display Lexus GS450h 2007 Hybrid system / LEXUS 2007 GS450H THROUGH JUNE 2006 PROD. OWNER'S MANUAL (OM30727U)

5
When trouble arises
433
5-2. Steps to take in an emergency
*2: Open door warning buzzer:
P. 4 4 3
*3: Driver's and front passenger’s seat belt reminder buzzer:
The driver’s and front passenger’s seat belts reminder sounds to alert the driver
and front passenger that his or her seat belt is not fastened. The buzzer sounds
intermittently for 10 seconds after the ve hicle has reached a speed of at lest 12
mph (20 km/h). Then, if the seat belt is still unfastened, the buzzer will sound in
a different tone for 20 more seconds.
Warning lightWarning light/DetailsCorrection procedure
Driver’s seat belt reminder
light (warning buzzer)
*3
Warns the driver to fasten
his/her seat belt.Fasten the seat belt.
Front passenger’s seat belt
reminder light
(warning buzzer)
*3
Warns the front passenger to
fasten his/her seat belt.
Fasten the seat belt.
Tire pressure warning light
When the light comes on:
Low tire inflation pressure.Adjust the tire inflation pres-
sure.
When the light stays on after
blinking for 1 minute:
Malfunction in the tire pres-
sure warning system.
Have the system checked by
your Lexus dealer.
Master warning light
A buzzer sounds and the
warning light comes on and
flashes to indicate that the
master warning system has
detected a malfunction.
Take appropriate action in
accordance with the message
displayed on the multi-infor-
mation display.

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5-2. Steps to take in an emergency
If a warning message is displayed
If a warning is shown on the multi-information display, stay calm and per-
form the following actions:
Multi-information display
Master warning light
The master warning light also
comes on or flashes in order to
indicate that a message is cur -
rently being displayed on the
multi-information display
.
If any of the warning light turns on again after pe rforming the following
actions, contact your Lexus dealer.

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When trouble arises
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5-2. Steps to take in an emergency
Stop the vehicle immediately.
A buzzer sounds and a warning message is shown on the multi-informa -
tion display. The following warnings indicate the pos
sibility of damage to
the vehicle that may lead to an acci dent. Immediately stop the vehicle in a
safe place and contact your Lexus dealer.
Wa r n i n g m e s s a g eDetails
Malfunction in the hybrid system.
(Flashing)
Abnormal engine oil pressure.
The warning light may turn on if the engine oil pres-
sure is too low.

438
5-2. Steps to take in an emergency
Have the vehicle inspected by your Lexus dealer immediately.
A buzzer sounds and a warning messa ge is shown on the multi-informa-
tion display. Failing to investigate the cause of the follo
wing warnings may
lead to the system operating abnormally and possibly cause an accident.
Have the vehicle inspected by your Lexus dealer immediately.
Wa r n i n g m e s s a g eDetails
Malfunction in the automatic headlight leveling sys-
tem.
Malfunction in the rear lights system.
Malfunction in the tire pressure warning system.
The tire pressure warning light will blink for 1 minute
and then stay on.

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When trouble arises
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5-2. Steps to take in an emergency
Wa r n i n g m e s s a g eDetails
(Flashing)
Malfunction in the steering lock system.
(If equipped)
Malfunction in the active stabilizer suspension sys-
tem.

(If equipped)Malfunction in the PCS.
(If equipped)
Intuitive parking assist malfunction. The malfunctioning sensor is shown flashing on the
display. (The illustration shows malfunctioning left
front sensor.)

442
5-2. Steps to take in an emergency
Have the vehicle inspected by your Lexus dealer immediately.
Failing to investigate the cause of th e following warning may lead to the
system operating abnormally and possibly cause an accident. Have the
vehicle inspected by your Lexus dealer immediately.
*: Electronically Controlled Brake System
Wa r n i n g m e s s a g eDetails
Malfunction in the TRAC, VSC or hill-start assist con-
trol system.
In some cases, only “CHECK VSC” or “CHECK
ECB
*” is displayed.
(U.S.A)
(Canada)
Malfunction in the ABS or BA.In some cases, only “CHECK VSC” or “CHECK
ECB
*” is displayed.
Malfunction in the VGRS
(Steering guide symbol
and arrows are flashing)
The steering sensor cable is broken and signals can-
not be received.

5
When trouble arises
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5-2. Steps to take in an emergency
Have the malfunction repaired immediately.
A buzzer sounds and a warning message is shown on the multi-informa -
tion display. After taking the spec ified steps to corr
ect the suspected
problem, check that the warning message turns off.
Wa r n i n g m e s s a g eDetailsCorrection procedure
One or more of the doors
is not fully closed.
The system also indi-
cates which doors are
not fully closed.
flashes and a
buzzer sounds to indi-
cate that one or more of
the doors is not fully
closed (with the vehicle
having reached a speed
of 3 mph [5 km/h]).
Make sure that all of the
doors are closed.
The hood is not fully
closed.
flashes and a
buzzer sounds to indi-
cate that hood is not fully
closed (with the vehicle
having reached a speed
of 3 mph [5 km/h]).
Close the hood.

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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
(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

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5-2. Steps to take in an emergency
Messages displayed when refueling
The following messages are displayed after the fuel lid opener is pressed.
If the messages do not change or are displayed continuously, have the
vehicle checked by your Lexus dealer.
MessageDetails
Preparing the vehicle for refueling.
Wait a moment.
You may commence refueling.
Finish refueling within 30 minutes.
Close the fuel lid.

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When trouble arises
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5-2. Steps to take in an emergency
Other messages
If the following message is displayed, take appropriate action and confirm
that the message has disappeared.
MessageDetails
(Flashing)
The driver’s door is opened when the transmission is
out of “P” with the hybrid system on.Shift the shift lever to “P”.
(If equipped)
Calibrate the neutral position of the steering wheel.
( P. 151)