engine Lexus GS350 2013 Owner's Manual

685
GS350_U (OM30C34U)
7
When trouble arises
7-2. Steps to take in an emergency
Fuel pump shut off system
Follow the procedure below to restart the engine after the system is acti-
vated. Turn the engine switch to ACCESSORY mode or turn it off.
Restart the engine.
To minimize the risk of fuel leakage when the engine stalls or when an
airbag inflates upon coll ision, the fuel pump shut off system stops the
supply of fuel to the engine.
NOTICE
■Before starting the engine
Inspect the ground under the vehicle.
If you find that fuel has leaked onto the ground, the fuel system has been damaged
and is in need of repair. Do not restart the engine.
1
2

6877-2. Steps to take in an emergency
GS350_U (OM30C34U)
7
When trouble arises
The following warning indicates the possibility of damage to the vehicle
that may lead to an accident. Immediately stop the vehicle in a safe place
and contact your Lexus dealer.
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 immediately.
Stop the vehicle immediately.
Warning lightWarning light/Details
Charging system warning lightIndicates a malfunction in the vehicle’s charging system
Have the vehicle inspected by your Lexus dealer immediately.
Warning lightWarning light/Details
(U.S.A.)
(Canada)
Malfunction indicator lamp Indicates a malfunction in:
• The electronic engine control system;
• The electronic throttle control system; or
• The electronic automatic transmission control system
SRS warning lightIndicates a malfunction in:
• The SRS airbag system;
• The front passenger occupant classification system; or
• The seat belt pretensioner system
(U.S.A.)
(Canada)
ABS warning light Indicates a malfunction in:
•The ABS; or
• The brake assist system
Electric power steering system warning lightIndicates a malfunction in the EPS (Electric Power Steering)
system

6917-2. Steps to take in an emergency
GS350_U (OM30C34U)
7
When trouble arises
*1: Open door warning buzzer:→ P. 7 0 4
*2: Driver’s seat belt buzzer:
The driver’s seat belt buzzer sounds to alert the driver that his or her seat belt is
not fastened. Once the engine switch is turned to IGNITION ON mode, the
buzzer sounds for 6 seconds. If the vehicle reaches a speed of 12 mph (20 km/h),
the buzzer sounds once. If the seat belt is still unfastened after 30 seconds, the
buzzer will sound intermittently for 10 seconds. Then, if the seat belt is still unfas-
tened, the buzzer will sound in a different tone for 20 more seconds.
Front passenger’s seat belt buzzer:
The front passenger’s seat belt buzzer sounds to alert the front passenger that his
or her seat belt is not fastened. The buzzer sounds once if the vehicle reaches a
speed of 12 mph (20 km/h). If the seat belt is still unfastened after 30 seconds,
the buzzer will sound intermittently for 10 seconds. Then, if the seat belt is still
unfastened, the buzzer will sound in a different tone for 20 more seconds.

6927-2. Steps to take in an emergency
GS350_U (OM30C34U)
■SRS warning light
This warning light system monitors the airbag sensor assembly, front impact sensors,
side impact sensors (front door), side impact sensors (front), side impact sensors
(rear), driver’s seat position sensor, driver’s seat belt buckle switch, front passenger
occupant classification system, “AIR BAG ON” indicator light, “AIR BAG OFF” indi-
cator light, front passenger’s seat belt buckle switch, seat belt pretensioner assem-
blies, inflators, interconnecting wiring and power sources. (→P. 3 8 )
■Front passenger detection sensor, seat belt reminder and warning buzzer
If luggage is placed on the front passenger seat, the front passenger detection sen-
sor may cause the warning light to flash and the warning buzzer to sound even if a
passenger is not sitting in the seat.
■If the malfunction indicator lamp comes on while driving
First check the following:
●Is the fuel tank empty?
If it is, fill the fuel tank immediately.
●Is the fuel tank cap loose?
If it is, tighten it securely.
The light will go off after several driving trips.
If the light does not go off even after several trips, contact your Lexus dealer as soon
as possible.
■Changing the engine oil (U.S.A. only)
Make sure to reset the oil change system. ( →P. 602)
■When the tire pressure warning light comes on
Check the tire inflation pressure and adjust to the appropriate level. Pushing the tire
pressure warning reset switch will not turn off the tire pressure warning light.

