2010 Lexus HS250h hood open

14
Pictorial indexInstrument panel
Headlight switch Turn signal lever Fog light switch P. 183
P. 159
P. 194
Tilt and telescopic steering
control switch
 P. 79
Pre-collision brake off switch  P. 233
Parking brake pedal P. 160
EV drive mode switch
Eco mode switch
Power mode switch P. 150
P. 155
P. 155
Hood lock release lever P. 419
Tilt and telescopic steering control lever  P. 79
Glove box P. 364
Trunk opener 
main switch
P. 60
Power (ignition) switch P. 145
Windshield wipers and
washer switch
P. 195
Gauges and meters 
Multi-information display P. 162
P. 169
Audio system *2P. 262

98
1-7. Theft deterrent system
Alarm
The system sounds the alarm and flashes the lights when forced entry is
detected.
■Triggering of the alarm
The alarm is triggered in the following situations:
●A lock
ed door or trunk is unlocked or opened in any way other
than using the entry function, wi reless remote control or mechan -
ical key with the alarm being set. (The doors will lock again au
to-
matically.)
● The hood is opened with the alarm being set.
■ Setting the alarm sy
stem
Without navigation system
Close the doors, trunk and hood,
and lock all the doors using the
entry function or wireless remote
control. The system will be set
automatically after 30 seconds.
The indicator light changes from
being on to flashing
when the
system is set.
With navigation system
Close the doors, trunk and hood,
and lock all the doors using the
entry function or wireless remote
control. The system will be set
automatically after 30 seconds.
The indicator light changes from
being on to flashing
when the
system is set.

99
1-7. Theft deterrent system
1
Before driving
■Items to check before locking the vehicle
To prevent unexpected triggering of the alarm and vehicle theft, make sure of the
fo
llowing:
●Nobody is in the vehicle.
●The windows and moon roof are closed before the alarm is set.
●No valuables or other personal items are left in the vehicle.
■Tr i g g e r i n g o f t h e a l a r m
The alarm may be triggered in the
following situations:
(Stopping the alarm deactivates the alarm system.)
■ Deactivating or stopping the alarm
Do one of the following to deactivate or stop the alarms:
●U
nlock the doors or trunk using the entry function, wireless
remote control or mechanical key.
● Star
t the hybrid system. (The alarm will be deactivated or stopped
after a few seconds.)
●A person inside the vehicle opens a door,
the trunk or hood.
●The 12-volt battery is recharged or
replaced when the vehicle is locked.

419
4-3. Do-it-yourself maintenance
4
Maintenance and care
Hood
CAUTION
■Pre-driving check
Check that the hood is fully closed and locked. 
If the hood is not locked properly, it may open while the vehicle is in motion and
cause an accident, which may result in death or serious injury.
Release the lock from the inside of the vehicle to open the hood.
Pull the hood lock release lever.
The hood will pop up slightly.
Pull up the auxiliary catch lever
and lift the hood.

536
5-2. Steps to take in an emergency
If the vehicle 12-volt battery is discharged
The following procedures may be used to start the hybrid system if the vehi-
cle’s 12-volt battery is discharged. 
You can also call your Lexus dealer or a qualified repair shop.
If you have a set of jumper (or booster) cables and a second vehicle
with a 12-volt battery, you can jump start your vehicle by following the
steps below.
Open the hood and fuse box
co
ver.
Push the tab in and lift the lid off.
Open the exclusive jump start -
ing terminal cover.
Slightly pull the tab to open the
cover.

