2013 Lexus GS450h warning

7207-2. Steps to take in an emergency
GS450h_U (OM30D01U)
CAUTION
TPMS (tire pressure warning system) malfunctions may occur for a variety of rea-
sons, including the installation of replacement 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 or alternate tires and wheels allow the TPMS (tire pressure warning
system) to continue to function properly.
NOTICE
■Precaution when installing a different tire
When differently constructed tires or tires of different makers, models or tread pat-
terns are installed, the tire pressure warning system may not operate properly.

721
GS450h_U (OM30D01U)
7
When trouble arises
7-2. Steps to take in an emergency
If a warning message is displayed
Master warning light
The master warning light also comes
on or flashes in order to indicate that a
message is currently being displayed
on the multi-information display.
Multi-information display
If any of the warning light comes on again after the following actions have
been performed, contact your Lexus dealer.
The following warning indicates a possible problem in the brake system.
Immediately stop the vehicle in a safe place and contact your Lexus
dealer.
If a warning is shown on the multi- information display, stay calm and
perform the following actions:
1
2
Stop the vehicle immediately. Cont inuing to drive the vehicle may
be dangerous.
Wa r n i n g m e s s a g eDetails
Indicates the following: • The brake fluid level is low; or,
• The brake system is malfunctioning. A buzzer also sounds.
(U.S.A.)
(Canada)

7227-2. Steps to take in an emergency
GS450h_U (OM30D01U)A buzzer sounds and a warning messa
ge is shown on the multi-informa-
tion display. The following warning in dicates the possibility 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.
Indicates a malfunction in: • The regenerative brake system;
• The electronically controlled brake system; or
• The electric parking brake A buzzer also sounds.
Stop the vehicl e immediately.
Wa r n i n g m e s s a g eDetails
Wa r n i n g m e s s a g eDetails
Indicates abnormal engine oil pressure
The warning light may come on if the engine oil
pressure is too low.
Indicates a malfunction in the hybrid system

7237-2. Steps to take in an emergency
GS450h_U (OM30D01U)
7
When trouble arises
A buzzer sounds and a warning message is shown on the multi-informa-
tion display. Failure to investigate the cause of the following warnings may
lead to the system operating abnorma lly and possibly cause an accident.
Have the vehicle inspected by your Lexus dealer.
Have the vehicle inspected immediately.
Wa r n i n g m e s s a g eDetails
Indicates a malfunction in the pre-collision system
Indicates a malfunction in the intuitive parking assist The malfunctioning assist-sensor is flashing.
Indicates a malfunction in the dynamic radar cruise
control system (if equipped) or the cruise control sys-
tem Press the “ON/OFF” button once to deactivate the
system, and then press the button again to reacti-
vate the system.
(Flashes)
(If equipped)
(If equipped)

7287-2. Steps to take in an emergency
GS450h_U (OM30D01U)A buzzer sounds and a warning messa
ge is shown on the multi-informa-
tion display. After taking the spec ified 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 one or
more of the doors is not
fully closed
The system also indi-
cates which doors are
not fully closed.
If the vehicle reaches a
speed of 3 mph (5
km/h), flashes
and a buzzer sounds
to indicate that the
door(s) are not yet
fully closed.
Make sure that all the
doors are closed.
Indicates that the hood is
not fully closedIf the vehicle reaches a
speed of 3 mph (5
km/h), flashes
and a buzzer sounds
to indicate that the
hood is not yet fully
closed.
Close the hood.

7367-2. Steps to take in an emergency
GS450h_U (OM30D01U)
Alerts the driver that the
vehicle is out of the lanes
(while the LKA [Lane-
Keeping Assist] system is
operating)The warning buzzer
sounds cont inuously.
The lane markings and/
or the steering wheel
marking flash.
At the same time,
will appear
on the head-up dis-
play (part of the image
flashes).
Check around the vehi-
cle and back to inside of
the lane markings.
Indicates that the LKA
(Lane-Keeping Assist)
system detects no-
handed driving (while the
lane keeping assist func-
tion is operating) The warning buzzer
sounds twice.
Grip the steering wheel
firmly.
Indicates that the Blind
Spot Monitor sensors or
the surrounding area on
the bumper is dirty or
covered with ice
Clean the sensor and its
surrounding area on the
bumper.
Indicates that the hybrid
system has overheatedThis message may be
displayed when driving
under severe operating
conditions. (For exam-
ple, when driving up a
long steep hill.)
Stop and check.
( P. 7 74 )
Wa r n i n g m e s s a g eDetailsCorrection procedure
(If equipped)
(If equipped)
(If equipped)

7377-2. Steps to take in an emergency
GS450h_U (OM30D01U)
7
When trouble arises
Indicates that the hybrid
system output is limited
because the engine oil is
overheatedDrive the vehicle at a safe
speed until the warning
message disappears.
Indicates that the vehicle
is unable to drive over 65
mph (110 km/h) until the
transmission warms up
Wait until the transmis-
sion warms up.
Indicates that remaining
fuel is approximately 2.6
gal. (10.0 L, 2.2 Imp.gal.)
or less
Refuel the vehicle.
Indicates that the power
switch is turned off or
turned to ACCESSORY
mode and the driver’s
door is opened while the
lights are turned on
Tu r n t h e l i g h t s o f f .
Indicates that the driver’s
door was opened with the
shift position in any posi-
tion other than P
Shift the shift position to P.
Wa r n i n g m e s s a g eDetailsCorrection procedure
(Flashes)
(Flashes)

7387-2. Steps to take in an emergency
GS450h_U (OM30D01U)
■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
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