sensor Lexus GS450h 2009 Owner's Manual

29
1-1. Hybrid system
1
Before driving
GS_HV_U (OM30B44U)
April 27, 2009 10:09 am
■Hybrid battery air vent
Hybrid battery air vent
There is an air intake vent on the
package tray for the purpose of
cooling the hybrid battery (trac-
tion battery). If the vent becomes
blocked, the hybrid battery may
overheat, leading to a reduction in
hybrid battery output.
Emergency shut off system
The emergency shut off system blocks off the high voltage current and
stops the fuel pump to minimize the risk of electrocution and fuel leakage
when a certain level of impact is detected by the impact sensor. If the
emergency shut off system activates, your vehicle will not restart. To
restart the hybrid system, contact your Lexus dealer.
Energy monitor/consumption screenYou can view the status of your hybrid system on the multi-information
display ( →P. 166) and the touch screen ( →P. 240). The following images
are examples only, and may vary slightly from actual conditions.
■ Energy monitor
● How to display on the touch screen:
Press .
Touch on the “Information” screen.
If the “Consumption” screen is displayed, touch .
● How to display on the multi-information display:
Push the “DISP” switch on the steering wheel several times to
select the energy monitor display.
STEP1
STEP2
STEP1
GS450h_HV_U.book Page 29 Monday, April 27, 2009 10:10 AM

40
1-3. Opening, closing and locking the doors and trunk
GS_HV_U (OM30B44U)
April 27, 2009 10:09 am
Unlocking and locking the doorsGrip the handle to unlock the
door.
Make sure to touch the sensor on
the back of the handle.
The door cannot be unlocked for 3
seconds after the door is locked.
Press the lock button to lock the
door.
Unlocking the trunkPress the button to unlock the
trunk.
GS450h_HV_U.book Page 40 Monday, April 27, 2009 10:10 AM

76
1-4. Adjustable components (seats, mirrors, steering wheel)
GS_HV_U (OM30B44U)
April 27, 2009 10:09 am
Pre-collision seat belts (front seats of vehicles with pre-collision system)
If the pre-collision sensor detects that a collision is unavoidable, the pre-
collision system will retract the seat belt, thus enhancing the effectiveness
of the seat belt pretensioner in a crash.
The same will happen if the driver makes an emergency braking or loses con-
trol of the vehicle. ( →P. 221)
■Emergency locking retractor (ELR)
The retractor will lock the belt during a sudden stop or on impact. It may also lock if
you lean forward too quickly. A slow, easy motion will allow the belt to extend, and
you can move around fully.
■Automatic locking retractor (ALR)
When a passenger’s shoulder belt is completely extended and then retracted even
slightly, the belt is locked in that position and cannot be extended. This feature is
used to hold the child restraint system (CRS) firmly. To free the belt again, fully
retract the belt and then pull the belt out once more. ( →P. 1 2 5 )
■Pregnant women
Obtain medical advice and wear the seat belt
in the proper way. (→P. 74 )
Women who are pregnant should position
the lap belt as low as possible over the hips in
the same manner as other occupants. Extend
the shoulder belt completely over the shoul-
der and position the belt across the chest.
Avoid belt contact over the rounding of the
abdominal area.
If the seat belt is not worn properly, not only a
pregnant woman, but also the fetus could suf-
fer death or serious injury as a result of sud-
den braking, sudden swerving or a collision.
GS450h_HV_U.book Page 76 Monday, April 27, 2009 10:10 AM

