2008 Lexus GS450h suspension

460
4-3. Do-it-yourself maintenance
GS_HV_U
December 27, 2007 1:38 pm
Fuse layout and amperage ratings■ Engine compartment
FuseAmpereCircuit
1FR CTRL-B25H-LP HI, HORN
2RELIEF VLV10Fuel system
3ETCS10
Multiport fuel injection system/
sequential multiport fuel injection
system
4H-LP CLN30Headlight cleaner
5STB-AM30Active stabilizer suspension system
6DEICER25
7FR CTRL-AM30FR TAIL, FR FOG, WASH

469
4-3. Do-it-yourself maintenance
4
Maintenance and care
GS_HV_U
December 27, 2007 1:38 pm
■Luggage compartment 
(vehicles with active stabilizer suspension system)
FuseAmpereCircuit
1STB FR50Front stabilizer
2STB RR30Rear stabilizer
3STB DC/DC30DC/DC converter
■After a fuse is replaced
●If the lights do not turn on even afte r the fuse has been replaced, a bulb may
need replacement. ( P. 4 74 )
●If the replaced fuse blows again, have the vehicle inspected by your Lexus
dealer.
■If there is an overload in the circuits
The fuses are designed to blow before the entire wiring harness is damaged.

488
5-1. Essential information
GS_HV_U
December 12, 2007 3:50 pm
If you think something is wrong
If you notice any of the following symptoms, your vehicle probably needs
adjustment or repair. Contact your Lexus dealer as soon as possible.
■ Visible symptoms
●Fluid leaks under the vehicle 
(Water dripping from the air conditioning after use is normal.)
● Flat-looking tires or uneven tire wear
● Engine coolant temper ature gauge needle continually points
higher than normal
■ Audible symptoms
●Changes in exhaust sound
● Excessive tire squeal when cornering
● Strange noises related to the suspension system
● Pinging or other noises related to the hybrid system
■ Operational symptoms
●Engine missing, stumbling or running rough
● Appreciable loss of power
● Vehicle pulls heavily to one side when braking
● Vehicle pulls heavily to one side when driving on a level road
● Loss of brake effectiveness, sp ongy feeling, pedal almost touches
the floor

502
5-2. Steps to take in an emergency
GS_HV_U
December 12, 2007 3:50 pm
Wa r n i n g m e s s a g eDetails
(If equipped)
Intuitive parking assist malfunction.The malfunctioning sensor is shown flashing on the
display.
(If equipped)
Malfunction in the active stabilizer suspension sys-
tem.

(If equipped)Malfunction in the PCS.
(Flashing) 
(If equipped)
Malfunction in the radar cruise control system. Stop the vehicle in a safe place. Turn the “POWER”
switch to OFF and then to ON mode again to reset
the cruise control system.

584
GS_HV_U
December 12, 2007 3:50 pm
Alphabetical index
Alphabetical index
A/C ............................................................ 232
ABS............................................................ 200
ACCESSORY mode .......................... 139
Active stabilizer suspension 
system.................................................... 200
Adaptive variable 
suspension system ............................. 199
Air conditioning system Air conditioning filter .........................451
Automatic air conditioning 
system .................................................. 232
Airbags Airbag operating conditions........... 98
Airbag precautions for 
your child..............................................102
Airbag warning light ........................ 492
Curtain shield airbag 
precautions ........................................ 105
General airbag precautions ..........102
Locations of airbags............................ 95
Modification and disposal of 
airbags .................................................. 106
Proper driving posture ...................... 93
Side airbag precautions ...................102
Side and curtain shield airbags 
operating conditions ....................... 98
SRS airbags ............................................. 95
Alarm ............................................................90
Antenna ....................................................250
Anti-lock brake system ..................... 200
Armrest ...................................................... 371
Ashtrays ....................................................366 Audio system
Antenna.................................................. 250
AUX adapter ...................................... 302
Cassette player .................................. 253
CD player/changer ..........................257
DVD information .............................. 285
DVD player/changer ..................... 266
DVD video/audio............................. 269
MP3/WMA disc................................262
Optimal use .......................................... 297
Radio ........................................................244
Steering switches .............................. 303
Video CD ............................................... 281
Automatic headlight leveling 
system ..................................................... 160
Automatic light control system........ 158
AUX adapter ......................................... 302
Back-up lights Wattage ................................................. 552
Battery 12 volt battery ...................................... 430
Checking............................................... 430
Hybrid battery 
(Traction battery)............................... 26
If the 12 volt battery is 
discharged ........................................ 534
Preparing and checking 
before winter...................................... 215
Bluetooth
®................................................. 311
Brake Fluid ...........................................................429
Parking brake........................................ 147
Brake assist .............................................200
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