2007 Lexus GS450h maintenance

417
4-3. Do-it-yourself maintenance
4
Maintenance and care
■Bulbs other than the above
If any of the bulbs listed below has burnt out, have your Lexus dealer
r

eplace it.
● Headlight lo
w beams (high-intensity discharge bulbs)
● F
og lights
●F
ront turn signal lights
●F
ront side marker lights
●Stop
/tail lights
●T
ail lights
●R
ear side marker lights
●High mounted stoplight
● License plate lights
■Condensation build-up on the inside of the lens
Contact your Lexus dealer for more inform ation i
n the following situations. Tempo-
rary condensation build-up on the inside of the headlight lens does not indicate a
ma
lfunction.
●Large drops of water are built up on the inside of the lens.
●Water has built up in side the headlight.
■LED light bulbs
The tail, tail/stop and high mounted stopligh ts co
nsist of a number of LEDs. If any
LEDs burn out, take your vehicle to your Lexus dealer to have the light replaced.
If two or more LEDs in a stoplight burn out, y
our vehicle may not conform to local
laws (SAE).
■High-intensity discharge (HID) headlights
If voltage to the high-intensity discharge bu l
bs is insufficient, the light may not come
on, or may go out temporarily. The high-i ntensity discharge bulbs will come on
when normal power is restored.

418
4-3. Do-it-yourself maintenance
CAUTION
■Replacing light bulbs
●Turn off the headlights. Do not attempt to replace the bulb immediately after turn-
ing off the headlights. 
The bulbs become very hot and may cause burns.
●Do not touch the glass portion of the light bulb with bare hands. Hold the bulb by
the plastic or metal portion. 
If the bulb is scratched or dropped it may blow out or crack.
●Fully install light bulbs and any parts used to secure them. Failing to do so may
result in heat damage, fire, or water ente ring the headlight unit. This may damage
the headlights or cause condensation to build up on the lens.
●Do not attempt to repair or disassemble lig ht bulbs, connectors, electric circuits
or component parts. 
Doing so may result in serious injury due to electric shock.
■High-intensity discharge (HID) headlights
●Contact your Lexus dealer before replac ing high-intensity discharge headlights
(including light bulbs).
●Do not touch the high voltage socket while the headlights are turned on.
20000V is momentarily generated and ma y cause severe injury by electric
shock.
■To prevent damage or fire
Make sure bulbs are fully seated and locked.

5
When trouble arises
445
5-2. Steps to take in an emergency
Wa r n i n g m e s s a g eDetailsCorrection procedure
The engine oil level is low.Check the engine oil level,
and add if necessary.
(U.S.A. only)
The engine oil is sched-
uled to be changed.
Check the engine oil, and
change if necessary.
Comes on approximately
4500 miles (7200 km)
after the engine oil is
changed. (The indicator
will not work properly
unless the oil mainte-
nance data has been
reset).
(U.S.A. only)
The engine oil should be
changed.
Check and change the
engine oil.
Comes on approximately
5000 miles (8000 km)
after the engine oil is
changed (and the oil
maintenance data has
been reset).

448
5-2. Steps to take in an emergency
Wa r n i n g m e s s a g eDetailsCorrection procedure
(Flashing)
The transmission is out of
“P” when attempting to
start the hybrid system.Shift the shift lever to “P”
before pressing the power
switch.
■After changing the engine oil (U.S.A. only)
Make sure to reset the oil maintenance data. (P.
3 6 6 )
■Warning light display in radar cruise mode
In the following cases, the warning light may
not be displayed even if vehicle-to-
vehicle distance closes.
●When your vehicle and the vehicle ahead are traveling at the same speed or the
vehicle ahead is traveling more quickly than your vehicle
●When the vehicle ahead is traveling at a very low speed
●Immediately after cruise control speed is set
●At the instant the accelerator pedal is depressed

5
When trouble arises
449
5-2. Steps to take in an emergency
CAUTION
■Maintenance of the tires
Each tire, including the spare (if provided), should be checked monthly when cold
and inflated to the inflation pressure re commended by the vehicle manufacturer on
the vehicle placard or tire inflation pressure label (tire and load information label).
(If your vehicle has tires of a different size than the size indicated on the vehicle
placard or tire inflation pressure label [tire and load information label], you should
determine the proper tire inflation pressure for those tires.)
As an added safety feature, your vehicle has been equipped with a tire pressure
monitoring system (TPMS-tire pressure warning system) that illuminates a low tire
pressure telltale (tire pressure warning light) when one or more of your tires is sig-
nificantly under-inflated. Accordingly, when the low tire pressure telltale (tire pres-
sure warning light) illuminates, you should stop and check your tires as soon as
possible, and inflate them to the proper pressure. Driving on a significantly under-
inflated tire causes the tire to overheat an d can lead to tire failure. Under-inflation
also reduces fuel efficiency and tire tread life, and may affect the vehicle's handling
and stopping ability.
Please note that the TPMS (tire pressure warning system) is not a substitute for
proper tire maintenance, and it is the driver's responsibility to maintain correct tire
pressure, even if under-inflation has not reached the level to trigger illumination of
the TPMS low tire pressure telltale (tire pressure warning light).
Your vehicle has also been equipped with a TPMS (tire pressure warning system)
malfunction indicator to indicate when th e system is not operating properly. The
TPMS (tire pressure warning system) malf unction indicator is combined with the
low tire pressure telltale (tire pressure warning light). When the system detects a
malfunction, the telltale will flash for approximately one minute and then remain
continuously illuminated. This sequence will continue upon subsequent vehicle
start-ups as long as the malfunction exists . When the malfunction indicator is illumi-
nated, the system may not be able to detect or signal low tire pressure as intended.
TPMS (tire pressure warning system) malfunction may occur for a variety of rea-
sons, including the installation of replacem ent or alternate tires or wheels on the
vehicle that prevent the TPMS (tire pressure warning system) from functioning
properly. Always check the TPMS (tire pressure warning system) malfunction tell-
tale after replacing one or more tires or wheels on your vehicle to ensure that the
replacement and alternate tires and wheels allow the TPMS (tire pressure warning
system) to continue to function properly.

Vehicle specification6
479
6-1. Specifications ......................... 480Maintenance data .................... 480
Fuel information......................... 489
Tire information .......................... 492
6-2. Customization ........................ 500 Customizable features .......... 500
6-3. Initialization ............................. 505 Items to initialize ....................... 505

480
6-1. Specifications
Maintenance data
Dimensions and weight
*: Unladen vehicle
Overall length189.9 in. (4825 mm)
Overall width71.6 in. (1820 mm)
Overall height *56.1 in. (1425 mm)
Wheelbase112.2 in. (2850 mm)
Tr e a dFront60.4 in. (1535 mm)
Rear60.6 in. (1540 mm)
Vehicle capacity weight
(Occupants + luggage)815 lb. (370 kg)

505
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.