warning lights Lexus HS250h 2012 Owner's Manual

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HS250h_U_75050U
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1-8. Safety informationCorrect driving posture ............. 107
SRS airbags ..................................... 109
Front passenger occupant classification system .................... 121
Child restraint systems ............... 126
Installing child restraints ............. 130
2-1. Driving procedures Driving the vehicle ........................ 142
Power (ignition) switch ............... 152
EV drive mode ............................... 157
Hybrid transmission ..................... 160
Turn signal lever ............................ 166
Parking brake ................................. 167
Horn.................................................... 168
2-2. Instrument cluster Gauges and meters ..................... 169
Indicators and warning lights ... 173
Multi-information display ............ 177
Head-up display ............................ 183 2-3. Operating the lights and
windshield wipers
Headlight switch .............................. 191
Automatic High Beam ................ 196
Fog light switch ............................. 202
Windshield wipers and washer ........................................... 204
Headlight cleaner switch ............. 211
2-4. Using other driving systems Cruise control ................................ 212
Dynamic radar cruise control............................................. 216
LKA (Lane-Keeping Assist) .... 230
Driving assist systems................. 238
Hill-start assist control ............... 243
Pre-Collision System.................. 245
2-5. Driving information Cargo and luggage ..................... 254
Vehicle load limits........................ 257
Winter driving tips ...................... 258
Trailer towing .................................. 261
Dinghy towing ............................... 262
2When driving

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1-8. Safety information
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Before driving
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SRS airbag system componentsYour vehicle is equipped with ADVANCED AIRBAGS designed based
on the US motor vehicle safety standards (FMVSS208). The airbag sys-
tem controls airbag deployment power for the driver and front passen-
ger. The driver airbag system consists of the driver’s seat position sensor
etc. The front passenger’s airbag system consists of the front passenger
occupant classification sensor etc. Front passenger occupant
classification system
(ECU and sensors)
Front passenger’s seat belt
buckle switch
Knee airbags
Front passenger airbag
Curtain shield airbags
Front side airbags
Side and curtain shield airbag
sensors
Curtain shield and rear side
airbag sensors
SRS warning light
Rear side airbags
Driver airbag
Driver’s seat belt buckle switch
Driver’s seat position sensor
“A I R B A G O N ” a n d “A I R B A G
OFF” indicator lights
Airbag sensor assembly
Front airbag sensors

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1-8. Safety information
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Condition and operation in the front passenger occupant classification system
■Adult*1
■Child *3 or child restraint system*4
Indicator/
warning light “AIR BAG ON” and “AIR BAG OFF”
indicator lights “A I R B A G
ON”
SRS warning light Off
Front passenger’s seat belt reminder light Flashing
*2
DevicesFront passenger airbag
Activated
Side airbag on the front passenger seatCurtain shield airbag in the front passenger side
Front passenger knee airbag
Front passenger’s seat belt pretensioner
Indicator/
warning light “AIR BAG ON” and “AIR BAG OFF”
indicator lights “A I R B A G
OFF”
*5
SRS warning light Off
Front passenger’s seat belt reminder light Flashing
*2
DevicesFront passenger airbag Deactivated
Side airbag on the front passenger seat ActivatedCurtain shield airbag in the front passenger side
Front passenger knee airbag Deactivated
Front passenger’s seat belt pretensioner Activated

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1-8. Safety information
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Before driving
HS250h_U_75050U■
Unoccupied
■ There is a malfunction in the system
*1: The system judges a person of adult size as an adult. When a smaller
adult sits in the front passenger seat, the system may recognize him/
her as a child depending on his/her physique and posture.
*2: In the event the front passenger does not wear a seat belt.
*3: When a larger child who has outgrown a child restraint system sits inthe front passenger seat, the system may recognize him/her as an
adult depending on his/her physique or posture.
Indicator/
warning light “A I R B A G O N ” a n d “A I R B A G O F F ”
indicator lightsNot illuminated
SRS warning light Off
Front passenger’s seat belt reminder light
Devices Front passenger airbag Deactivated
Side airbag on the front passenger seat Activated
Curtain shield airbag in the front passenger side
Front passenger knee airbagDeactivated
Front passenger’s seat belt pretensioner
Indicator/
warning light “A I R B A G O N ” a n d “A I R B A G O F F ”
indicator lights “A I R B A G
OFF”
SRS warning light On
Front passenger’s seat belt reminder light Off
Devices Front passenger airbag Deactivated
Side airbag on the front passenger seat Activated
Curtain shield airbag in the front passenger side
Front passenger knee airbag Deactivated
Front passenger’s seat belt pretensioner Activated

