Page 748 of 890

747
GS450h_OM_OM30D52U_(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. 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)
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Page 749 of 890
7487-2. Steps to take in an emergency
GS450h_OM_OM30D52U_(U)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
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Page 750 of 890
7497-2. Steps to take in an emergency
GS450h_OM_OM30D52U_(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 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 All assist-sensors flash.
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)
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Page 751 of 890
7507-2. Steps to take in an emergency
GS450h_OM_OM30D52U_(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
Warning messageDetails
(If equipped)
(If equipped)
(Flashes)
(If equipped)
(If equipped)
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Page 752 of 890
7517-2. Steps to take in an emergency
GS450h_OM_OM30D52U_(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
Warning messageDetails
(If equipped)
(U.S.A.)
(Canada)
(Flashes)
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Page 753 of 890
7527-2. Steps to take in an emergency
GS450h_OM_OM30D52U_(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
Warning messageDetails
(Flashes)
(U.S.A.)
(Flashes)
(Canada)
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Page 754 of 890
7537-2. Steps to take in an emergency
GS450h_OM_OM30D52U_(U)
7
When trouble arises
Indicates a malfunction in the Blind Spot Monitor
Indicates a malfunction in the smart access system
with push-button start
Indicates that the cooling performance of the hybrid
battery (traction battery) has dropped
Warning messageDetails
(If equipped)
(Flashes)
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Page 755 of 890
7547-2. Steps to take in an emergency
GS450h_OM_OM30D52U_(U)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.
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