roof Lexus GS450h 2007 Using the hands-free system (for cellular phone) / LEXUS 2007 GS450H THROUGH JUNE 2006 PROD. (OM30727U) Owner's Guide

342
3-7. Other interior features
CAUTION
■Caution while driving
Do not adjust the display.
Be sure to adjust the display on ly when the vehicle is stopped.
■When doing the circling calibration
Be sure to secure a wide space, and watch out for people and vehicles in the neigh-
borhood. Do not violate any local traffic rules while performing circling calibration.
NOTICE
■To avoid the compass malfunctions
Do not place magnets or any metal objects near the inside rear view mirror. 
Doing this may cause a malfunction of the compass sensor.
■To ensure normal operation of the compass
●Do not perform circling calibration of the compass in a place where the earth's
magnetic field is subject to interference by artificial magnetic fields.
●During calibration, do not operate electr ic systems (moon roof, power windows,
etc.) as they may interfere with the calibration.

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4-3. Do-it-yourself maintenance
FuseAmpereCircuit
23A/F15Fuel system
24INV W/P10Hybrid system
25IGCT No.120Hybrid system, IGCT No.2, 
IGCT No.3
26FR FOG15Fog light
27FR TAIL10Tail light, rear side marker light
28WA S H20Windshield washer
29HORN10Horn
30H-LP HI20Headlight high beam
31DC/DC140Charging system
32RAD FAN60Electric cooling fans
33LH J/B AM80
S/ROOF, FR P/SEAT LH, TV, A/C,
FUEL OPN, FR WIP, H-LP LVL, 
FR S/HTR LH, A/C W/P
34E/G AM60H-LP CLN, FR CTRL-AM, DEICER,
STB AM
35HEATER50Air conditioning system
36DEFOG50Rear window defogger
37ABS230VSC, ABS
38RH J/B-AM80
AM1, OBD, STOP SW, TI & TE, 
FR P/SEAT RH, STR LOCK, 
SECURITY, ECU-IG R, RH-IG, 
F S/HTR RH, CIG, PWR OUTLET, 
AIR SUS

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4-3. Do-it-yourself maintenance
■Driver’s side instrument panel
FuseAmpereCircuit
1FR WIP30Windshield wipers
2RR-IG7. 5RR-IG1
3LH-IG10
Emergency flashers, seat belt preten-
sioners, headlight cleaners, exhaust
system, rear window defogger, elec-
tric cooling fans, front left door con-
trol system, rear left door control
system
4H-LP LVL7. 5Adaptive front lighting system
5A/C W/P7. 5Air conditioning system
6RAD No.310Audio system
7FR DOOR LH20Front left door control system
8RR DOOR LH20Rear left door control system
9FR S/HTR LH15Seat heaters, seat heaters and venti-
lators
10ECU-IG LH10
VGRS, EPS, electronically con-
trolled brake system, yaw rate & G
sensor, dynamic radar cruise control
system, rear view monitor system,
moon roof

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4-3. Do-it-yourself maintenance
4
Maintenance and care
FuseAmpereCircuit
11PA N E L7. 5
Steering switches, distance control
switch, audio system, glove box light,
switch illumination, cigarette lighter,
shift lever light, touch screen, rear
personal lights
12S/ROOF25
13FUEL OPEN10Fuel lid opener, trunk opener
14LH-B10Anti-theft system
15TRK OPN10Trunk opener
16TV7. 5Touch screen, rear view monitor sys-
tem
17A/C7. 5Air conditioning system
18FR P/SEAT LH30Po w e r s e a t

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5-2. Steps to take in an emergency
Wa r n i n g m e s s a g eDetailsCorrection procedure
The trunk is not fully
closed. flashes and a
buzzer sounds to indi-
cate that trunk is not fully
closed (with the vehicle
having reached a speed
of 3 mph [5 km/h]).
Close the trunk.
(Flashing)
The moon roof is not fully
closed (with the power
switch “OFF” and the
driver’s door opened).
Close the moon roof.
(Flashing)
The parking brake is still
engaged (with the vehicle
having reached a speed
of more than 3 mph [5
km/h]).
Release the parking
brake.
The washer fluid level is
low.Add washer fluid.
The hybrid system has
overheated.Stop and check. 
(  P. 4 7 5 )

5
When trouble arises
469
5-2. Steps to take in an emergency
When the electronic key battery is discharged
Locking and unlocking the doors, unlocking the trunk and key linked functions
DoorsUsing the mechanical key in order
to per
form the following opera -
tions:
Locks all doors
Closes the windows/moon roof
(turn and hold)
Unlocks the door
Turning the key rearward unlocks
the driver's door. Turning the key
once again unlocks the other
doors.
Opens the windows/moon roof
(turn and hold)
Tr u n k
Turn the mechanical key clock-
wise to open.
If the electronic key battery is di scharged, the doors and trunk can be
opened by the mechanical key. The hybrid system can be still started by fol
-
lowing the procedure.

