key battery Lexus GS450h 2007 Using the hands-free system (for cellular phone) / LEXUS 2007 GS450H FROM JULY 2006 PROD. OWNER'S MANUAL (OM30A05U)

TABLE OF CONTENTSIndex
iv
3-4. Using the hands-free 
system......................................... 261
Hands-free system ....................... 261
Using the Bluetooth
® 
phone ............................................. 265
Setting the hands-free 
system ............................................ 278
3-5. Using the interior lights ......... 303 Interior lights list........................... 303
3-6. Using the storage 
features ..................................... 306
List of storage fe atures.............. 306
3-7. Other interior features............ 312 Sun visors.......................................... 312
Vanity mirror ................................... 313
Clock .................................................. 314
Outside temperature 
display ............................................. 315
Ashtrays ............................................ 316
Cigarette lighter ............................ 317
Power outlet .................................... 318
Seat heaters ..................................... 319
Seat heaters and 
ventilators ...................................... 321
Armrest ............................................ 323
Rear sunshade ............................... 324
Floor mats........................................ 326
Trunk features................................ 327
Garage door opener .................. 329
Compass........................................... 334
Lexus Link System ...................... 338 4-1. Maintenance and care............ 352
Cleaning and protecting the 
vehicle exterior .......................... 352
Cleaning and protecting the 
vehicle interior............................ 354
4-2. Maintenance.............................. 357 Maintenance requirements ..... 357
General maintena nce ............... 359
Emission inspection and 
maintenance (I/M) 
programs ...................................... 362
4-3. Do-it-yourself 
maintenance............................ 363
Do-it-yourself service 
precautions .................................. 363
Hood.................................................. 366
Positioning the jack ..................... 367
Engine compartm ent.................. 369
Tires .................................................. 383
Tire inflation pressure................. 393
Wheels.............................................. 397
Air conditioning filter.................. 399
Electronic key battery ................. 401
Checking and replacing 
fuses ............................................... 403
Headlight aim.................................. 419
Light bulbs ........................................ 421
4Maintenance and care

1
2
3
4
5
6
7
v
5-1. Essential information .............. 428If your vehicle needs to be 
towed.............................................. 428
If you think something is 
wrong ............................................. 435
Event data recorder .................... 436
5-2. Steps to take in an 
emergency .............................. 438
If a warning light turns on or a 
warning buzzer sounds............... 438
If a warning message is 
displayed....................................... 444
If you have a flat tire (Vehicles 
with run-flat tires) ...................... 460
If you have a flat tire (Vehicles 
with standard tires) .................... 461
If the hybrid system will not 
start .................................................. 471
If the shift lever cannot be 
shifted from P .............................. 472
If you lose your keys .................... 473
When the electronic key 
battery is discharged ............... 474
If the 12 volt battery is 
discharged ................................... 476
If your vehicle overheats .......... 480
If the vehicle becomes 
stuck............................................... 483 6-1. Specifications............................ 486
Maintenance data ........................ 486
Fuel information ............................ 495
Tire information ........................... 498
6-2. Customization ........................... 510 Customizable features ............... 510
6-3. Initialization ................................ 514 Items to initialize ............................ 514
Reporting safety defects for 
U.S. owners................................... 516
Alphabetical index.................... 518
What to do if............................... 526
5When trouble arises6Vehicle specifications
7For US owners
Index

15
1-3. Opening, closing and locking the doors and trunk
1
Before driving
Antenna locationAntennas outside cabin
Antennas inside cabin
Antenna outside trunk
Antenna inside trunk
■Operation signals
A buzzer sounds and the emergency flashers flash to indicate that the doors have
been locked/unlocked. (Locked: Once; Unlocked: Twice)
■Conditions affecting operation
The smart access system with push-button start and wireless remote control func-
tion may not operate normally in the following situations.
●Near a TV tower, radio station, electric power plant, airport or other facility that
generates strong radio waves
●When carrying a portable radio, cellular phone or other wireless communica-
tion device
●When multiple electronic keys are in the vicinity
●When the electronic key has come into contact with, or is covered by a metallic
object
●When a wireless key (that emits radio waves) is being used nearby
●When the electronic key has been left ne ar an electrical appliance such as a
personal computer
In these situations, remove all possible caus e of malfunction, or follow the steps out-
lined in “When the electronic key battery is discharged”. ( P. 4 74 )

17
1-3. Opening, closing and locking the doors and trunk
1
Before driving
■Battery-saving function
In the following circumstances, the entry function is disabled in order to prevent the
vehicle and electronic key batteries from discharging.
●When the entry function has not been used for 2 weeks or more
●When the electronic key has been left within approximately 3 ft. (1 m) of the
vehicle for 10 minutes or more
The system will resume operation when...
●The vehicle is locked using the door handle lock switch
●The vehicle is locked/unlocked using the wireless remote control function 
(  P. 22) or the mechanical key ( P. 4 74 )
■Electronic key battery depletion
●The standard battery life is 1 to 2 years. (The battery becomes depleted even if
the electronic key is not used.) If the smart access system with push-button start
or the wireless remote control function does not operate, or the detection area
becomes smaller, the battery may be depleted. Replace the battery when nec-
essary. (  P. 4 0 1 )
●To avoid serious deterioration, do not leave the electronic key within 3 ft. (1 m) of
the following electrical appliances.
•TVs
• Personal computers
• Recharging cellular phones or cordless phones
• Table lamps
■To operate the system properly
Make sure to carry the electronic key wh en operating the system. Do not get the
electronic key too close to the vehicle wh en operating the system from the outside
of the vehicle.
Depending on the position and holding condition of the electronic key, the key may
not be detected corr ectly and the system may not operate properly. (The alarm may
go off accidentally, or the door lock prevention may not function.)

