Page 7 of 599

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
GS450h_HV_U.book Page 5 Thursday, June 19, 2008 1:44 PM
Page 139 of 599

137
2-1. Driving procedures
2
When driving
GS_HV_U
June 19, 2008 1:15 pm
NOTICE
■If you get a flat tire while driving
A flat or damaged tire may cause the following situations. Hold the steering wheel
firmly and gradually press the brake pedal to slow down the vehicle.
●It may be difficult to control your vehicle.
●The vehicle will make abnormal sounds.
●The vehicle will behave abnormally.
Replace a flat tire with a new one. ( →P. 5 2 0 )
■When encountering flooded roads
Do not drive on a road that has flooded after heavy rain etc. Doing so may cause the
following serious damage to the vehicle.
●Engine stalling
●Short in electrical components
●Engine damage caused by water immersion
In the event that you drive on a flooded road and the vehicle is flooded, be sure to
have your Lexus dealer check the following.
●Brake function
●Changes in quantity and quality of oil and fluid used for the engine, transmission,
differentials, etc.
●Lubricant condition for the propeller shaft, bearings and suspension joints (where
possible) and the function of all joints, bearings, etc.
GS450h_HV_U.book Page 137 Thursday, June 19, 2008 1:44 PM
Page 217 of 599

215
2-5. Driving information
2
When driving
GS_HV_U
June 19, 2008 1:15 pm
Winter driving tips
Carry out the necessary preparations and inspections before driving the
vehicle in winter. Always drive the vehicle in a manner appropriate to the
prevailing weather conditions.
■Pre-winter preparations
● Use fluids that are appropriate to the prevailing outside tempera-
tures.
• Engine oil
• Engine/power control unit coolant
• Washer fluid
● Have a service technician inspect the level and specific gravity of
battery electrolyte.
● Have the vehicle fitted with four snow tires or purchase a set of
tire chains for the rear tires.
Ensure that all tires are the same size and brand, and that chains match
the size of the tires.
■Before driving the vehicle
Perform the following according to the driving conditions.
● Do not try to forcibly open a window or move a wiper that is fro-
zen. Pour warm water over the frozen area to melt the ice. Wipe
away the water immediately to prevent it from freezing.
● To ensure proper operation of the climate control system fan,
remove any snow that has accumulated on the air inlet vents in
front of the windshield.
● Remove any ice that has accumulated on the vehicle chassis.
● Periodically check for and remove any excess ice or snow that
may have accumulated in the wheel well or on the brakes.
GS450h_HV_U.book Page 215 Thursday, June 19, 2008 1:44 PM
Page 258 of 599
256
3-3. Using the audio system
GS_HV_U
June 19, 2008 1:15 pm
■Cleaning the cassette player
Cassette player components (heads, capstan, pinch rollers) should be cleaned at
least once a month using a cleaning tape to remove dirt and dust that can easily
build up.
■Using long playing cassette tapes
Avoid using tapes with a length of more than 90 minutes, as the tape used is very
thin and may become tangled in the cassette player.
NOTICE
■Cassette tapes that cannot be used
Do not use a cassette tape if it has been damaged or tangled or if its label is peeling
off. Such tapes may affect playing speed and may also get stuck in the player.
■Cassette player precautions
●Store cassette tapes away from direct sunlight.
●Do not insert anything other than cassette tapes into the cassette player.
●Do not apply oil to the cassette player.
GS450h_HV_U.book Page 256 Thursday, June 19, 2008 1:44 PM
Page 298 of 599
296
3-3. Using the audio system
GS_HV_U
June 19, 2008 1:15 pm
NOTICE
■Player precautions
Failure to follow the precautions below may result in damage to the discs or the
player itself.
●Do not insert anything other than discs into the disc slot.
●Do not apply oil to the player.
●Store discs away from direct sunlight.
●Never try to disassemble any part of the player.
●Do not insert more than one disc at a time.
GS450h_HV_U.book Page 296 Thursday, June 19, 2008 1:44 PM
Page 405 of 599

