2010 Lexus HS250h hybrid

TABLE OF CONTENTS
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1Before driving
Information on the hybrid system and adjusting and operat-
ing features such as door locks, mirrors, and steering col-
umn
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
6Ve h i c l e
specificationsDetailed vehicle information
7For ownersReporting safety defects for U.S. owners and seat belt in-
structions for Canadian owners
IndexAlphabetical listing of information contained in this manual

TABLE OF CONTENTSIndex
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1-1. Hybrid systemHybrid system................................... 24
Hybrid system precautions ......... 27
Energy monitor/consumption screen................................................ 32
Hybrid vehicle driving tips........... 37
1-2. Key information Keys ...................................................... 39
1-3. Opening, closing and locking the doors
Smart access system with push-button start .......................... 44
Wireless remote control .............. 54
Doors.................................................... 57
Trunk..................................................... 60 1-4. Adjustable components (seats,
mirrors, steering wheel)
Front seats.......................................... 64
Driving position memory (driver’s seat) ................................. 68
Head restraints................................... 71
Seat belts ............................................ 73
Steering wheel.................................. 79
Inside rear view mirror................... 81
Outside rear view mirrors ........... 83
1-5. Opening and closing the windows and moon roof
Power windows................................ 86
Moon roof .......................................... 89
1-6. Refueling Opening the fuel tank cap........... 92
1-7. Theft deterrent system Immobilizer system ........................ 96
Alarm.................................................... 98
Theft prevention labels (for U.S.A.) ..................................... 101
1Before driving
For information regarding the equipment listed below, refer to the “Navigation
System Owner’s Manual”.
• Navigation system
• Air conditioning
• Windshield wiper de-icer
• Rear view monitor system
• Intuitive parking assist • Audio/video system
• Rear window and outside rear view
mirror defogging
•Climate control
• Wide view front monitor system

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2
3
4
5
6
7
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1-8. Safety informationCorrect driving posture ............. 102
SRS airbags ..................................... 104
Front passenger occupant classification system .................... 116
Child restraint systems ................. 121
Installing child restraints ............. 125
2-1. Driving procedures Driving the vehicle ........................ 136
Power (ignition) switch ............... 145
EV drive mode ............................... 150
Hybrid transmission ..................... 153
Turn signal lever ............................ 159
Parking brake ................................. 160
Horn...................................................... 161
2-2. Instrument cluster Gauges and meters ..................... 162
Indicators and warning lights................................................. 165
Multi-information display ........... 169
Head-up display ............................ 175
2-3. Operating the lights and windshield wipers
Headlight switch ............................ 183
Automatic High Beam ................ 188
Fog light switch .............................. 194 Windshield wipers and
washer ............................................ 195
Headlight cleaner switch ......... 200
2-4. Using other driving systems Cruise control ................................ 201
Dynamic radar cruise control........................................... 205
LKA (Lane-Keeping Assist) ...... 217
Driving assist systems................. 225
Hill-start assist control ............... 230
Pre-Collision System.................. 232
2-5. Driving information Cargo and luggage ..................... 240
Vehicle load limits........................ 243
Winter driving tips ....................... 244
Trailer towing ................................. 247
Dinghy towing ............................... 248
3-1. Using the air conditioning system and defogger
Automatic air conditioning system ............................................ 252
Rear window defogger switch ............................................. 260
Windshield wiper de-icer .......... 261
2When driving
3Interior features

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2
3
4
5
6
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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
5-1. Essential information Emergency flashers .................... 482
If your vehicle needs to be towed ............................................ 483
If you think something is wrong ............................................ 489
Event data recorder.................... 490
5-2. Steps to take in an emergency If a warning light turns on or a warning buzzer
sounds... ......................................... 492
If a warning message is displayed ........................................ 501
If you have a flat tire...................... 521
If the hybrid system will not start ................................................ 530
If you lose your keys .................... 532
If the electronic key does not operate properly ............... 533
If the vehicle 12-volt battery is discharged ............................... 536
If your vehicle overheats ............ 541
If the vehicle becomes stuck................................................ 545
If your vehicle has to be stopped in
an emergency.............................. 547
4Maintenance and care
5When trouble arises

