Page 71 of 652

711-1. For safe use
GS450h_OM_OM30F70U_(U)
1
For safety and security
Exhaust gas precautions
Harmful substance to the human body is included in exhaust gases if
inhaled.
CAUTION
Exhaust gases include harmful carbon mono xide (CO), which is colorless and odor-
less. Observe the following precautions.
Failure to do so may cause exhaust gases enter the vehicle and may lead to an acci-
dent caused by light-headedness, or may lead to death or a serious health hazard.
■Important points while driving
●Keep the trunk lid closed.
●If you smell exhaust gases in the vehicle even when the trunk lid is closed, open
the windows and have the vehicle inspected at your Lexus dealer as soon as pos-
sible.
■When parking
●If the vehicle is in a poorly ventilated area or a closed area, such as a garage, stop
the hybrid system.
●Do not leave the vehicle with the hybrid system on for a long time.
If such a situation cannot be avoided, park the vehicle in an open space and
ensure that exhaust fumes do not enter the vehicle interior.
●Do not leave the hybrid system operating in an area with snow build-up, or where
it is snowing. If snowbanks build up around the vehicle while the hybrid system is
operating, exhaust gases may collect and enter the vehicle.
■Exhaust pipe
The exhaust system needs to be checked periodically. If there is a hole or crack
caused by corrosion, damage to a joint or abnormal exhaust noise, be sure to have
the vehicle inspected and repaired by your Lexus dealer.
Page 84 of 652

841-3. Theft deterrent system
GS450h_OM_OM30F70U_(U)
■System maintenance
The vehicle has a maintenance-free type alarm system.
■Items to check before locking the vehicle
To prevent unexpected triggering of the alarm and vehicle theft, make sure of the fol-
lowing:
●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.
■Triggering of the alarm
The alarm may be triggered in the following situations:
(Stopping the alarm deactivates the alarm system.)
■Alarm-operated door lock
●When the alarm is operating, the doors ar e locked automatically to prevent intrud-
ers.
●Do not leave the key inside the vehicle when the alarm is operating, and make sure
the key is not inside the vehicle when re charging or replacing the 12-volt battery.
●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. (P. 5 6 4 )
NOTICE
■To ensure the system operates correctly
Do not modify or remove the system. If modified or removed, the proper operation
of the system cannot be guaranteed.
Page 119 of 652
119
GS450h_OM_OM30F70U_(U)
3
Operation of
each component
3-1. Key information
Keys .................................................. 120
3-2. Opening, closing and locking the doors and trunk
Smart access system with push-button start ............ 123
Wireless remote control .......... 136
Doors ............................................... 139
Trunk ................................................. 143
3-3. Adjusting the seats Front seats ...................................... 150
Driving position memory ..........152
Head restraints ............................ 158
3-4. Adjusting the steering wheel and mirrors
Steering wheel ............................... 161
Inside rear view mirror...............162
Outside rear view mirrors ....... 164
3-5. Opening, closing the windows and moon roof
Power windows ............................. 167
Moon roof ........................................ 171
Page 130 of 652

130
GS450h_OM_OM30F70U_(U)
3-2. Opening, closing and locking the doors and trunk
■Conditions affecting operation
The smart access system with push-button start uses weak radio waves. In the follow-
ing situations, the communication between the electronic key and the vehicle may be
affected, preventing the smar t access system with push-button start, wireless remote
control and immobilizer system from operating properly. (Ways of coping: P. 559)
●When the electronic ke y battery is depleted
●Near a TV tower, electric power plant, gas station, radio station, large display, air-
port or other facility that generates strong radio waves or electrical noise
●When carrying a portable radio, cellular phone, cordless phone or other wireless
communication device
●When the electronic key is in contact with, or is covered by the following metallic
objects
• Cards to which aluminum foil is attached
• Cigarette boxes that have aluminum foil inside
• Metallic wallets or bags
•Coins
• Hand warmers made of metal
• Media such as CDs and DVDs
●When other wireless keys (that emit radio waves) are being used nearby
●When carrying the electronic key togeth er with the following devices that emit
radio waves
• Another vehicle’s electronic key or a wireless key that emits radio waves
• Personal computers or person al digital assistants (PDAs)
• Digital audio players
• Portable game systems
●If window tint with a metallic content or metallic objects are attached to the rear
window
Page 131 of 652

