Contact your Lexus dealer.
GS450h_HV_U.book Page 459 Thursday, June 19, 2008 1:44 PM

465
4-3. Do-it-yourself maintenance
4
Maintenance and care
GS_HV_U
June 19, 2008 1:15 pm
FuseAmpereCircuit
10ECU-IG LH10
VGRS, EPS, electronically con-
trolled brake system, yaw rate & G
sensor, dynamic radar cruise control
system, rear view monitor system,
moon roof
11PA N E L7. 5
Steering switches, distance control
switch, audio system, glove box light,
switch illumination, cigarette lighter,
shift lever light, touch screen, rear
personal lights
12S/ROOF25Moon roof
13FUEL OPEN10Fuel lid opener
14LH-B10Theft deterrent system
15TRK OPN10Tr u n k o p e n e r
16TV7. 5Touch screen, rear view monitor sys-
tem
17A/C7. 5Air conditioning system
18FR P/SEAT LH30Po w e r s e a t
GS450h_HV_U.book Page 465 Thursday, June 19, 2008 1:44 PM

470
4-3. Do-it-yourself maintenance
GS_HV_U
June 19, 2008 1:15 pm
CAUTION
■To prevent system breakdowns and vehicle fire
Observe the following precautions.
Failing 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.
GS450h_HV_U.book Page 470 Thursday, June 19, 2008 1:44 PM

475
4-3. Do-it-yourself maintenance
4
Maintenance and care
GS_HV_U
June 19, 2008 1:15 pm
Replacing light bulbs■ Headlight high beam
Left-hand side: Remove the fuse
box cover.
Unplug the connector while
depressing the lock release.
Turn the bulb base counterclock-
wise to remove it.
STEP1
STEP2
STEP3
GS450h_HV_U.book Page 475 Thursday, June 19, 2008 1:44 PM

587
Alphabetical index
GS_HV_U
June 19, 2008 1:15 pm
Front passenger occupant classification system .......................... 107
Front passenger’s seat belt reminder light ..................................... 493
Front seats Adjustment .............................................. 58
Driver’s seat position memory ...... 60
Front turn signal lights
Wattage ................................................. 552
Fuel
Capacity................................................. 546
Fuel gauge ..............................................148
Gas station information ................. 596
Information............................................553
Refueling ................................................... 83
Messages ..................................................511
Fuel door..................................................... 83
Fuel filler door........................................... 83
Fuses.......................................................... 456
Garage door opener........................... 377
Gas station information ..................... 596
Gauges.......................................................148
Glove box ............................................... 356
Hands-free system (for cellular phone).......................... 306
Head restraints..........................................64
Headlight aim .......................................... 471
Headlight cleaner .................................. 165 Headlights
Adaptive front lighting system...... 159
Discharge headlights precautions........................................ 479
Replacing light bulbs ........................ 474
Switch........................................................ 158
Wattage..................................................552
Heaters
Seat heaters ......................................... 369
Side mirror.............................................240
Hill-start assist control ....................... 200
Hood ............................................................417
Hooks Cargo ...................................................... 375
Shopping bag ......................................375
Hybrid system ........................................... 22
Emergency shut off system.............. 27
Energy monitor/consumption screen...................................................... 27
High voltage components ............... 26
Power meter.......................................... 148
Power (ignition) switch .................... 138
Identification Engine..................................................... 545
Electric motor ..................................... 545
Vehicle ................................................... 545
Ignition switch
Power switch......................................... 138
Illuminated entry system .................... 352
I/M test....................................................... 413
Immobilizer system ................................ 88
Indicator lights......................................... 152
Initialization
Items to initialize .................................575
Inside rear view mirror .......................... 74
G
H
I
GS450h_HV_U.book Page 587 Thursday, June 19, 2008 1:44 PM