78
1-4. Adjustable components (seats, mirrors, steering wheel)
GS_HV_U (OM30B44U)
April 27, 2009 10:09 am
CAUTION
Observe the following precautions to reduce the risk of injury in the event of sudden
braking, sudden swerving or an accident. Failing to do so may cause death or serious
injury.
■Wearing a seat belt
●Ensure that all passengers wear a seat belt.
●Always wear a seat belt properly.
●Each seat belt should be used by one person only. Do not use a seat belt for more
than one person at the same time, including children.
●Lexus recommends that children should be seated in the rear seat and always use
a seat belt and/or an appropriate child restraint system.
●Do not recline the seat any more than necessary to achieve a proper seating
position. The seat belt is most effective when the occupants are sitting up straight
and well back in the seats.
●Do not wear the shoulder belt under your arm.
●Always wear your seat belt low and snug across your hips.
■Adjustable shoulder anchor
Always make sure the shoulder belt is positioned across the center of your shoul-
der. The belt should be kept away from your neck, but not falling off your shoulder.
Failure to do so could reduce the amount of protection in an accident and cause
death or serious injuries in the event of a sudden stop, sudden swerve or accident.
(→ P. 7 5 )
■Seat belt pretensioners
●Do not place anything, such as a cushion, on the front passenger’s seat. Doing so
will disperse the passenger’s weight, which prevents the sensor from detecting
the passenger’s weight properly. As a result, the seat belt pretensioner for the
front passenger’s seat may not activate in the event of a collision.
●If the pretensioner has activated, the SRS warning light will come on. In that case,
the seat belt cannot be used again and must be replaced at your Lexus dealer.
GS450h_HV_U.book Page 78 Monday, April 27, 2009 10:10 AM

82
1-4. Adjustable components (seats, mirrors, steering wheel)
GS_HV_U (OM30B44U)
April 27, 2009 10:09 am
Inside rear view mirror
■To prevent sensor error
CAUTION
■While driving
Do not adjust the position of the mirror.
Doing so may lead to mishandling of the vehicle and an accident, resulting in death
or serious injury.
In the auto mode, sensors are used to detect the headlights of vehicles
behind and automatically reduces the reflected light.
Turns auto mode on/off
The indicator comes on when
auto mode is turned on.
The mirror is automatically set to
auto whenever the “POWER”
switch is turned ON mode.
To ensure correct functioning of the sensors,
do not touch or cover the sensors.
GS450h_HV_U.book Page 82 Monday, April 27, 2009 10:10 AM

104
1-8. Safety information
GS_HV_U (OM30B44U)
April 27, 2009 10:09 am
Airbag system components
Occupant detection system
(ECU and sensors)
Front passenger’s seat belt
buckle switch
Knee airbag
Front passenger airbag
Curtain shield airbag
Front side airbag
Side and curtain shield airbag
sensorCurtain shield and rear side
airbag sensor
SRS warning light
Rear side airbag (if equipped)
Driver airbag
Driver’s seat belt buckle switch
Driver’s seat position sensor
“AIR BAG ON” and “AIR BAG
OFF” indicator lights
Airbag sensor assembly
Front airbag sensor
Curtain shield airbag
Can help protect primarily the head of front occupants and rear out-
board occupants.
GS450h_HV_U.book Page 104 Monday, April 27, 2009 10:10 AM

105
1-8. Safety information
1
Before driving
GS_HV_U (OM30B44U)
April 27, 2009 10:09 am
Your vehicle is equipped with “ADVANCED AIRBAGS” designed based
on US motor vehicle safety standards (FMVSS208). The airbag system
controls airbag deployment power for the driver and front passenger. 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.
The main SRS airbag system components are shown above. The SRS air-
bag system is controlled by the airbag sensor assembly. The airbag sen-
sor assembly consists of a safing sensor and an airbag sensor.
In certain types of severe frontal or side impacts, the SRS airbag system
triggers the airbag inflators. A chemical reaction in the inflators quickly
fills the airbags with non-toxic gas to help restrain the motion of the occu-
pants.
■If the SRS airbags deploy (inflate)
●Bruising and slight abrasions may result from contact with a deploying (inflating)
SRS airbag.
●A loud noise and white powder will be emitted.
●Parts of the airbag module (steering wheel hub, airbag cover and inflator) as
well as the seats, and parts of the front pillar and roof side rail, may be hot for
several minutes. The airbag itself may also be hot.
●The windshield may crack.
GS450h_HV_U.book Page 105 Monday, April 27, 2009 10:10 AM