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∗: If equipped
*: Refer to “Navigation System Owner's Manual”.
Cup holders P. 367
Remote Touch ∗*
Auxiliary box
∗ P. 370
Power outlet P. 374
Seat heater switches ∗
Seat heater/ventilator
switches
∗
P. 375
P. 375
Hybrid transmission
shift lever
P. 153
P position switch P. 153
OPEN CLOSE switch ∗*
AUX adapter
USB adapter
P. 307
P. 296
TILT switch ∗*

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For your information
Main Owner’s Manual
Please note that this manual applies to all models and explains all equipment, includ-
ing options. Therefore, you may find some explanations for equipment not installed
on your vehicle.
All specifications provided in this manual are current at the time of printing. How-
ever, because of the Lexus policy of continual product improvement, we reserve the
right to make changes at any time without notice.
Depending on specifications, the vehicle shown in the illustrations may differ from
your vehicle in terms of color and equipment.
Noise from under vehicle after turning off the hybrid system
Approximately five hours after the hybrid system is turned off, you may hear sound
coming from under the vehicle for several minutes. This is the sound of a fuel evapo-
ration leakage check and, it does not indicate a malfunction.
Accessories, spare parts and modification of your Lexus
A wide variety of non-genuine spare parts and accessories for Lexus vehicles are
currently available in the market. You should know that Toyota does not warrant
these products and is not responsible for their performance, repair, or replacement,
or for any damage they may cause to, or adverse effect they may have on, your
Lexus vehicle.
This vehicle should not be modified with non-genuine Lexus products. Modification
with non-genuine Lexus products could affect its performance, safety or durability,
and may even violate governmental regulations. In addition, damage or perfor-
mance problems resulting from the modification may not be covered under war-
ranty.

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Installation of a mobile two-way radio system
As the installation of a mobile two-way radio system in your vehicle could affect
electronic systems such as the multiport fuel injection system/sequential multiport
fuel injection system, cruise control system, anti-lock brake system, SRS airbag sys-
tem and seat belt pretensioner system, be sure to check with your Lexus dealer for
precautionary measures or special instructions regarding installation.
High voltage parts and cables on the hybrid vehicles emit approximately the same
amount of electromagnetic waves as the conventional gasoline powered vehicles or
home electronic appliances despite of their electromagnetic shielding.
Unwanted noise may occur in the reception of the mobile two-way radio.
Scrapping of your Lexus
The SRS airbag and seat belt pretensioner devices in your Lexus contain explosive
chemicals. If the vehicle is scrapped with the airbags and seat belt pretensioners left
as they are, this may cause an accident such as fire. Be sure to have the systems of
the SRS airbag and seat belt pretensioner removed and disposed of by a qualified
service shop or by your Lexus dealer before you scrap your vehicle.
Perchlorate Material
Special handling may apply, See www.dtsc.ca.gov/hazardouswaste/perchlorate.
Your vehicle has components that may contain perchlorate. These components may
include airbag, seat belt pretensioners, and wireless remote control batteries.

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CAUTION
■General precautions while driving
Driving under the influence: Never drive your vehicle when under the influence of
alcohol or drugs that have impaired your ability to operate your vehicle. Alcohol
and certain drugs delay reaction time, impair judgment and reduce coordination,
which could lead to an accident that could result in death or serious injury.
Defensive driving: Always drive defensively. Anticipate mistakes that other drivers
or pedestrians might make and be ready to avoid accidents.
Driver distraction: Always give your full attention to driving. Anything that distracts
the driver, such as adjusting controls, talking on a cellular phone or reading can
result in a collision with resulting death or serious injury to you, your occupants or
others.
■General precaution regarding children’s safety
Never leave children unattended in the vehicle, and never allow children to have or
use the key.
Children may be able to start the vehicle or shift the vehicle into neutral. There is
also a danger that children may injure themselves by playing with the cigarette
lighter, the windows, the moon roof, or other features of the vehicle. In addition, heat
build-up or extremely cold temperatures inside the vehicle can be fatal to children.
■Disposal of the hybrid battery (traction battery)
If your vehicle is disposed of without the hybrid battery having been removed, there
is a danger of serious electric shock if high voltage parts, cables and their connec-
tors are touched. In the event that your vehicle must be disposed of, the hybrid bat-
tery must be disposed of by your Lexus dealer or a qualified service shop. If the
hybrid battery is not disposed of properly, it may cause electric shock that can result
in death or serious injury.