
6207-2. Steps to take in an emergency
GS350_250_OM_OM30E16E_(EE)
■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. 4 8 9 )
■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. 2 3 8 )
■When the electronic key does not work properly
●Make sure that the smart entry & start system has not been deactivated in the cus-
tomization setting. If it is off, turn the function on.
(Customizable features: →P. 6 5 0 )
●Check if battery-saving mode is set. If it is set, cancel the function. ( →P. 1 3 3 )
CAUTION
■When using the mechanical key and operating the power windows and moon
roof
Operate the power window or moon roof after checking to make sure that there is
no possibility of any passenger having any of their body parts caught in the window
or moon roof.
Also, do not allow children to operate the mechanical key. It is possible for children
and other passengers to get caught in power window and moon roof.
3
GS350_250_OM_OM30E16E_(EE).book Page 620 Tuesday, July 8, 201 4 7:11 PM

6227-2. Steps to take in an emergency
GS350_250_OM_OM30E16E_(EE)
Start the engine of the second vehicle. Increase the engine speed
slightly and maintain at that level for approximately 5 minutes to
recharge the battery of your vehicle.
Open and close any of the doors of your vehicle with the engine switch
off.
Maintain the engine speed of the second vehicle and start the engine of
your vehicle by turning the engine switch to IGNITION ON mode.
Once the vehicle’s engine has started, remove the jumper cables in the
exact reverse order from which they were connected.
Once the engine starts, have the vehicle inspected at any authorized
Lexus dealer or repairer, or another duly qualified and equipped profes-
sional as soon as possible.
■Starting the engine when the battery is discharged
The engine cannot be started by push-starting.
■To prevent battery discharge
●Turn off the headlights and the audio system while the engine is off.
●Turn off any unnecessary electrical components when the vehicle is running at a
low speed for an extended period, such as in heavy traffic.
■Charging the battery
The electricity stored in the battery will discharge gradually even when the vehicle is
not in use, due to natural discharge and the draining effects of certain electrical
appliances. If the vehicle is left for a long time, the battery may discharge, and the
engine may be unable to start. (The battery recharges automatically during driving.)
3
4
5
6
GS350_250_OM_OM30E16E_(EE).book Page 622 Tuesday, July 8, 201 4 7:11 PM

6237-2. Steps to take in an emergency
7
When trouble arises
GS350_250_OM_OM30E16E_(EE)
■When recharging or replacing the battery
●For vehicles with an alarm: make sure that the key is not inside the vehicle when
recharging or replacing the battery. The key may be locked in the vehicle if the
alarm is activated. (→P. 88)
●In some cases, it may not be possible to unlock the doors using the smart entry &
start system when the battery is discharged. Use the wireless remote control or the
mechanical key to lock or unlock the doors.
●The engine may not start on the first attempt after the battery has recharged but
will start normally after the second attempt. This is not a malfunction.
●The engine switch mode is memorized by the vehicle. When the battery is recon-
nected, the system will return to the mode it was in before the battery was dis-
charged. Before disconnecting the battery, turn the engine switch off.
If you are unsure what mode the engine switch was in before the battery dis-
charged, be especially careful when reconnecting the battery.
CAUTION
■Avoiding battery fires or explosions
Observe the following precautions to prevent accidentally igniting the flammable
gas that may be emitted from the battery:
●Make sure each jumper cable is connected to the correct terminal and that it is
not unintentionally in contact with any other than the intended terminal.
●Do not allow the other end of the jumper cable connected to the “+” terminal to
come into contact with any other parts or metal surfaces in the area, such as
brackets or unpainted metal.
●Do not allow the + and - clamps of the jumper cables to come into contact with
each other.
●Do not smoke, use matches, cigarette lighters or allow open flame near the bat-
tery.
GS350_250_OM_OM30E16E_(EE).book Page 623 Tuesday, July 8, 201 4 7:11 PM

