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

5117-2. Steps to take in an emergency
GS450h_OM_OM30F70U_(U)
7
When trouble arises
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 pressu re 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 [t ire 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 wa rning 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 and 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 re ached 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) malfunction 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.

5127-2. Steps to take in an emergency
GS450h_OM_OM30F70U_(U)
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
■To ensure the tire pressure warning system operates properly
Do not install tires with di fferent specifications or markers, as the tire pressure
warning system may not operate properly.

513
GS450h_OM_OM30F70U_(U)
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)

5147-2. Steps to take in an emergency
GS450h_OM_OM30F70U_(U)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 brakeA 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

5157-2. Steps to take in an emergency
GS450h_OM_OM30F70U_(U)
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 All assist-sensors flash.
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)

5167-2. Steps to take in an emergency
GS450h_OM_OM30F70U_(U)
Indicates a malfunction in the dynamic radar cruise
control with full-speed rangeDepress the brake pedal.
Indicates a malfunction in the LKA (Lane-Keeping
Assist)
Indicates a malfunction in the LED headlight system
Indicates a malfunction in the automatic headlight lev-
eling system
Wa r n i n g m e s s a g eDetails
(If equipped)
(If equipped)
(Flashes)
(If equipped)
(If equipped)

5177-2. Steps to take in an emergency
GS450h_OM_OM30F70U_(U)
7
When trouble arises
Indicates a malfunction in the adaptive front-lighting
system
Indicates a malfunction in:
• The SRS airbag system;
• The front passenger occupant classification system;or,
• The seat belt pretensioner system
Indicates a malfunction in:
•The ABS; or,
• The brake assist system
Indicates a malfunction in the brake hold system
Wa r n i n g m e s s a g eDetails
(If equipped)
(U.S.A.)
(Canada)
(Flashes)

5187-2. Steps to take in an emergency
GS450h_OM_OM30F70U_(U)
Indicates a malfunction in the brake hold systemDepress the brake pedal.
Indicates a malfunction in the parking brake system
Indicates a malfunction in the parking brake system
Indicates a malfunction in the EPS (Electric Power
Steering) system
Wa r n i n g m e s s a g eDetails
(Flashes)
(U.S.A.)
(Flashes)
(Canada)

5197-2. Steps to take in an emergency
GS450h_OM_OM30F70U_(U)
7
When trouble arises
(If equipped)
Indicates a malfunction in the VGRS
(If equipped)
Indicates a malfunction in the DRS
Indicates a malfunction in the Blind Spot Monitor
Indicates a malfunction in the smart access system
with push-button start
Wa r n i n g m e s s a g eDetails
(If equipped)
(Flashes)

5207-2. Steps to take in an emergency
GS450h_OM_OM30F70U_(U)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.