GS450h_OM_OM30F70U_(U)
1313-2. Opening, closing and locking the doors and trunk
3
Operation of each component
■Note for the entry function
●Even when the electronic key is within the effective range (detection areas), the
system may not operate properly in the following cases:
• The electronic key is too close to the window or outside door handle, near the
ground, or in a high place when the doors are locked or unlocked.
• The electronic key is near the ground or in a high place, or too close to the rear bumper center when the trunk is opened.
• The electronic key is on the instrument pa nel, rear package tray or floor, or in the
door pockets or glove box when the hybrid system is started or power switch
modes are changed.
●Do not leave the electronic key on top of the instrument panel or near the door
pockets when exiting the vehicle. Depending on the radio wave reception condi-
tions, it may be detected by the ante nna outside the cabin and the door will
become lockable from the outside, possibly trapping the electronic key inside the
vehicle.
●As long as the electronic key is within the effective range, the doors may be locked
or unlocked by anyone. However, only th e doors detecting the electronic key can
be used to unlock the vehicle.
●Even if the electronic key is not inside the vehicle, it may be possible to start the
hybrid system if the electronic key is near the window.
●The doors may unlock or lock if a large am ount of water splashes on the door han-
dle, such as in the rain or in a car wash when the electronic key is within the effec-
tive range. (The doors will automatically be locked after approximately 60 seconds
if the doors are not opened and closed.)
●If the wireless remote control is used to lock the doors when the electronic key is
near the vehicle, there is a possibility that the door may not be unlocked by the
entry function. (Use the wireless re mote control to unlock the doors.)
Page 136 of 652
136
GS450h_OM_OM30F70U_(U)
3-2. Opening, closing and locking the doors and trunk
Wireless remote control
The wireless remote control can be used to lock and unlock the vehicle.
Locks all the doors
Check that the door is securely
locked.
Unlocks all the doors
Pressing the button unlocks the
driver’s door. Pressing the button
again within 5 seconds unlocks the
other doors.
Opens the windows and moon
roof (press and hold)
*
Opens the trunk
(press and hold)
If the vehicle is equipped with a power
trunk opener and closer, the trunk lid
automatically opens fully.
Sounds the alarm
(press and hold) ( P. 137)
*: This setting must be customized at
your Lexus dealer.
Function summary
1
2
3
4
5
Page 137 of 652

GS450h_OM_OM30F70U_(U)
1373-2. Opening, closing and locking the doors and trunk
3
Operation of each component
■Operation signals
Doors:
A buzzer sounds and the emergency flashe rs flash to indicate that the doors have
been locked/unlocked. (Locked: once; Unlocked: twice)
Tr u n k :
A buzzer sounds to indicate that the trunk has been opened.
Windows and moon roof:
A buzzer sounds to indicate that the windows and moon roof are operating.
■Welcome light illumination control
P. 1 2 3
■Door lock buzzer
If an attempt to lock the doors is made when a door is not fully closed, a buzzer
sounds continuously for 5 se conds. Fully close the door to stop the buzzer, and lock
the vehicle once more.
■Pa n i c m o d e
■Security feature
P. 1 2 3
■Alarm
Using the wireless remote control to lo ck the doors will set the alarm system.
( P. 8 3 )
■Conditions affecting operation
P. 1 3 0
When is pressed for longer than about
one second, an alarm will sound intermittently
and the vehicle lights will flash to deter any
person from trying to break into or damage
your vehicle.
To stop the alarm, press any button on the
electronic key.
Page 165 of 652

1653-4. Adjusting the steering wheel and mirrors
3
Operation of each component
GS450h_OM_OM30F70U_(U)When either “L” or “R” of the mirror se
lect switch is selected, the outside
rear view mirrors will automatically angle downwards when the vehicle is
reversing in order to give a better view of the ground. To disable this func-
tion, select neither “L” nor “R”.
■Adjusting the mirror angle when the vehicle is reversing
With the shift lever in R, adjust the mirror angle at a desired position.
The adjusted angle will be memorized and the mirror will automatically
tilt to the memorized angle whenever the shift lever is shifted to R from
next time.
The memorized downward tilt position of the mirror is linked to the normal
position (angle adjusted with the shift lever in other than R). Therefore, if the
normal position is changed after adjustment, the tilt position will also change.
When the normal position is changed, readjust the angle in reversing.
■Mirror angle can be adjusted when
The power switch is in ACCESSORY or ON mode.
■When the mirrors are fogged up
The outside rear view mirrors can be cleare d using the mirror defoggers. Turn on the
rear window defogger to turn on the outside rear view mirror defoggers. ( P. 3 6 0 )
■Automatic adjustment of the mirror angle
A desired mirror face angle can be entered to memory and recalled automatically
by the driving position memory. ( P. 1 5 2 )
■Auto anti-glare function
When the anti-glare inside rear view mirror is set to automatic mode, the outside
rear view mirrors will activate in conjunction with the anti-glare inside rear view mir-
ror to reduce reflected light. ( P. 1 6 2 )
Linked mirror function when reversing