When driving2
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2-1. Driving proceduresDriving the vehicle.................. 142
Power (ignition) switch .......... 152
EV drive mode.......................... 157
Hybrid transmission ............... 160
Turn signal lever ....................... 166
Parking brake ........................... 167
Horn ............................................ 168
2-2. Instrument cluster Gauges and meters ................ 169
Indicators and warning lights ......................................... 173
Multi-information display ..... 177
Head-up display ...................... 183
2-3. Operating the lights and windshield wipers
Headlight switch....................... 191
Automatic High Beam ........... 196
Fog light switch ...................... 202
Windshield wipers and washer ................................... 204
Headlight cleaner switch....... 211 2-4. Using other driving systems
Cruise control.......................... 212
Dynamic radar cruise control ..................................... 216
LKA (Lane-Keeping Assist) ....... 230
Driving assist systems ........... 238
Hill-start assist control ......... 243
Pre-Collision System ............ 245
2-5. Driving information Cargo and luggage ............... 254
Vehicle load limits .................. 257
Winter driving tips ................. 258
Trailer towing ............................ 261
Dinghy towing......................... 262

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2-2. Instrument cluster
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When driving
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Indicators and warning lights
The indicator and warning lights on the instrument cluster and center
panel inform the driver of the status of the vehicle’s various systems.
Instrument cluster
Center panel (without a navigation system)
Center panel (with a navigation system)

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2-2. Instrument cluster
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When driving
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*1: These lights turn on when the “POWER” switch is turned to the ON modeto indicate that a system check is being performed. They will turn off after
the hybrid system is on, or after a few seconds. There may be a malfunction
in a system if a light does not turn on, or if the lights do not turn off. Have
the vehicle inspected by your Lexus dealer.
*2:The light flashes to indicate that the system is operating.
*3:The light turns on when a part of the system is turned off. The light flashesquickly and “BRAKE!” appear on the multi-information display and head-
up display (if equipped) to indicate that the system is operating.
VSC OFF indicator
( → P. 2 4 0 ) Shift position indicators
(→ P. 1 6 0 )
(if equipped)
“PCS” warning
(→ P. 2 4 6 )SRS airbag on-off
indicator ( →P. 121)
*1
*1, 3*1

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2-2. Instrument cluster
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CAUTION
■If a safety system warning light does not come on
Should a safety system light such as the ABS and SRS airbag warning light not
come on when you start the hybrid system, this could mean that these systems are
not available to help protect you in an accident, which could result in death or seri-
ous injury. Have the vehicle inspected by your Lexus dealer immediately if this
occurs.
■Warning lights
Warning lights inform the driver of malfunctions in any of the vehi-
cle’s systems. ( →P. 502)
*1: These lights turn on when the “POWER” switch is turned to ON mode
to indicate that a system check is being performed. They will turn off
after the hybrid system is on, or after a few seconds. There may be a
malfunction in a system if a light does not turn on, or if the lights do not
turn off. Have the vehicle inspected by your Lexus dealer.
*2: The light flashes to indicate a malfunction.
(U.S.A.)(Canada)(U.S.A.)(Canada)
(U.S.A.)(Canada)(if equipped)
(if equipped)(if equipped)(if equipped)
(if equipped)(for driver)(for front
passenger)
*1*1*1*1*1*1*1
*1*1*1*1*1, 2
*1*1, 2*2*2*2*1*1
*2

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2-4. Using other driving systems
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When driving
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■Automatic cancelation of constant speed control
The cruise control will stop maintaining the vehicle speed in the following situations:
●Actual vehicle speed is more than approximately 10 mph (16 km/h) below the
set vehicle speed.
At this time, the memorized set speed is not retained.
●Vehicle speed falls below approximately 25 mph (40 km/h).
●Enhanced VSC is activated.
■Radar sensor and grille cover
Always keep the sensor and grille cover clean to ensure that the vehicle-to-vehicle
distance control operates properly. (Some obstructions, such as snow, ice and plas-
tic objects, cannot be detected by the obstruction sensor.)
Dynamic radar cruise control is canceled if an obstruction is detected.
■Warning lights, messages and buzzers for dynamic radar cruise control
Warning lights, messages and buzzers are used to indicate a system malfunction or
to inform the driver of the need for caution while driving. (→P. 503, 513, 516)
Grille cover
Radar sensor

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2-4. Using other driving systems
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●When the lane lines cannot be recognized while driving.
●The wiper operates continuously.
●When the lane departure warning function is activated.
The lane departure warning function will be temporarily canceled and will not
resume until a few seconds elapse after it is activated.
■No-handed driving warning
If the steering wheel is not operated for about 15 seconds on a straight road or
about 5 seconds on a curve, the buzzer will beep twice, indicators on the multi-
information display will flash, and the lane keeping assist function will be temporarily
canceled. If you drive the vehicle with your hands lightly touching the steering
wheel, this may also be detected as no-handed driving.
■When the vehicle has been parked in the sun
The LKA system functions may not be available for a while after driving has started.
In such cases, turn the LKA system off and turn it on again after normal temperature
returns. When the temperature in the cabin decreases and the temperature around
the camera sensor becomes suitable for its operation, the functions will begin to
operate.
■Warning lights and messages for LKA
Warning lights and messages are used to indicate a system malfunction or to inform
the driver of the need for caution while driving. (→P. 5 0 3 , 5 1 6 )