403
4-1. Maintenance and care
4
Maintenance and care
GS_HV_U
May 13, 2008 2:19 pm
■Aluminum wheels
Remove any dirt immediately by using a neutral detergent. Do not use hard brushes
or abrasive cleaners. Do not use strong or harsh chemical cleaners. Use the same
mild detergent and wax as used on the paint.
■Bumpers and side moldings
Do not scrub with abrasive cleaners.
■To prevent paint deterioration and corrosion on the body
●Wash the vehicle immediately in the following cases:
• After driving near the sea coast
• After driving on salted roads
• If you see coal tar or tree sap on the paint surface
• If you see dead insects, insect droppings or bird droppings on the paint
• After driving in an area contaminated with soot, oily smoke, mine dust, ironpowder or chemical substances
• If the vehicle becomes heavily soiled in dust or mud
• If liquids such as benzene and gasoline are spilled on the paint surface
●If the paint is chipped or scratched, have it repaired immediately.
■Touch-up paint (if equipped)
Apply the touch-up paint to cover small scratches or chips, and to prevent rust.
CAUTION
■Caution about the exhaust pipe
Exhaust gasses cause the exhaust pipe to become quite hot.
When washing the vehicle, be careful not to touch the pipe until it has cooled suffi-
ciently, as touching a hot exhaust pipe can cause burns.
GS450h_HV_U.book Page 403 Thursday, June 19, 2008 1:44 PM
Page 411 of 599

409
4-2. Maintenance
4
Maintenance and care
GS_HV_U
June 19, 2008 1:15 pm
■Allow inspection and repairs to be performed by a Lexus dealer
●Lexus technicians are well-trained specialists and are kept up to date with the
latest service information. They are well informed about the operations of all
systems on your vehicle.
●Keep a copy of the repair order. It proves that the maintenance that has been
performed is under warranty coverage. If any problem should arise while your
vehicle is under warranty, your Lexus dealer will promptly take care of it.
CAUTION
■Hazardous materials
●Engine exhaust, some of its constituents, and a wide variety of automobile com-
ponents contain or emit chemicals known to the State of California to cause can-
cer and birth defects and other reproductive harm. Work in a well ventilated area.
●Oils, fuels and fluids contained in vehicles as well as waste produced by compo-
nent wear contain or emit chemicals known to the State of California to cause
cancer and birth defects or other reproductive harm. Avoid exposure and wash
any affected area immediately.
●12 volt battery posts, terminals and related accessories contain lead and lead
compounds which are known to cause brain damage. Wash your hands after
handling. (→P. 4 3 0 )
●Used engine oil contains chemicals that have been shown to cause cancer in lab-
oratory animals. Avoid prolonged and repeated contact. Always protect your
skin by washing thoroughly with soap and water.
GS450h_HV_U.book Page 409 Thursday, June 19, 2008 1:44 PM
Page 412 of 599
410
4-2. Maintenance
GS_HV_U
June 19, 2008 1:15 pm
General maintenance
Engine compartment
Luggage compartment
ItemsCheck points
Brake fluid• At the correct level? (→P. 4 2 9 )
Engine/power control unit coolant• At the correct level? (→P. 4 2 7 )
Engine oil• At the correct level? (→ P. 422)
Exhaust system• No fumes or strange sounds?
Radiator/condenser/hoses• Not blocked with foreign matter?
(→ P. 4 2 8 )
Wa s h e r f l u i d• At the correct level? ( →P. 4 3 4 )
ItemsCheck points
12 volt battery•Maintenance-free ( →P. 4 3 0 )
Listed below are the general maintenance items that should be performed
at the intervals specified in the “Warranty and Services Guide/Owner’s
Manual Supplement”. It is recommended that any problem you notice
should be brought to the attention of your Lexus dealer or qualified service
shop for advice.
GS450h_HV_U.book Page 410 Thursday, June 19, 2008 1:44 PM