2010 Lexus HS250h ECO mode

5
When trouble arises
531
5-2. Steps to take in an emergency
HS250h_U_75033U(Canada)
Emergency start functionWhen the hybrid system does not start, the following steps can be used as
an interim measure to start the hybrid system if the “POWER” switch is
functioning normally: Set the parking brake.
Turn the “POWER” switch to ACCESSORY mode.
Press and hold the “POWER” switch for about 15 seconds while
depressing the brake pedal firmly.
Even if the hybrid system can be star ted using the above steps, the system
may be malfunctioning. Have the vehicle inspected by your Lexus dealer.
■ The interior lights and headlights do not turn on, or the horn does
not sound.
One of the following may be the cause of the problem:
● One or both of the 12-volt battery terminals may be discon-
nected.
● The 12-volt battery may be discharged. ( →P. 5 3 6 )
Contact your Lexus dealer if the problem cannot be repaired, or if
repair procedures are unknown.

5
When trouble arises
535
5-2. Steps to take in an emergency
HS250h_U_75033U(Canada)To change “POWER” switch modes: Within 10 seconds of the
buzzer sounding, release the brake pedal and press the
“POWER” switch. Modes can be changed each time the switch is
pressed. (
→P. 1 4 6 )
To start the hybrid system: Press the “POWER” switch within 10
seconds of the buzzer sounding, keeping the brake pedal
depressed.
In the event that the hybrid system still cannot be operated, contact your
Lexus dealer.
■Stopping the hybrid system
In the same method as the normal hybrid system stopping procedure, completely
stop the vehicle and then press the “POWER” switch.
■Replacing the key battery
As the above procedure is a temporary measure, it is recommended that the elec-
tronic key battery be replaced immediately when the battery is depleted.
( → P. 4 5 3 )
■When the electronic key does not work properly
Make sure that the smart access system with push-button start has not been deacti-
vated in the customization setting. If it is off, turn the function on.
(Customizable features →P. 5 74 )

5
When trouble arises
537
5-2. Steps to take in an emergency
HS250h_U_75033U(Canada)
Connect the jumper cables according to the following procedure:Connect a positive jumper cable clamp to the exclusive jump start-
ing terminal on your vehicle
Connect the clamp on the other end of the positive cable to the pos-
itive (+) battery terminal on the second vehicle
Connect a negative cable clamp to the negative (-) battery terminal
on the second vehicle
Connect the clamp at the other end of the negative cable to a solid,
stationary, unpainted metallic point away from the exclusive jump
starting terminal and any moving parts, as shown in the illustration. Start the engine of the second vehicle. Increase the engine
speed slightly and maintain that level for approximately 5 min-
utes to recharge the 12-volt battery of your vehicle.
Maintain the engine speed of th e second vehicle and start the
hybrid system of your vehicle by turning the “POWER” switch
to ON mode.
Make sure the “READY” indicator comes on. If the indicator
does not come on, contact your Lexus dealer.
Once the hybrid system has started, remove the jumper cables
in the exact reverse order from which they were connected.

571
6-1. Specifications
6
Vehicle specifications
HS250h_U_75033U(Canada)
Intended outboard side-
wall
(a) The sidewall that contains a whitewall, bears white lettering, or bears manufacturer, brand,
and/or model name molding that is higher or
deeper than the same molding on the other side-
wall of the tire, or
(b) The outward facing sidewall of an asymmetrical
tire that has a particular side that must always
face outward when mounted on a vehicle
Light truck (LT) tire
A tire designated by its manufacturer as primarily
intended for use on lightweight trucks or multipur-
pose passenger vehicles
Load ratingThe maximum load that a tire is rated to carry for a
given inflation pressure
Maximum load ratingThe load rating for a tire at the maximum permissible
inflation pressure for that tire
Maximum permissible
inflation pressureThe maximum cold inflation pressure to which a tire
may be inflated
Measuring rimThe rim on which a tire is fitted for physical dimension
requirements
Open spliceAny parting at any junction of tread, sidewall, or
innerliner that extends to cord material
Outer diameterThe overall diameter of an inflated new tire
Overall width
The linear distance between the exteriors of the side-
walls of an inflated tire, including elevations due to
labeling, decorations, or protective bands or ribs
Passenger car tire
A tire intended for use on passenger cars, multipur-
pose passenger vehicles, and trucks, that have a
gross vehicle weight rating (GVWR) of 10,000 lb. or
less.
PlyA layer of rubber-coated parallel cords
Ti r e r e l a t e d t e r mMeaning

