2008 Lexus GS450h maintenance

TABLE OF CONTENTS
1
GS_HV_U
December 12, 2007 3:30 pm
1Before drivingAdjusting and operating features such as door locks, mir-
rors, and steering column
2When drivingDriving, stopping and safe-driving information
3Interior featuresAir conditioning and audio systems, as well as other interior
features for a comfortable driving experience
4Maintenance
and careCleaning and protecting your vehicle, performing do-it-your-
self maintenance, and maintenance information
5When trouble
arisesWhat to do if the vehicle needs to be towed, gets a flat tire,
or is involved in an accident
6Vehicle 
specificationsDetailed vehicle information
7For ownersReporting safety defects for US owners and seat belt in-
structions for Canadian owners
IndexAlphabetical listing of inform ation contained in this manual

TABLE OF CONTENTSIndex
4
GS_HV_U
December 12, 2007 3:33 pm
3-4. Using the hands-free system 
(for cellular phone)................ 306
Hands-free system 
(for cellular phone) .................. 306
Using the Bluetooth
® phone ..... 311
Setting the hands-free 
system ............................................ 326
3-5. Using the interior lights .......... 352 Interior lights list............................ 352
3-6. Using the storage features .... 355 List of storage fe atures.............. 355
3-7. Other interior features........... 362 Sun visors......................................... 362
Vanity mirror .................................. 363
Clock ................................................. 364
Outside temperature 
display ........................................... 365
Ashtrays ........................................... 366
Cigarette lighter ........................... 367
Power outlet .................................. 368
Seat heaters/vent ilators ............ 369
Armrest ............................................. 371
Rear sunshade ............................... 372
Floor mats........................................ 374
Trunk features................................ 375
Garage door opener .................. 377
Compass......................................... 383
Lexus Link System ....................... 387 4-1. Maintenance and care............ 402
Cleaning and protecting 
the vehicle exterior................... 402
Cleaning and protecting 
the vehicle interior ................... 405
4-2. Maintenance............................. 408 Maintenance requir ements .... 408
General maintena nce ................. 410
Emission inspection and 
maintenance (I/M) 
programs ....................................... 413
4-3. Do-it-yourself 
maintenance............................. 414
Do-it-yourself service 
precautions ................................... 414
Hood................................................... 417
Positioning a floor jack................ 418
Engine compartment.................. 420
Tires ................................................... 435
Tire inflation pressure................. 445
Wheels.............................................. 449
Air conditioning filter................... 451
Electronic key battery ................ 454
Checking and replacing 
fuses ................................................ 456
Headlight aim.................................. 471
Light bulbs ....................................... 474
4Maintenance and care

1
2
3
4
5
6
7
5
GS_HV_U
December 12, 2007 3:33 pm
5-1. Essential information .............. 482If your vehicle needs 
to be towed .................................. 482
If you think something is 
wrong ............................................ 488
Event data recorder ................... 489
5-2. Steps to take in an 
emergency ................................ 491
If a warning light turns on or a 
warning buzzer sounds... ........ 491
If a warning message is 
displayed...................................... 500
If you have a flat tire (Vehicles 
with standard tires) .................... 517
If you have a flat tire (Vehicles 
with run-flat tires) ...................... 527
If the hybrid system will 
not start......................................... 528
If the shift lever cannot be 
shifted from “P” .......................... 529
If you lose your keys ................... 530
If the electronic key does not 
operate properly ........................ 531
If the 12 volt battery is 
discharged ................................... 534
If your vehicle overheats .......... 538
If the vehicle becomes 
stuck................................................. 541 6-1. Specifications............................ 544
Maintenance data 
(fuel, oil level, etc.)..................... 544
Fuel information ........................... 553
Tire information ............................ 556
6-2. Customization .......................... 569 Customizable features .............. 569
6-3. Initialization ............................... 575 Items to initialize ........................... 575
Reporting safety defects for 
U.S. owners.................................. 578
Seat belt instructions for 
Canadian owners 
(in French) .................................... 579
Abbreviation list ....................... 582
Alphabetical index................... 584
What to do if............................... 594
5When trouble arises6Vehicle specifications
7For owners
Index

