Page 702 of 862

701
GS450h_U (OM30D01U)
7When trouble arises
7-1. Essential information Emergency flashers................... 702
If your vehicle has to be stopped in an emergency .... 703 7-2. Steps to take in an emergency
If your vehicle needs to be towed ................................ 704
If you think something is wrong ................. 710
If a warning light turns on or a warning buzzer sounds ........ 711
If a warning message is displayed .................................. 721
If you have a flat tire.................... 749
If the hybrid system will not start................................. 762
If the shift lever cannot be shifted from P ......................764
If the parking brake cannot be released .................................765
If the electronic key does not operate properly ...................... 767
If the 12-volt battery is discharged ............................. 770
If your vehicle overheats .......... 774
If the vehicle becomes stuck ............................................. 778
GS450h_U.book Page 701 Monday, January 23, 2012 10:20 AM
Page 722 of 862
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. Continuing to drive the vehicle may
be dangerous.
Warning messageDetails
Indicates the following: • The brake fluid level is low; or,
• The brake system is malfunctioning.A buzzer also sounds.
(U.S.A.)
(Canada)
GS450h_U.book Page 721 Monday, January 23, 2012 10:20 AM
Page 723 of 862
7227-2. Steps to take in an emergency
GS450h_U (OM30D01U)A buzzer sounds and a warning message is shown on the multi-informa-
tion display. The following warning indicates the possibility of damage to
the vehicle that may lead to an accide
nt. 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 brakeA buzzer also sounds.
Stop the vehicle immediately.
Warning messageDetails
Warning messageDetails
Indicates abnormal engine oil pressureThe warning light may come on if the engine oil
pressure is too low.
Indicates a malfunction in the hybrid system
GS450h_U.book Page 722 Monday, January 23, 2012 10:20 AM
Page 724 of 862
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 abnormally and possibly cause an accident.
Have the vehicle inspected by your Lexus dealer.
Have the vehicle inspected immediately.
Warning messageDetails
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-
temPress 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)
GS450h_U.book Page 723 Monday, January 23, 2012 10:20 AM
Page 729 of 862
7287-2. Steps to take in an emergency
GS450h_U (OM30D01U)A buzzer sounds and a warning message 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.
Warning messageDetailsCorrection 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.
GS450h_U.book Page 728 Monday, January 23, 2012 10:20 AM
Page 732 of 862
7317-2. Steps to take in an emergency
GS450h_U (OM30D01U)
7
When trouble arises
Indicates that the brake
hold system is not avail-
ableThe reason the brake
hold system is not avail-
able may be displayed.• Close the driver’s door.
• Fasten the driver’s seatbelt.
• Close the trunk and hood.
Indicates that the brake
hold system is not avail-
ableThe reason the brake
hold system is not avail-
able may be displayed.• Depress the brakepedal.
• Close the driver’s door.
• Fasten the driver’s seat belt.
Indicates that the parking
brake is set automatically
while the brake hold sys-
tem is holding the brakes
Release the parking
brake.
Warning messageDetailsCorrection procedure
(Flashes)
GS450h_U.book Page 731 Monday, January 23, 2012 10:20 AM
Page 735 of 862
7347-2. Steps to take in an emergency
GS450h_U (OM30D01U)
Warning messageDetailsCorrection procedure
Indicates that intuitive
parking assist sensor is
dirty or covered with ice
Clean the sensor.
Indicates that the radar
sensor is dirty or covered
with ice
Clean the sensor.
Indicates that the radar
cruise control system is
unable to judge vehicle-
to-vehicle distance
•Turn off the snowmode.
• If the windshield wip- ers are on, turn them
off or set them to a
mode other than
AUTO or high speed
wiper operation.
Indicates that your vehi-
cle is nearing the vehicle
ahead (in vehicle-to-vehi-
cle distance mode)
At the same time,
will appear on the
head-up display (the
image flashes).
Slow the vehicle by
applying the brakes.
(If equipped)
(If equipped)
(If equipped)
(If equipped)
GS450h_U.book Page 734 Monday, January 23, 2012 10:20 AM
Page 737 of 862
![Lexus GS450h 2013 Owners Manual 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 con Lexus GS450h 2013 Owners Manual 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 con](/manual-img/36/15351/w960_15351-736.png)
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 continuously.
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 )
Warning messageDetailsCorrection procedure
(If equipped)
(If equipped)
(If equipped)
sec_07-02.fm Page 736 Monday, January 30, 2012 10:37 AM