581
6-2. Customization
6
Vehicle specifications
HS250h_U_75033U(Canada)
Automatic
air condi-
tioning sys-
tem
(→ P. 2 5 2 )A/C Auto switch
operationAutoManualO——O
Tu r n i n g o n t h e
windshield
defogger acti-
vates the A/C
OnOff———O
Front seats
(
→P. 6 4 )
Driver’s seat
movement when
exiting the vehi-
cle (on some
models)
Pa r t i a l
Off
O—OO
Full
Multi-infor-
mation dis-
play
(
→P. 1 6 9 )
Eco Driving Indi-
cator LightOnOff—OO—
Po w e r w i n -
dows
(
→P. 8 6 )
Mechanical key
linked operationOffOn———O
Wireless remote
control linked
operation
Off
On
(Open only)
———O
Buzzer sounds if
operated using
wireless remote
OnOff———O
ItemFunctionDefault settingCustom-
ized
setting

597
Alphabetical index
HS250h_U_75033U(Canada)
If your vehicle has to be stopped in an emergency............................. 547
If your vehicle needs to be towed ................................................... 483
If your vehicle overheats.................. 541
Emergency flasher
Switch ...................................................... 482
Engine
Accessory mode ................................. 146
Compartment ......................................422
Engine switch ........................................ 145
Hood ......................................................... 419
How to start the engine.................... 145
How to start the hybrid system.................................................... 145
Identification number.......................550
If the engine will not start ...............530
If the hybrid system will not
start........................................................530
Ignition switch........................................ 145
Overheating........................................... 541
Power switch ......................................... 145
Engine compartment cover..............423
Engine coolant Capacity................................................. 554
Checking ............................................... 428
Preparing and checking before winter.....................................244
Engine/power control unit coolant Capacity................................................. 554
Checking ............................................... 428
Preparing and checking
before winter.....................................244
Engine immobilizer system ..................96 Engine oil
Capacity .................................................552
Checking ............................................... 424
Preparing and checking
before winter .................................... 244
Engine oil maintenance data............ 426
Engine switch .......................................... 145
Enhanced VSC...................................... 225
EPS ............................................................. 225
EV drive mode switch.......................... 150
Event data recorder ............................490
Floor mat ................................................. 380
Fluid
Brake ....................................................... 556
Washer ................................................... 432
Fog lights Replacing light bulbs ....................... 469
Switch........................................................ 194
Wattage................................................. 558
Foot light...................................................360
Foot well lighting ...................................360
Front fog lights Replacing light bulbs ....................... 469
Switch........................................................ 194
Wattage................................................. 558
Front passenger occupant classification system ............................ 116
Front passenger's seat belt reminder light......................................495
Front seats Adjustment ............................................... 64
Driver’s seat position memory .......68
F
*: Refer to “Navigation System Owner’s Manual”.

602
Alphabetical index
HS250h_U_75033U(Canada)
Steering wheel position memory.................................................. 68
Stop light Replacing light bulbs........................ 479
Wattage................................................. 558
Storage feature......................................363
Stuck If the vehicle becomes stuck........545
Sun visors .................................................. 371
Sunshade Rear .......................................................... 378
Roof ............................................................. 89
Switch Audio remote control switch *
Driving mode selector switch .................................................... 155
Engine switch.........................................145
Fog light switch.....................................194
Ignition switch........................................145
Light switches ....................................... 183
Mode select switch............................ 155
OPEN CLOSE switch *
Power door lock switch .................... 57
Power switch .........................................145
Power window switch ........................ 86
Talk switch (vehicles without navigation system)............. 314, 333
Talk switch (vehicles with
navigation system) *
Telephone switch (vehicles
without navigation system) ....... 333
Telephone switch (vehicles
with navigation system)*
TILT switch*
Tire pressure warning reset switch ................................................... 439
Window lock switch ........................... 86 Wiper and washer switch............... 195
Tail lights Replacing light bulbs ........................479
Switch ........................................................ 183
Wattage .................................................558
Talk switch (vehicles without navigation system) .................. 314, 333
Talk switch (vehicles with navigation system)*
Telephone switch (vehicles without navigation system)............ 333
Telephone switch (vehicles with navigation system)*
Theft deterrent system Alarm.......................................................... 98
Immobilizer system ..............................96
Theft prevention labels.......................... 101
TILT switch*
Tire inflation pressure ......................... 445
Tire information Glossary ................................................568
Size ........................................................... 565
Tire identification number ............. 564
Uniform Tire Quality Grading ... 566
Tires
Chains..................................................... 245
Checking................................................437
Compact spare tire............................ 521
If you have a flat tire ........................... 521
Inflation pressure ............................... 445
Inflation pressure sensor ............... 438
Information ........................................... 562
Replacing ................................................ 521
Rotating tires.........................................437
Size ........................................................... 557
T