2015 Lexus GS450h Opening, closing and locking the doors and trunk / LEXUS 2015 GS450H FROM MAR. 2015 PROD. OWNERS MANUAL (OM30F70U)

5297-2. Steps to take in an emergency
GS450h_OM_OM30F70U_(U)
7
When trouble arises
■Warning message in radar cruise mode (if equipped)
In the following cases, the warning message may not be displayed even if vehicle-to-
vehicle distance decreases:
●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
■The LKA (Lane-Keeping Assist) lane departure warning function (if equipped)
In the following cases, the warning message will not be displayed even if a lane line is
crossed.
●When the vehicle speed deviates from the operating range of the LKA system
functions
●When the lane lines cannot be recognized
●When the steering wheel is turned as far as necessary to cause the vehicle to
change lanes
■Open door warning message
The open door warning message continues to display until a door or the trunk is fully
closed, even if the power switch is turned off. However, approximately 20 minutes
after a door or the trunk is not fully closed, the 12-volt battery-saving function oper-
ates and the display turns off even though a door or the trunk is not fully closed.

5307-2. Steps to take in an emergency
GS450h_OM_OM30F70U_(U)A warning message is shown on the mu
lti-information display. After taking
the specified steps to correct the suspected problem, check that the
warning message goes off.
Follow the correction procedures.
Wa r n i n g m e s s a g eDetailsCorrection procedure
Indicates that the brake
hold system is not hold
the vehicle when the
vehicle is on a slippery
road
Use the brake hold sys-
tem when it becomes
available.
Indicates that the washer
fluid level is lowAdd washer fluid.
Indicates that all mainte-
nance according to the
driven distance on the
maintenance schedule
*
should be performed
soon.If necessary, perform
maintenance.
Comes on approxi-
mately 4500 miles
(7200 km) after the mes-
sage has been reset.
(U.S.A. only)

5317-2. Steps to take in an emergency
GS450h_OM_OM30F70U_(U)
7
When trouble arises
Wa r n i n g m e s s a g eDetailsCorrection procedure
Indicates that all mainte-
nance is required to cor-
respond to the driven
distance on the mainte-
nance schedule
*.Pe r f o r m t h e n e c e s s a r y
maintenance. Please
reset the message after
the maintenance is per-
formed
( P. 4 1 6 )
Comes on approxi-
mately 5000 miles
(8000 km) after the
message has been reset.
(The indicator will not
work properly unless the
message has been reset.)
Indicates that the tire
inflation pressure is lowCheck the tire inflation
pressure, and adjust to
the appropriate level.
Indicates a malfunction in
the tire pressure warning
system
Stop the vehicle in a safe
place and turn the power
switch off then on again.
If the tire pressure
warning indicator
flashes for 1 minute
then illuminates, there
is a malfunction in the
system. Have the vehi-
cle inspected at your
Lexus dealer.
(U.S.A. only)
(If equipped)
(If equipped)

5327-2. Steps to take in an emergency
GS450h_OM_OM30F70U_(U)
*: Refer to the separate “Scheduled Maintenance” or “Owner’s Manual Supple-ment” for the maintenance interval applicable to your vehicle.
Wa r n i n g m e s s a g eDetailsCorrection procedure
Indicates that the tire
position information can-
not be recognized
Drive for a short while
and check if the display
updates. If the radio wave condi-
tions improve, the dis-
play may return to
normal. If the tire pres-
sure is still not dis-
played after driving for
several minutes, stop
the vehicle in a safe
place, turn the power
switch off then on
again, and start driving.
If the tire pressure is still
not displayed even
after repeating this sev-
eral times, have the
vehicle inspected at
your Lexus dealer.
Indicates that the pre-col-
lision system is not cur-
rently functional because
the grille cover or the
sensor is dirtyThis message also
appears when the pre-
collision system is not
functional due to over-
heating.
• Check the grille coverand the sensor and
clean them if they are
dirty.
• In case of overheating, the system will become
functional once the sys-
tem cools down.
(If equipped)
(Flashes)
(If equipped)

