stop Lexus GS250 2012 Owner's Manual

8247-2. Steps to take in an emergency
GS350/250_EE (OM30C36E)
Stopping the engine
Shift the shift lever to P and press the engine switch as you normally do when
stopping the engine.
Replacing the key battery
As the above procedure is a temporary measure, it is recommended that the
electronic key battery be replaced immediately when the battery is depleted.
(P. 697)
Alarm (if equipped)
Using the mechanical key to lock the doors will not set the alarm system.
If a door is unlocked using the mechanical key when the alarm system is set,
the alarm may be triggered.
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. 208)
When the electronic key does not work properly
Make sure that the smart entry & start system has not been deactivated in
the customization setting. If it is off, turn the function on.
(Customizable features P. 855)
Check if battery-saving mode is set. If it is set, cancel the function. (P.
129)
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8307-2. Steps to take in an emergency
GS350/250_EE (OM30C36E)
If your vehicle overheats
Stop the vehicle in a safe place and 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 instru-
ment panel) begins to fall and then stop the engine.
If the fan is not operating:
Stop the engine immediately and call any authorized Lexus
dealer or repairer, or another duly qualified and equipped profes-
sional.
After the engine has cooled
down sufficiently, check the
engine coolant level and
inspect the radiator core (radi-
ator) for any leaks.
If the engine compartment cover
needs to be removed: P. 6 6 1
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8337-2. Steps to take in an emergency
7
When trouble arises
GS350/250_EE (OM30C36E)
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 TRC.
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865
8 8-2. Customization
Vehicle specifications
GS350/250_EE (OM30C36E)
Vehicle customization
When the smart entry & start system is off, the “Select doors to unlock”
cannot be customized.
When the doors remain closed after unlocking the doors and the “Auto
relock timer” activates, the signals will be generated in accordance with 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 ventilation. In a closed area such
as a garage, exhaust gases including harmful carbon monoxide (CO) may
collect and enter the vehicle. This may lead to death or a serious health haz-
ard.
NOTICE
During customization
To prevent battery discharge, ensure that the engine is running while cus-
tomizing features.

871What to do if... (Troubleshooting)
GS350/250_EE (OM30C36E)
It is locked automatically to prevent theft of the vehicle.
(P. 211)
Is the window lock switch pressed?
The power window except for the one at the driver’s seat
cannot be operated if the window lock switch is pressed.
(P. 178)
The auto power off function will be operated if the vehi-
cle is left in ACCESSORY or IGNITION ON mode (the
engine is not running) for a period of time. (P. 211) The steering wheel cannot be turned after the engine is
stopped
The windows do not open or close by operating the power
window switches
The engine switch is turned off automatically

872What to do if... (Troubleshooting)
GS350/250_EE (OM30C36E)
The seat belt reminder light is flashing
Are the driver and the front passenger wearing the seat
belts?
(P. 752)
The parking brake indicator is on
Is the parking brake released? (P. 225)
Depending on the situation, other types of warning buzzer
may also sound. (P. 749, 757)

Did anyone inside the vehicle open a door or anything
move inside the vehicle during setting the alarm?
The sensor detects them and the alarm sounds. (P. 86)
To stop the alarm, turn the engine switch to IGNITION ON
mode or start the engine. A warning buzzer sounds during driving
An alarm is activated and the horn sounds (if equipped)

874What to do if... (Troubleshooting)
GS350/250_EE (OM30C36E)
Vehicles with a spare tire
Stop the vehicle in a safe place and replace the flat tire
with the spare tire. (P. 783)
Vehicles without a spare tire
Stop the vehicle in a safe place and repair the flat tire tem-
porarily with the emergency tire puncture repair kit. (P.
798)
Try the procedure for when the vehicle becomes stuck in
mud, dirt, or snow. (P. 833)
When a problem has occurred
If you have a flat tire
The vehicle becomes stuck

880Alphabetical index
GS350/250_EE (OM30C36E)
Eco drive mode .........................328
Eco Driving Indicator ........109, 114
Electric Power Steering (EPS) ..334
Function ................................334
Warning light........................751
Warning message..................762
Electronic key............................118
Battery-saving function ........129
If the electronic key does not
operate properly .................822
Replacing the battery ............697
Emergency, in case of
If the battery is discharged ...825
If the electronic key does not
operate properly .................822
If the engine will not start.....816
If the parking brake cannot
be released ..........................819
If the shift lever cannot be
shifted from P .....................818
If the warning buzzer sounds749
If the warning light turns on .749
If the warning message is
displayed ............................757
If you have a flat tire ....783, 798
If you think something
is wrong ..............................747
If your vehicle becomes stuck ....
833
If your vehicle has to be
stopped in an emergency ....739
If your vehicle needs to
be towed .............................740
If your vehicle overheats ......830Emergency brake signal ........... 334
Emergency flashers .................. 738
Emergency tire puncture
repair kit ................................. 798
Engine....................................... 838
Accessory mode................... 208
Compartment ....................... 660
Engine switch ...................... 207
Hood .................................... 657
How to start the engine ........ 207
Identification number .......... 837
If the engine will not start .... 816
Ignition switch
(engine switch) .................. 207
Overheating ......................... 830
Engine compartment cover....... 661
Engine coolant .......................... 665
Capacity ............................... 847
Checking .............................. 665
Preparing and checking
before winter ..................... 359
Engine coolant temperature
gauge ........................................ 99
Engine immobilizer system ........ 80
Engine oil ................................. 662
Capacity ............................... 839
Checking .............................. 662
Oil level warning message... 766
Oil pressure warning
message ............................. 758
Preparing and checking
before winter ..................... 359
E

888Alphabetical index
GS350/250_EE (OM30C36E)
Steering lock..............................211
Column lock release .............212
Steering lock system warning
message ..............................781
Steering wheel ...........................170
Adjustment ...........................170
Audio switches .....................543
Heated steering wheel...........629
Power easy access system ....166
Steering wheel position
memory ..............................162
Stop lights
Emergency brake signal .......334
Replacing light bulbs ............735
Storage feature...........................614
Stuck
If the vehicle becomes stuck.833
Sun visors ..................................624
Sun shade
Rear ......................................636
Rear door ..............................637
Roof ......................................182
Switches
AFS OFF switch ...................230
Audio remote control
switches ..............................543
Automatic High Beam switch ....
233
BSM (Blind spot monitor)
switch .................................354
Cruise control switch ............254
“DISP” button.......................104
Door lock switches ...............146
Driving mode select switch ..328Driving position memory
switches ............................. 162
Dynamic radar cruise control
switch ................................ 258
Emergency flashers switch .. 738
Engine switch ...................... 207
Fog light switch ................... 239
Headlight cleaner switch ..... 248
Heated steering wheel switch ....
629
HUD (Head-up display)
switches ............................. 112
Ignition switch ..................... 207
Lexus parking assist-sensor
switch ................................ 285
Light switches ...................... 228
LKA (Lane-Keeping Assist)
switch ................................ 276
Moon roof switches ............. 181
Outside rear view mirror
switches ............................. 174
Paddle shift switches ........... 218
PCS OFF switch .................. 344
Power door lock switch ....... 146
Power window switches ...... 178
Rear sunshade switch........... 636
Rear window and outside rear
view mirror defoggers
switch ................................ 430
Seat heater switches ............. 631
Seat ventilator switches ....... 632
Snow mode switch ............... 217
Talk switch .................. 402, 567
Telephone switches.............. 543
Tilt and telescopic steering
control switch .................... 170