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5-2. Steps to take in an emergency
■To prevent 12 volt battery discharge
●Turn off the headlights and the audio system while the hybrid system is off.
●Turn off any unnecessary electrical components when the vehicle is running at a
low speed for an extended period, such as in heavy traffic, etc.
■When the 12 volt battery is removed or discharged
The hybrid system may not start. ( P. 3 7 2 )
Also, the following systems must be initialized.
●Po w e r w i n d o w s (P. 5 3 )
●Moon roof (P. 5 6)
●Variable gear ratio steering (P. 1 5 1 )
●Tire pressure warning system (P. 3 7 7 )
●Intuitive parking assist (P. 1 5 1)
Maintain the engine speed on th e second vehicle and turn the
power switch to the “IG-ON” mo de, then start the vehicle’s
hybrid system.
Make sure the “READY” light co mes on. If the light does not
come on, contact your Lexus dealer.
Once the vehicle’s hybrid system has started, remove the
jumper cables in the exact reverse or
der in which they were
connected.
Once the hybrid system starts, have the v
ehicle checked at your Lexus
dealer as soon as possible.
STEP5
STEP6
STEP7

498
6-1. Specifications
Tire related termMeaning
Production options
weight
The combined weight of installed regular production
options weighing over 5 lb. (2.3 kg) in excess of the
standard items which they replace, not previously
considered in curb weight or accessory weight,
including heavy duty brakes, ride levelers, roof rack,
heavy duty battery, and special trim
Vehicle capacity weight
(Total load capacity)The rated cargo and luggage load plus 150 lb. (68
kg) times the vehicle's designated seating capacity
Intended outboard side-
wall
(a) The sidewall that contains a whitewall, bears white lettering, or bear s manufacturer, brand,
and/or model name molding that is higher or
deeper than the same molding on the other side-
wall of the tire, or
(b) The outward facing sidewall of asymmetrical tire that has a particular side that must always face
outward when mounted on a vehicle
Occupant distributionDistribution of occupants in a vehicle as specified in
the third column of Table 1
* below
Recommended inflation
pressureCold tire inflation pressure recommended by a man-
ufacturer.
RimA metal support for a tire or a tire and tube assembly
upon which the tire beads are seated
Rim diameter 
(Wheel diameter)Nominal diameter of the bead seat
Rim size designationRim diameter and width
Rim type designationThe industry manufacturer's designation for a rim by
style or code
Rim widthNominal distance between rim flanges

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6-2. Customization
6
Vehicle specifications
*: Vehicles sold outside Canada
ItemFunctionDefault settingCustomizedsetting
Moon roof 
(
P. 5 5 )
Linked door lock opera-
tionONOFF
Linked door key opera-
tionOpen and closeOpen only
Close only
Linked operation of com-
ponents when door key is
used
Slide onlyTilt only
Wireless remote control
linked operationONOFF
Linked operation of com-
ponents when wireless
remote control used
Slide onlyTilt only
Automatic
light control
system 
(
P. 1 2 0 )
Light sensor sensitivityLevel 3Levels 1 to 5
Ti m e e l a p s e d b e f o r e
headlights automatically
turn off after doors are
closed
30 seconds
0 seconds
60 seconds
90 seconds
Daytime running lightONOFF*

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6
Vehicle specifications
6-3. Initialization
Items to initialize
ItemWhen to initializeReference
Pow e r w i n d ow
• After reconnecting or changing the battery
• After changing a fuse
P. 5 3
Moon roofP. 5 6
Variable gear ratio
steeringP. 1 5 1
Intuitive parking assistP. 1 5 1
Engine oil maintenance
data• After changing engine oilP. 3 6 6
Tire pressure warning
system
• When rotating the tires on vehicles differing with front and rear tire infla-
tion pressures.
• When changing the tire inflation pressure by changing traveling speed
or load weight, etc.
• When changing the tire size.
P. 3 7 7
After reconnecting or performing main tenance on the 12 volt battery, the
hybrid system may not start. (
 P. 3 7 2 ) Also, the following items must be
initialized for normal system operation.