5337-2. Steps to take in an emergency
GS450h_OM_OM30F70U_(U)
7
When trouble arises
Carrying out the corresponding action turns the messages off.
*: For the EV drive mode operating conditions: P. 2 0 0
Other displayed messages
Displayed messageDetailsCorrection procedure
Maintenance of the
hybrid system (traction
battery) cooling compo-
nent is required
The filter may be
clogged, the air vent
may be blocked or
there may be a gap in
the duct.
Have maintenance per-
formed on the hybrid sys-
tem (traction battery)
cooling component at
your Lexus dealer.
Indicates that the EV
drive mode is not avail-
able
*
The reason the EV
drive mode is not avail-
able (the vehicle is
idling, battery charge is
low, speed is higher
than the EV drive
mode operating speed
range, accelerator
pedal is depressed too
much) may be dis-
played.
Use the EV drive mode
when it becomes avail-
able.
Indicates that the EV
drive mode has been
automatically canceled
*
The reason the EV
drive mode is not avail-
able (the battery
charge is low, speed is
higher than the EV
drive mode operating
speed range, accelera-
tor pedal is depressed
too much) may be dis-
played.
Drive the vehicle for a
while.

5347-2. Steps to take in an emergency
GS450h_OM_OM30F70U_(U)After taking the specified steps to correct the suspected
problem, check
that the warning message and light go off.
Have the malfunction repaired immediately.
Interior buzzerExterior
buzzerWa r n i n g m e s s a g eDetailsCorrection procedure
Once
The electronic key
is not detected
when an attempt is
made to start the
hybrid system.Start the
hybrid sys-
tem with the
electronic
key present.
Once3
times
The electronic key
was carried out-
side the vehicle and
a door other than
the driver’s door
was opened and
closed while the
power switch was in
a mode other than
off.
Bring the
electronic
key back
into the
vehicle.
The driver’s door
was opened and
closed while the
electronic key was
not in the vehicle,
the shift lever was in
P and the power
switch was not
turned off.Tu r n t h e
power
switch off or
bring the
electronic
key back
into the
vehicle.
(Flashes)
(Flashes)

5357-2. Steps to take in an emergency
GS450h_OM_OM30F70U_(U)
7
When trouble arises
InteriorbuzzerExterior
buzzerWa r n i n g m e s s a g eDetailsCorrection procedure
OnceCon-
tinuous
An attempt was
made to exit the
vehicle with the
electronic key and
lock the doors with-
out first turning the
power switch off
when the shift lever
was in P.
Tu r n t h e
power
switch off
and lock the
doors again.
9
times
An attempt was
made to drive when
the regular key was
not inside the vehi-
cle.Confirm
that the
electronic
key is inside
the vehicle.
Con-
tinuous
The driver’s door
was opened when
the shift lever was
not in P and the
power switch was
not turned off.
Shift the
shift lever to
P.
(Displayed alternately)
(Flashes)
(Flashes)
(Flashes)

5367-2. Steps to take in an emergency
GS450h_OM_OM30F70U_(U)
InteriorbuzzerExterior
buzzerWa r n i n g m e s s a g eDetailsCorrection procedure
Con-
tinuousCon-
tinuous
The driver’s door
was opened and
closed while the
electronic key was
not in the vehicle,
the shift lever was
not in P and the
power switch was
not turned off.• Shift the shift lever
to P.
•Bring the elec-
tronic key
back into
the vehi-
cle.
OnceCon-
tinuous
• An attempt wasmade to lock the
doors using the
smart access sys-
tem with push-
button start while
the electronic
key was still
inside the vehicle.
• An attempt was made to lock
either front door
by opening a
door and putting
the inside lock
button into the
lock position,
then closing the
door with the
electronic key
still inside the
vehicle.
Retrieve the
electronic
key from the
vehicle and
lock the
doors again.
(Displayed alternately)
(Flashes)
(Flashes)