659
8
8-2. Customization
Vehicle specifications
GS350_250_OM_OM30E16E_(EE)
*1: If equipped
*2: The default setting varies according to countries.
*3: Right-hand drive vehicles
*4: Refer to the “NAVIGATION AND MULTIMEDIA SYSTEM OWNER’S
MANUAL”.
*6: If both are equipped
ItemFunctionDefaultsettingCustom-
ized setting
Illumination
( → P. 3 9 9 )
Enable/disable operation
of the outer foot lights
when you approach the
vehicle with the electronic
key on your person
OnOff——O
Enable/disable operation
of the outer foot lights
when the doors are
unlocked with the power
door lock switch
OnOff——O
Rear
sunshade
*1
(→ P. 4 2 7 )
Reverse operationOnOff——O
Time elapsed before the
reverse operation feature
activates0.7
seconds
0 second
——O
0.9
seconds
1.2
seconds
*5: This is the switch for turning on and off the
automatic mode of the air conditioning
system, not the outside air or recirculated
mode switch.
123
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676Alphabetical index
GS350_250_OM_OM30E16E_(EE)
Eco drive mode ...................................... 315
Eco Driving Indicator .................. 108, 112
Electric Power Steering (EPS)......... 321Function .................................................... 321
Warning light .......................................546
Warning message.............................557
Electronic key...........................................122
Battery-saving function.....................133
If the electronic key does not operate properly ............................. 618
Replacing the battery...................... 489
Emergency, in case of If a warning buzzer sounds .......... 544
If a warning light turns on...............544
If a warning message is
displayed ............................................552
If the battery is discharged ..............621
If the electronic key does not operate properly ............................. 618
If the engine will not start .................612
If the parking brake cannot be released......................................... 615
If the shift lever cannot be
shifted from P .....................................614
If you have a flat tire .............. 577, 592
If you think something is wrong............................................... 542
If your vehicle becomes stuck.....628
If your vehicle has to be stopped in an emergency..........535
If your vehicle needs to
be towed.............................................536
If your vehicle overheats ................625 Emergency brake signal......................321
Emergency flashers............................. 534
Emergency tire puncture
repair kit ................................................ 592
Engine ....................................................... 634 Accessory mode ............................... 238
Compartment ..................................... 454
Engine switch .......................................237
Hood ....................................................... 450
How to start the engine ..................237
Identification number....................... 633
If the engine will not start ................. 612
Ignition switch (engine switch)................................. 237
Overheating ........................................ 625
Engine compartment cover ............. 455
Engine coolant....................................... 459 Capacity................................................. 642
Checking ............................................... 459
Preparing and checking
before winter.................................... 354
Engine coolant temperature
gauge ........................................................ 99
Engine immobilizer system ................. 80
Engine oil ................................................. 456 Capacity................................................. 635
Checking ............................................... 456
Oil level warning message........... 562
Oil pressure warning message ............................................. 553
Preparing and checking before winter.................................... 354
E
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684Alphabetical index
GS350_250_OM_OM30E16E_(EE)
Steering lock...........................................240Column lock release.......................... 241
Steering lock system warning message..............................................575
Steering wheel ........................................ 195 Adjustment ............................................. 195
Audio switches
*
Heated steering wheel...................... 417
Power easy access system ............ 186
Steering wheel position
memory................................................ 186
Stop lights
Emergency brake signal .................. 321
Replacing light bulbs....................... 530
Storage feature......................................402
Stuck If the vehicle becomes stuck ........628
Sun visors .................................................. 412
Sun shade Rear .......................................................... 427
Rear door...............................................428
Roof ..........................................................209
Switches AFS OFF switch ...................................261
Audio remote control switches
*
Automatic High Beam switch ..... 264
BSM (Blind spot monitor) switch......................................................341
Cruise control switch ......................285
“DISP” button ........................................ 103
Door lock switches ...............................171
Driving mode select switch ........... 315 Driving position memory
switches ................................................ 187
Dynamic radar cruise control switch ................................................... 289
Emergency flashers switch........... 534
Engine switch .......................................237
Fog light switch................................... 270
Headlight cleaner switch................279
Heated steering wheel switch ...... 417
HUD (Head-up display) switches ................................................. 110
Ignition switch ...................................... 237
Lexus parking assist-sensor switch
*
Light switches...................................... 259
LKA (Lane-Keeping Assist) switch ................................................... 307
Moon roof switches ......................... 208
Outside rear view mirror switches ................................................ 199
Paddle shift switches......................... 247
PCS OFF switch.................................. 331
Power door lock switch ..................... 171
Power window switches................ 204
Rear sunshade switch ......................427
Rear window and outside rear view mirror defoggers
switch ................................................... 396
Seat heater switches .......................... 419
Seat ventilator switches .................... 419
Snow mode switch ........................... 246
Talk switch
*
Telephone switches*
Tilt and telescopic steering control switch ....................................195
GS350_250_OM_OM30E16E_(EE).book Page 684 Tuesday, July 8, 201 4 7:11 PM