Page 554 of 676
5547-2. Steps to take in an emergency
GS350_200t_GS F_OM_OM30F83E_(EE)
Con-
tinuous
(Vehicles with the entry function)
An attempt was made to lock the
doors using the smart entry & start
system while the electronic key was still inside the vehicle.Retrieve the electronic key
from the vehicle and lock the
doors again.
OnceCon-
tinuous
An attempt was made to lock either
front door by opening a door and
putting the inside lock button into
the lock position, then closing the
door by pulling on the outside door
handle with the electronic key still
inside the vehicle.
For some models only: An attempt
was made to lock the doors other
than using the smart entry & start
system while the electronic key was
still inside the vehicle. Retrieve the electronic key
from the vehicle and lock the
doors again.
Once
Page 555 of 676

555
7-2. Steps to take in an emergency
7
When trouble arises
GS350_200t_GS F_OM_OM30F83E_(EE)
Power was turned off due to the
automatic power off function. Next time when starting the
engine, increase the engine
speed slightly and maintain that
level for approximately 5 min-
utes to recharge the battery.
OnceThe electronic key has a low battery. Replace the electronic key bat-
tery. ( P. 491)
Once
The driver’s door was opened and
closed with the engine switch turned
off and then the engine switch was
put in ACCESSORY mode twice
without the engine being started. Press the engine switch while
depressing the brake pedal.
During an engine starting proce-
dure in the event that the electronic
key was not functioning properly ( P. 595), the engine switch was
touched with the electronic key. Press the engine switch within
10 seconds of the buzzer sound-
ing.
Once
The steering lock could not be
released within 3 seconds of the
engine switch being pressed. Press the engine switch while
depressing the brake pedal and
moving the steering wheel left
and right.
Interior
buzzerExteriorbuzzerWarning messageDetails/Actions
(GS350/GS200t)
(GS F)
(Flashes)
Page 591 of 676
591
7-2. Steps to take in an emergency
7
When trouble arises
GS350_200t_GS F_OM_OM30F83E_(EE)
When the engine does not start, the foll owing steps can be used as an interim
measure to start the engine if the engine switch is functioning normally:
Press the parking brake switch to ch eck that the parking brake is set.
( P. 256)
Parking brake indicator will come on.
Shift the shift lever to P.
Turn the engine switch to ACCESSORY mode.
Press and hold the engine switch for about 15 seconds while depressing the
brake pedal firmly.
Even if the engine can be started using the above steps, the system may be mal -
functioning. Have the vehicle inspected by any authorized Lexus retailer or
Lexus authorized repairer, or any reliable repairer.
Emergency start function
1
2
3
4
Page 595 of 676

595
7-2. Steps to take in an emergency
7
When trouble arises
GS350_200t_GS F_OM_OM30F83E_(EE)
Ensure that the shift lever is in P and depress the brake pedal.
Touch the Lexus emblem side of the
electronic key to the engine switch.
When the electronic key is detected, a
buzzer sounds and the engine switch
will turn to IGNITION ON mode.
When the smart entry & start system is
deactivated in customization setting, the
engine switch will turn to ACCESSORY
mode.
Firmly depress the brake pedal and check that and a message (GS F
only) are shown on the multi-information display.
Press the engine switch.
In the event that the engine still cannot be started, contact any authorized Lexus
retailer or Lexus authorized repairer, or any reliable repairer.
■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. 491)
■Alarm (if equipped)
Using the mechanical key to lock the doors or trunk will not set the alarm system.
If a door or trunk are unlocked using the me chanical key when the alarm system is set,
the alarm may be triggered. ( P. 92)
■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. 241)
■When the electronic key does not work properly
●Make sure that the smart entry & start syst em has not been deactivated in the customi-
zation setting. If it is off, turn the function on.
(Customizable features: P. 634)
●Check if battery-saving mode is set. If it is set, cancel the function. (P. 174)
Starting the engine
1
2
3
4
3
Page 599 of 676

599
7-2. Steps to take in an emergency
7
When trouble arises
GS350_200t_GS F_OM_OM30F83E_(EE)
GS F
Connect a positive jumper cable clamp to the positive (+) battery terminal
on your vehicle
Connect the clamp on the other end of the positive cable to the positive (+)
battery terminal on the second vehicle
Connect a negative cable clamp to the negative (-) battery terminal on the
second vehicle
Connect the clamp at the other end of the negative cable to a solid, station-
ary, unpainted metallic point away from the battery and any moving parts,
as shown in the illustration.
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
retailer or Lexus authorized repairer, or any reliable repairer as soon as possible.
1
2
3
4
5
6
7
8
Page 600 of 676

6007-2. Steps to take in an emergency
GS350_200t_GS F_OM_OM30F83E_(EE)
■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 componen ts 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 disc harge 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.)
■When recharging or replacing the battery
●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 mechan-
ical 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 discharged.
Before disconnecting the battery, turn the engine switch off.
If you are unsure what mode the engine switch was in before the batter y discharged, be
especially careful when reconnecting the battery.
Page 636 of 676

6368-2. Customization
GS350_200t_GS F_OM_OM30F83E_(EE)
*1
: The default setting varies according to countries.
* 2
: Some status screens cannot be registered (indicated on the multi-information display)
* 3
: 2 of the following items: current fuel cons umption, average fuel economy (after reset),
average fuel economy (after refuel), average fuel economy (after start), average vehi-
cle speed (after reset), average vehicle speed (after start), distance (driving range),
distance (after start), elapsed time (after reset), elapsed time (after start), blank
* 4
:Except F SPORT models
* 5
:F SPORT models
* 6
:GS350
* 7
:GS200t
Drive information screen dis-
played on the second screen of
(Drive information 2)Distance (range)
*3—O—Average speed
(after reset)
Drive information screen dis-
played on the third screen of
(Drive information 3)
Average fuel economy
(after refuel)
* 3—O—
Elapsed time
(after start)
Pop-up displayOnOff—O—
Accent color *4Color 1Color 2OO—
Clock24-hour display12-hour display—O—
Needle
*5BlueRed—O—White
Rev indicator
*55000 r/min
2000 to
6800 r/min *6
—O—2000 to
6100 r/min *7
Off
Rev peak
*5OnOff—O—
FunctionDefault
settingCustomized setting123
Page 638 of 676
6388-2. Customization
GS350_200t_GS F_OM_OM30F83E_(EE)
*1
: The default setting varies according to country.
* 2
: Some status screens cannot be registered (indicated on multi-information display).
* 3
: 2 of the following items: current fuel cons umption, average fuel economy (after reset),
average fuel economy (after refuel), average fuel economy (after start), average vehi-
cle speed (after reset), average vehicle speed (after start), distance (driving range),
distance (after start), elapsed time (after reset), elapsed time (after start), blank.
* 4
: The customized setting varies according to country.
Speed indicatorOff
50 to
200 km/h *4
—O—50 to 160 km/h
(30 to
100 mph) *4
Drive mode
gauges
SPORT SSPORT S mode
screenSPORT S+ mode screen—O—
SPORT S+SPORT S+ mode screenSPORT S mode screen—O—
CUSTOMIZENormal mode
screen
Eco drive mode screen
—O—SPORT S mode
screen
SPORT S+ mode screen
FunctionDefault settingCustomized setting123