20
1-3. Opening, closing and locking the doors and trunk
■When the electronic key battery is fully depleted
●Locking and unlocking the doors and trunk: Use the mechanical key. 
(  P. 4 74 )
●Starting the hybrid system:  P. 4 7 5
●Replacing the battery: P. 4 0 1
■Customization
Settings (e.g. smart access sy stem with push-button start, theft deterrent system)
can be changed. ( P. 5 1 0 )
■Certification for the smart access system with push-button start
For vehicles sold in the U.S.A.
NOTE:
This device complies with Part 15 of the FCC Rules. Operation is subject to the fol-
lowing two conditions: (1) this device may not cause harmful interference, and (2)
this device must accept any interference received, including interference that may
cause undesired operation.
FCC WARNING: 
Changes or modifications not expressly approved by the party responsible for
compliance could void the user's authority to operate the equipment.
AlarmSituationCorrection procedure
Interior alarm rings
continuously
Switched to “ACC” mode
while the driver's door is
open (Opened the driver's
door when the power switch
is in “ACC” mode.)
Tu r n t h e p o w e r s w i t c h
“OFF” and close the
driver's door.
Turned the power switch
“OFF” while the driver's door
is open
Close the driver's door.
FCC ID: NI4TMLF-1

22
1-3. Opening, closing and locking the doors and trunk
Wireless remote control
■2-step unlocking function
When you push the button, the driver's door is unlocked. Pushing the button
again within 3 seconds unlocks the other doors.
■Operation indicator
●Doors: A buzzer sounds and the emergency flashers flash to indicate that the
doors have been locked/unlocked. (Locked: Once; Unlocked: Twice)
●Trunk: A buzzer sounds to indicate that the trunk has been unlocked.
●Windows and moon roof: A buzzer sounds when the windows and moon roof
begin to open.
■Door lock buzzer
If a door is not fully closed, a buzzer soun ds continuously if an attempt to lock the
door is made. Fully close the door to st op the buzzer, and lock the vehicle once
more.
■Security feature
 P. 1 8
■When the electronic key battery is fully depleted
P. 2 0
The wireless remote control can be used to lock and unlock the vehicle and
the trunk from outside the vehicle.
Locks all doors
Unlocks all doors
Opens the windows and
moon roof (push and hold)
Unlocks the trunk 
(push and hold)
Sounds alarm 
(push and hold) ( P. 6 2 )

104
2-1. Driving procedures
■If the hybrid system does not start
The hybrid vehicle immobilizer system may not have been deactivated. (P. 5 9 )
■When the power switch indicator flashes in amber
The system may be malfunctioning. Have the vehicle inspected by your Lexus
dealer immediately.
■If the “READY” light does not come on
If the “READY” light does not come on when you press the power switch with the
shift lever in “P” and the brake pedal pressed, contact your Lexus dealer immedi-
ately.
■Auto power OFF function
If the vehicle is left in the “ACC” mode for more than an hour with the shift lever in
“P”, the power switch will automatically turn “OFF”.
■When the ambient temperature is low
Such as during winter driving conditions, it may take time until the “READY” light
comes on.
■Sounds and vibrations specific to a hybrid vehicle
 P. 4
■When the hybrid system is malfunctioning
P. 4 5 0
■Electronic key battery depletion
P. 1 7
■When the electronic key battery is discharged
P. 4 0 1
■Conditions affecting operation
P. 1 5
■Leak detection pump
Several hours after the hybrid system is turned off, you may hear a sound coming
from underneath the luggage compartment for several minutes. This is normal
operation and does not indicate a malfunction.

124
2-3. Operating the lights and windshield wipers
■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 “ACC” or turned “OFF” while the headlights are
turned on. (The lights turn off immediat ely if the button on the key is pressed
after all doors are locked.)
To turn the lights on again, switch to “IG-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 automatica lly 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
Settings (e.g. light sensor sensitivity) can be changed. ( P. 5 1 0 )
NOTICE
■To prevent 12 volt battery discharge
Do not leave the lights on longer than necessary when the hybrid system is off.

Maintenance and care4
351
4-1. Maintenance and care ........ 352Cleaning and protecting the 
vehicle exterior........................ 352
Cleaning and protecting the 
vehicle interior......................... 354 4-2. Maintenance........................... 357
Maintenance requirements............................ 357
General maintena nce ............. 359
Emission inspection and 
maintenance (I/M) 
programs ................................... 362
4-3. Do-it-yourself 
maintenance......................... 363
Do-it-yourself service 
precautions ............................... 363
Hood .............................................. 366
Positioning the jack .................. 367
Engine compartment .............. 369
Tires ................................................. 383
Tire inflation pressure .............. 393
Wheels .......................................... 397
Air conditioning filter .............. 399
Electronic key battery .............. 401
Checking and replacing 
fuses ............................................. 403
Headlight aim .............................. 419
Light bulbs...................................... 421

401
4-3. Do-it-yourself maintenance
4
Maintenance and care
Electronic key battery
Replace the battery with a new one if it is discharged.
■You will need the following items:
●Flathead screwdriver
● Small Phillips-head sc rewdriver
● Lithium battery (CR1632)
■ Replacing the battery
Take out the mechanical key.
Remove the cover.
Remove the depleted battery.
Insert a new battery with the “+”
terminal facing up.
STEP1
STEP2
STEP3