6937-2. Steps to take in an emergency
GS350_U (OM30C34U)
7
When trouble arises
■The tire pressure warning light may come on due to natural causes
The tire pressure warning light may come on due to natural causes such as natural
air leaks and tire inflation pressure changes caused by temperature. In this case,
adjusting the tire inflation pressure will turn off the warning light (after a few minutes).
■When a tire is replaced with a spare tire
The compact spare tire is not equipped with a tire pressure warning valve and trans-
mitter. If a tire goes flat, the tire pressure warning light will not turn off even though
the flat tire has been replaced with the spare tire.
■Conditions that the tire pressure warning system may not function properly
→P. 6 3 5
■If the tire pressure warning light freque ntly comes on after blinking for 1 minute
If the tire pressure warning light frequently comes on after blinking for 1 minute when
the engine switch is turned to IGNITION ON mode, have it checked by your Lexus
dealer.
■Warning buzzer
In some cases, the buzzer may not be heard because of noisy place or an audio
sound.

6987-2. Steps to take in an emergency
GS350_U (OM30C34U)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.
Stop the vehicle immediately.
Warning messageDetails
Indicates abnormal engine oil pressure The warning light may come on if the engine oil
pressure is too low.

7057-2. Steps to take in an emergency
GS350_U (OM30C34U)
7
When trouble arises
Indicates that the trunk is
not fully closedIf the vehicle reaches a
speed of 3 mph (5
km/h), flashes
and a buzzer sounds
to indicate that the
trunk is not yet fully
closed.
Close the trunk.
Indicates that the win-
dows are not fully closed
(with the engine switch
off, and the driver’s door
open)
Close all the windows.
Indicates that the moon
roof is not fully closed
(with the engine switch
off, and the driver’s door
open)
Close the moon roof.
Indicates that the win-
dows and the moon roof
are not fully closed (with
the engine switch off, and
the driver’s door open)
Close all the windows
and the moon roof.
Warning messageDetailsCorrection procedure
(Flashes)
(Flashes)
(Flashes)

7067-2. Steps to take in an emergency
GS350_U (OM30C34U)
Indicates that the parking
brake is still engagedIf the vehicle reaches a
speed of 3 mph
(5 km/h),
flashes and a buzzer
sounds to indicate that
the parking brake is
still engaged.
Release the parking
brake.
Indicates that the parking
brake system has over-
heatedWait until the system
cools down.
Indicates that shift range 1
has been selected with
the shift lever in M when
driving on slippery road
surfaces.The range will not be
downshifted and
remain 2.
Drive with the shift range
higher than 2.
Indicates that engine oil
level is lowCheck the level of engine
oil, and add if necessary.
Warning messageDetailsCorrection procedure
(Flashes)
(U.S.A.)
(Flashes)
(Canada)
(Flashes)

7107-2. Steps to take in an emergency
GS350_U (OM30C34U)
Indicates that remaining
fuel is approximately 2.8
gal. (10.5 L, 2.3 Imp.gal.)
or less
Refuel the vehicle.
Indicates that the engine
switch is turned off or
turned to ACCESSORY
mode and the driver’s
door is opened while the
lights are turned on
Turn the lights off.
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.
Warning messageDetailsCorrection procedure
(Flashes)
(Flashes)

7137-2. Steps to take in an emergency
GS350_U (OM30C34U)
7
When trouble arises
Warning messageDetailsCorrection procedure
Indicates that all mainte-
nance is required to cor-
respond to the driven
distance on the mainte-
nance schedule
*.Perform the necessary
maintenance. Please
reset the maintenance
data after the mainte-
nance is performed
(→ P. 602)
Comes on approxi-
mately 5000 miles
(8000 km) after the
maintenance data has
been reset.
(The indicator will not
work properly unless the
maintenance data 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 engine
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)