2013 Lexus GS350 stop start

6957-2. Steps to take in an emergency
GS350_U (OM30C34U)
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.

7147-2. Steps to take in an emergency
GS350_U (OM30C34U)
*: Refer to the separate “Scheduled Maintenance” or “Owner’s Manual Supple-ment” for the maintenance interval applicable to your vehicle.
Wa r n i n g m e s s a g eDetailsCorrection procedure
Indicates that the tire
position information can-
not be recognized
Drive for a short while
and check if the display
updates. If the radio wave condi-
tions improve, the dis-
play may return to
normal. If the tire pres-
sure is still not dis-
played after driving for
several minutes, stop
the vehicle in a safe
place, turn the engine
switch off then on
again, and start driving.
If the tire pressure is still
not displayed even
after repeating this sev-
eral times, have the
vehicle inspected at
your Lexus dealer.
Indicates that the pre-col-
lision system is not cur-
rently functional because
the grille cover or the
sensor is dirtyThis message also
appears when the pre-
collision system is not
functional due to over-
heating.
Check the grille cover
and the sensor and clean
them if they are dirty. In case of overheating,
the system will become
functional once the sys-
tem cools down.
(If equipped)
(Flashes)
(If equipped)

7427-2. Steps to take in an emergency
GS350_U (OM30C34U)
■Stopping the engine
Shift the shift lever to P and press the engine switch as you normally do when stop-
ping the engine.
■Replacing the key battery
As the above procedure is a temporary measure, it is recommended that the elec-
tronic key battery be replaced immediately when the battery is depleted. ( P. 6 4 6 )
■Changing engine switch modes
Release the brake pedal and press the engine switch in step above.
The engine does not start and modes will be changed each time the switch is
pressed.( P. 1 7 2 )
■When the electronic key does not work properly
●Make sure that the smart access system with push-button start has not been deac-
tivated in the customization setting. If it is off, turn the function on.
(Customizable features  P. 777)
●Check if battery-saving mode is set. If it is set, cancel the function. ( P. 1 0 7 )
3

747
GS350_U (OM30C34U)
7
When trouble arises
7-2. Steps to take in an emergency
If your vehicle overheats
Stop the vehicle in a safe place an d turn off the air conditioning system.
Check to see if steam is coming out from under the hood.
If you see steam:
Stop the engine. Carefully lift the hood after the steam subsides and
then restart the engine.
If you do not see steam:
Leave the engine running and carefully lift the hood.
Check to see if the cooling fan is operating.
If the fan is operating:
Wait until the temperature of the engine (shown on the instrument
panel) begins to fall and then stop the engine.
If the fan is not operating:
Stop the engine immediately and call your Lexus dealer.
After the engine has cooled
down sufficiently, check the
engine coolant level and inspect
the radiator core (radiator) for
any leaks.
If the engine compartment cover
needs to be removed: P. 6 1 6
Add engine coolant if necessary.
Water can be used in an emergency if
engine coolant is unavailable.
( P. 7 5 6 )
Have the vehicle inspected at the near est Lexus dealer as soon as possi-
ble.
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2
3
4
5

749
GS350_U (OM30C34U)
7
When trouble arises
7-2. Steps to take in an emergency
If the vehicle becomes stuck
Stop the engine. Set the parking brake and shift the shift lever to P.
Remove the mud, snow or sand from around the rear wheels.
Place wood, stones or some other material under the rear wheels to
help provide traction.
Restart the engine.
Shift the shift lever to D or R and release the parking brake. Then, while
exercising caution, depress the accelerator pedal.
■When it is difficult to free the vehicle
Carry out the following procedures if the tires spin or the vehicle
becomes stuck in mud, dirt or snow:
Press to turn off TRAC.
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2
3
4
5

GS350_U (OM30C34U)
7878-2. Customization
8
Vehicle specifications
■Vehicle customization
●When the “Auto Lock by Speed” and “Auto Lock by Shift from P” are both on, the
door lock operates as follows.
• When shifting the shift lever to any position other than P, all the doors will be
locked.
• If the vehicle is started with all the door s locked, the “Auto Lock by Speed” would
not operate.
• If the vehicle is started with any door unlocked, the “Auto Lock by Speed” will operate.
●When the smart access system with push-b utton start is off, the “Select Doors to
Unlock” cannot be customized.
●When the doors remain closed after un locking the doors and the “Auto Relock
Timer” activates, the signals will be generated in accordance with the “Lock/
Unlock Feedback-Tone” and the “Lock/Unlock Feedback-Lights” settings.
■When customizing using the Remote Touch
Stop the vehicle in a safe place, apply the parking brake, and shift the shift lever to P.
Also, to prevent battery discharge, leave the engine running while customizing the
features.
CAUTION
■During customization
As the engine needs to be running during customization, ensure that the vehicle is
parked in a place with adequate ventilatio n. In a closed area such as a garage,
exhaust gases including harmful carbon mo noxide (CO) may collect and enter the
vehicle. This may lead to death or a serious health hazard.
NOTICE
■During customization
To prevent battery discharge, ensure that the engine is running while customizing
features.

806What to do if... (Troubleshooting)
GS350_U (OM30C34U)
●Did you press the engine switch while firmly depressing the
brake pedal? (P. 171)
●Is the shift lever in P? ( P. 1 74 )
●Is the electronic key anywhere detectable inside the vehicle?
( P. 1 0 4 )
●Is the steering wheel unlocked? ( P. 175)
●Is the electronic key battery weak or depleted?
In this case, the engine can be started in a temporary way.
( P. 74 1 )
●Is the battery discharged? ( P. 743)
●Is the engine switch in IGNITION ON mode?
If you cannot release the shift lever by depressing the brake
pedal with the engine switch in IGNITION ON mode
( P. 7 3 7 )
●It is locked automatically to prevent theft of the vehicle.
(P. 1 74 )
If you think something is wrong
The engine does not start
The shift lever cannot be shifted from P even if you depress the
brake pedal
The steering wheel cannot be turned after the engine is stopped

808What to do if... (Troubleshooting)
GS350_U (OM30C34U)

●Did anyone inside the vehicle open a door during setting the
alarm?
The sensor detects it and the alarm sounds. ( P. 7 0 )
To stop the alarm, turn the engi ne switch to IGNITION ON mode
or start the engine.
●Is the electronic key left insid e the vehicle or the moon roof
opened?
Check the message on the multi-information display.
( P. 7 0 4 )
●When a warning light turns on or a warning message is dis-
played, refer to P. 686, 697.
An alarm is activated and the horn sounds
A warning buzzer sounds when leaving the vehicle
A warning light turns on or a warning message is displayed