114
1-8. Safety information
GS_HV_U (OM30B44U)
April 27, 2009 10:09 am
CAUTION
■SRS airbag precautions
●If breathing becomes difficult after the SRS airbag has deployed, open a door or
window to allow fresh air in, or leave the vehicle if it is safe to do so. Wash off any
residue as soon as possible to prevent skin irritation.
●If the areas where the SRS airbags are stored, such as the steering wheel pad and
front pillar garnish, are damaged or cracked, have them replaced by your Lexus
dealer.
●Do not place anything, such as a cushion, on the front passenger’s seat. Doing so
will disperse the passenger’s weight, which prevents the sensor from detecting
the passenger’s weight properly. As a result, the SRS front passenger airbag may
not deploy in the event of a collision.
■Modification and disposal of SRS airbag system components
Do not dispose of your vehicle or perform any of the following modifications with-
out consulting your Lexus dealer. The SRS airbags may malfunction or deploy
(inflate) accidentally, causing death or serious injury.
●Installation, removal, disassembly and repair of the SRS airbags
●Repairs, modifications, removal or replacement of the steering wheel, instrument
panel, dashboard, seats or seat upholstery, front, side and rear pillars or roof side
rail
●Repairs or modifications of the front fender, front bumper, or side of the occupant
compartment
●Installation of snow plows, winches, etc. to the front grille (bull bars, kangaroo bar
etc.)
●Modifications to the vehicle’s suspension system
●Installation of electronic devices such as mobile two-way radios or CD players
●Modifications to your vehicle for a person with a physical disability
GS450h_HV_U.book Page 114 Monday, April 27, 2009 10:10 AM

170
2-3. Operating the lights and windshield wipers
GS_HV_U (OM30B44U)
April 27, 2009 10:09 am
AFS (Adaptive Front lighting System)
AFS improves visibility at intersections and on curves by automatically
adjusting the level of the headlights according to vehicle speed and the
degree of the tire angle that are controlled by steering input.
Operates at speeds of 6 mph (10 km/h) or higher.
■ Deactivating AFS
Press the switch to turn it off.
The indicator turns on when
the AFS is deactivated.
■Daytime running light system
To make your vehicle more visible to other drivers, the headlights turn on automati-
cally (at a reduced intensity) whenever the hybrid system is started and the parking
brake is released. Daytime running lights are not designed for use at night.
■Headlight control sensor
The sensor may not function properly if an
object is placed on the sensor, or anything
that blocks the sensor is affixed to the wind-
shield.
Doing so interferes with the sensor detecting
the level of ambient light and may cause the
automatic headlight system to malfunction.
GS450h_HV_U.book Page 170 Monday, April 27, 2009 10:10 AM

171
2-3. Operating the lights and windshield wipers
2
When driving
GS_HV_U (OM30B44U)
April 27, 2009 10:09 am
■Automatic light off system
The headlights and tail lights turn off 30 seconds after all doors are closed if the
“POWER” switch has been switched to ACCESSORY mode or turned OFF while
the headlights are turned on. (The lights turn off immediately if the button on the
key is pressed after all doors are locked.)
To turn the lights on again, switch to ON mode, or turn the light switch off once and
then back to the or position.
■Automatic headlight leveling system
The level of the headlights is automatically adjusted according to the number of
passengers and the loading condition of the vehicle to ensure that the headlights do
not interfere with other road users.
■If the indicator flashes...
It may indicate a malfunction in the system. Contact your Lexus dealer.
■Customization that can be configured at Lexus dealer
Settings (e.g. light sensor sensitivity) can be changed.
(Customizable features →P. 5 9 3 )
NOTICE
■To prevent 12 volt battery discharge
Do not leave the lights on longer than necessary when the hybrid system is off.
GS450h_HV_U.book Page 171 Monday, April 27, 2009 10:10 AM