25
1-1. Hybrid system
1
Before driving
GS_HV_U
July 3, 2008 12:32 pm
■Sounds and vibrations specific to a hybrid vehicle
There may be no engine sounds or vibration even though the vehicle is able to
move. Always put the shift lever in “P” when parked.
The following sounds or vibrations may occur when the hybrid system is operating,
and are not a malfunction.
●Motor sounds may be heard fr om the engine compartment.
●Sounds may be heard from the hybrid ba ttery (traction battery) behind the rear
seat when the hybrid system starts or stops.
●Sounds from the hybrid system may be heard when the trunk lid is open.
●Sounds may be heard from the transmissi on when the hybrid system starts or
stops.
●Engine sounds may be heard when accelerating sharply.
●Sounds may be heard from the regenerative brake when you press the brake
pedal.
●Vibration may be felt when the gasoline engine starts or stops.
●You may hear cooling fan sounds coming from the air intake vents behind the
rear seat.
■Maintenance, repair, recycling, and disposal
Contact your Lexus dealer regarding main tenance, repair, recycling and disposal.
Do not dispose of the vehicle yourself.

88
GS_HV_U
December 12, 2007 3:30 pm
1-7. Theft deterrent system
Immobilizer system
■System maintenance
The vehicle has a maintenance-free type of immobilizer system.
■Conditions that may cause the system to malfunction
●If the grip portion of the key is in contact with a metallic object.
●If the key is in close proximity to or touching a key to the security system (key
with a built-in transponder chip) of another vehicle.
■Certifications for the immobilizer system For vehicles sold in the U.S.A.
This device complies with Part 15 of the FCC Rules. Operation is subject to the fol-
lowing two conditions: (1) this device may not cause harmful interference, and (2)
this device must accept any interference received, including interference that may
cause undesired operation.
The vehicle’s keys have built-in transponder chips that prevent the hybrid
system from starting if the key has not been previously registered in the
vehicle’s on-board computer. 
Never leave the keys inside the vehicle when you leave the vehicle.
The indicator light flashes after
the “POWER” switch has been
turned OFF to indicate that the
system is operating.
FCC ID: NI4TMIMB-1

225
3-1. Using the touch screen
3
Interior features
GS_HV_U
December 12, 2007 3:50 pm
SwitchesPa g e
“CLIMATE”P. 2 3 2
“A U D I O ”P. 2 4 1
“INFO” (Displaying the “Informa-
tion” screen)P. 2 2 4
“DISP” (Adjusting the display)P. 2 2 8
Trip Information (Displaying the
“Energy Monitor/Consumption”
screen)
P. 2 7
MaintenanceNavigation System Owner’s Manual
Te l e p h o n eP. 3 1 1
CalendarNavigation System Owner’s Manual
“LEXUS Park Assist”P. 1 8 9
LanguageP. 2 2 7
Screen SettingP. 2 3 0
Beep OffP. 2 2 7
Adjust ClockP. 3 6 4 /
Navigation System Owner’s Manual

230
3-1. Using the touch screen
GS_HV_U
December 12, 2007 3:50 pm
Screen settingsPress .
Touch on the “Information” screen.
The following screen se ttings can be changed.
Automatic transition
20 seconds after air conditioning
or audio system use, the system will
return the display to the previous
screen.
Switch color
You can select the switch color.
Delete personal data
The following personal data is
deleted:
• User selection settings
•Phone book data
• Dialed numbers and received calls
•Speed dial
• Bluetooth
® phone data
•Security code
• Maintenance conditions*
• Maintenance information off setting*
•Memory points*
•Areas to avoid*
• Previous points*
• Route trace*
*: If the navigation system is equipped
STEP1
STEP2

Maintenance and care4
401
GS_HV_U
December 12, 2007 3:30 pm
4-1. Maintenance and 
care ............................... 402
Cleaning and protecting 
the vehicle exterior............ 402
Cleaning and protecting 
the vehicle interior ............. 405 4-2. Maintenance .................. 408
Maintenance 
requirements........................ 408
General maintenance ........... 410
Emission inspection and 
maintenance (I/M) 
programs ................................ 413
4-3. Do-it-yourself 
maintenance ................. 414
Do-it-yourself service 
precautions ............................ 414
Hood ............................................ 417
Positioning a floor jack .......... 418
Engine compartment ........... 420
Tires............................................ 435
Tire inflation pressure........... 445
Wheels ...................................... 449
Air conditioning filter ............ 451
Electronic key battery.......... 454
Checking and replacing 
fuses ........................................ 456
Headlight aim ........................... 471
Light bulbs ................................. 474