544
5-2. Steps to take in an emergency
CAUTION
■To prevent an accident or injury when inspecting under the hood of your vehicle
●If steam is seen coming from under the hood, do not open the hood until the
steam has subsided. The engine compartm ent may be very hot, causing serious
injuries such as burns.
●Check that the indicator on the “POWER ” switch and the READY indicator are
off.
●For vehicles with a hybrid system, there are times when the gasoline engine auto-
matically starts to run or the cooling fans suddenly start to operate. Do not touch
or approach the rotating parts of the belt or fans. Doing so may lead to fingers,
clothes or tools getting caught, resulting in injury.
●Do not loosen the coolant reservoir cap while the hybrid system and radiator are
hot. 
Serious injuries, such as burns, may resu lt from hot coolant and steam released
under pressure.
NOTICE
■When adding engine/power control unit coolant
Wait until the hybrid system has cooled down before adding engine/power control
unit coolant. 
When adding coolant, do so slowly. Adding cool coolant to a hot hybrid system too
quickly can cause damage to the hybrid system.

598
Alphabetical index
Keyless entry.............................................. 54
KeysElectronic key ......................................... 39
Engine switch......................................... 147
If the electronic key does not 
operate properly ............................ 533
If you lose your keys......................... 532
Key number ............................................. 39
Keyless entry ........................................... 54
Keys ............................................................. 39
Mechanical key...................................... 40
Wireless remote control key .......... 54
Lane keeping assist ................................217
License plate lights Replacing light bulbs........................ 470
Wattage..................................................556
Light bulbs Replacing ............................................... 469
Wattage..................................................556
Light Door courtesy lights.........................360
Fog light switch .....................................194
Footwell lights......................................360
Headlight switch ................................. 183
Interior light list ....................................360
Interior light switch ..............................361
Outer foot lights .................................360
Personal light switch ..........................361
Remote touch light............................360
Replacing light bulbs........................ 469
Scuff lighting .........................................360
Turn signal lever ................................... 162
Turn signal light bulbs...................... 469
Turn signal light switch...................... 162 Vanity lights........................................... 372
Wattage ................................................. 556
LKA .............................................................. 217
Load capacity......................................... 243
Maintenance Do-it-yourself maintenance........... 416
General maintenance......................... 411
Maintenance data ............................. 548
Maintenance requirements.......... 409
Meter Instrument panel light control ....... 163
Meters ....................................................... 162
Micro dust and pollen filter .............. 256
Mirrors Inside rear view mirror ........................ 81
Side mirror heater............................. 260
Side mirrors............................................. 83
Vanity mirrors ...................................... 372
Moon roof................................................... 89
MP3 disc ................................................... 281
Multi-information display ....................169
Noise from under vehicle ......................18
Odometer .................................................162
Oil Engine oil................................................424
Opener Fuel filler door ......................................... 92
Hood ......................................................... 419
Trunk........................................................... 60K
L
M
N
O

603
Alphabetical index
Warning messagesCruise control ..................................... 502
Dynamic radar cruise 
control .................................... 502, 505
Electric power steering  system.................................................. 502
Engine oil maintenance..................505
Engine oil pressure............................ 501
EV drive mode ...................................505
Headlight ............................................... 502
Hood .......................................................505
Hybrid system ...................................... 501
Intuitive parking assist ........ 502, 505
Key .............................................................. 513
Lane-Keeping Assist .......................505
Moon roof .............................................505
Open door ...........................................505
Parking brake ......................................505
Pre-collision system ............ 502, 505
Smart access system with 
push start.............................................. 513
Tire pressure warning 
system..................................................505
Trunk ........................................................505
Washer fluid.........................................505 Washer
Checking ............................................... 432
Preparing and checking before winter .................................... 244
Switch........................................................ 195
Washing and waxing ...........................402
Weight Cargo capacity ................................... 243
Load limits ............................................. 243
Weight.................................................... 548
Wheels ......................................................448
Window glasses .......................................86
Window lock switch ...............................86
Windows Power windows .....................................86
Rear window defogger.................. 260
Washer .................................................... 195
Windshield wiper de-icer................... 261
Windshield wipers................................. 195
Wireless remote control key Locking/Unlocking ............................. 54
Replacing the battery.......................453
Wireless remote control key .......... 54
WMA disc ................................................ 281