2010 Lexus HS250h Pressure

230
2-4. Using other driving systems
HS250h_U_75033U(Canada)
Hill-start assist control
■Hill-start assist control can be operated when
●The shift position is in a position other than P.
●The parking brake is not applied.
●The accelerator pedal is not depressed.
■Hill-start assist control
●While hill-start assist control is operating, the brakes remain automatically
applied after the driver releases the brake pedal. The stop lights and the high
mounted stoplight turn on.
●Hill-start assist control operates for about 2 seconds after the brake pedal is
released.
●If the slip indicator does not flash and the buzzer does not sound when the brake
pedal is further depressed, slightly reduce the pressure on the brake pedal (do
not allow the vehicle to roll backward) and then firmly depress it again. If the sys-
tem still does not operate, check if the operating conditions explained above
have been met.
Hill-start assist control helps to prevent the vehicle from rolling backwards
when starting on an incline or slippery slope.
To engage hill-start assist con-
trol, further depress the brake
pedal when the vehicle is
stopped completely.
A buzzer will sound once to
indicate the system is activated.
The slip indicator will also start
flashing.

246
2-5. Driving information
HS250h_U_75033U(Canada)
CAUTION
■Driving with snow tires
Observe the following precautions to reduce the risk of accidents.
Failure to do so may result in a loss of vehicle control and cause death or serious
injury.
●Use tires of the size specified.
●Maintain the recommended level of air pressure.
●Do not drive in excess of 75 mph (120 km/h), regardless of the type of snow tires
being used.
●Use snow tires on all, not just some wheels.
■Driving with tire chains
Observe the following precautions to reduce the risk of accidents.
Failure to do so may result in the vehicle being unable to be driven safely, and may
cause death or serious injury.
●Do not drive in excess of the speed limit specified for the tire chains being used,
or 30 mph (50 km/h), whichever is lower.
●Avoid driving on bumpy road surfaces or over potholes.
●Avoid sudden turns and braking, as use of chains may adversely affect vehicle
handling.
●Slow down sufficiently before entering a curve to ensure that vehicle control is
maintained.
NOTICE
■Repairing or replacing snow tires
Request repairs or replacement of snow tires from Lexus dealers or legitimate tire
retailers.
This is because the removal and attachment of snow tires affects the operation of
the tire pressure warning valves and transmitters.
■Fitting tire chains
The tire pressure warning valves and transmitters may not function correctly when
tire chains are fitted.

295
3-2. Using the audio system
3
Interior features
HS250h_U_75033U(Canada)
NOTICE
■To prevent damage to iPod
●Do not leave iPod in the vehicle. The temperature inside the vehicle may become
high, resulting in damage to the player.
●Do not push down on or apply unnecessary pressure to the iPod while it is con-
nected as this may damage the iPod or its terminal.
●Do not insert foreign objects into the port as this may damage the iPod or its ter-
minal.

303
3-2. Using the audio system
3
Interior features
HS250h_U_75033U(Canada)
CAUTION
■Caution while driving
Do not connect USB or operate the controls.
NOTICE
■To prevent damage to USB memory
●Do not leave USB memory in the vehicle. The temperature inside the vehicle may
become high, resulting in damage to the player.
●Do not push down on or apply unnecessary pressure to the USB memory while it
is connected as this may damage the USB memory or its terminal.
●Do not insert foreign objects into the port as this may damage the USB memory
or its terminal.

Maintenance and care4
401
HS250h_U_75033U(Canada)
4-1. Maintenance and careCleaning and protecting the vehicle exterior............ 402
Cleaning and protecting the vehicle interior .............. 406
4-2. Maintenance Maintenance requirements ........................ 409
General maintenance ............ 411
Emission inspection and maintenance (I/M)
programs................................. 415 4-3. Do-it-yourself maintenance
Do-it-yourself service precautions ............................ 416
Hood ........................................... 419
Positioning a floor jack ......... 420
Engine compartment ........... 422
12-volt battery ........................ 433
Tires............................................ 437
Tire inflation pressure........... 445
Wheels ...................................... 448
Air conditioning filter ........... 450
Electronic key battery.......... 453
Checking and replacing fuses ........................................ 455
Headlight aim (LED headlights) .................. 467
Light bulbs................................ 469

402
HS250h_U_75033U(Canada)
4-1. Maintenance and care
Cleaning and protecting the vehicle exterior
■Automatic car washes
●Fold the mirrors before washing the vehicle. Start washing from the front of the
vehicle. Make sure to extend the mirrors before driving.
●Roof antenna, rear spoiler (if equipped) may not be washable in some automatic
car washes. There may also be an increased risk of damage to vehicle.
●Brushes used in automatic car washes may scratch the vehicle surface and
harm your vehicle’s paint.
■High pressure car washes
●Do not allow the nozzles of the car wash to come within close proximity of the
windows.
●Before using the car wash, check that the fuel filler door on your vehicle is
closed properly.
Perform the following to protect the vehicle and maintain it in prime condi-
tion:
●Working from top to bottom, liberally apply water to the vehicle
body, wheel wells and underside of the vehicle to remove any dirt
and dust.
● Wash the vehicle body using a sponge or soft cloth, such as a
chamois.
● For hard-to-remove marks, use car wash soap and rinse thor-
oughly with water.
● Wipe away any water.
● Wax the vehicle when the waterproof coating deteriorates.
If water does not bead on a clean surface, apply wax when the vehicle
body is cool.

414
4-2. Maintenance
HS250h_U_75033U(Canada)
Vehicle exterior
ItemsCheck points
Doors/trunk• Do the doors and trunk operate smoothly?
Engine hood• Does the engine hood lock system work properly?
Fluid leaks
• There should not be any signs of fluid leakage after the vehicle has
been parked.
Ti r e s
• Is the tire inflation pressure cor-rect?
• The tires should not be damaged or excessively worn.
• Have the tires been rotated
according to the maintenance
schedule?
• The wheel nuts should not be loose.
CAUTION
■If the hybrid system is operating
Turn the hybrid system off and ensure that there is adequate ventilation before per-
forming maintenance checks.

417
4-3. Do-it-yourself maintenance
4
Maintenance and care
HS250h_U_75033U(Canada)
ItemsParts and tools
Engine oil level (→P. 4 2 4 )
• “Toyota Genuine Motor Oil” or
equivalent
•Rag or paper towel
• Funnel (used only for adding
engine oil)
Fuses (→ P. 4 5 5 )• Fuse with same amperage rating as
original
Headlight aim ( →P. 4 6 7 )• Phillips-head screwdriver
Light bulbs (→ P. 4 6 9 )
• Bulb with same number and watt-
age rating as original
• Phillips-head screwdriver
•Flathead screwdriver
•Wrench
Radiator and condenser (→P. 4 3 0 )
Tire inflation pressure ( →P. 4 4 5 )• Tire pressure gauge
• Compressed air source
Wa s h e r f l u i d ( →P. 4 3 2 )
• Water or washer fluid containing
antifreeze (for winter use)
• Funnel (used only for adding water
or washer fluid)