key Lexus GS350 2017 Repair Manual

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

5967-2. Steps to take in an emergency
GS350_200t_GS F_OM_OM30F83E_(EE)
WARNING
■When using the mechanical key and operating the power windows or moon roof (if
equipped)
Operate the power window or moon roof afte r 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 me chanical key. It is possible for children and
other passengers to get caught in the power window or moon roof.

597
7
7-2. Steps to take in an emergency
When trouble arises
GS350_200t_GS F_OM_OM30F83E_(EE)
If the vehicle battery is discharged
If you have a set of jumper (or booster) cables and a second vehicle with a 12-volt
battery, you can jump start your vehicle by following the steps below.Confirm that the electronic key is
being carried.
When connecting the jumper (or
booster) cables, depending on the situa-
tion, the alarm may activate and doors
locked. ( P. 94)
Open the hood. ( P. 451)
GS200t/GS F: Remove the engine cover.
The following procedures may be used to start the engine if the vehicle’s bat-
tery is discharged.
You can also call any authorized Lexus retailer or Lexus authorized repairer,
or any reliable repairer.
1
2
3
GS200tGS F
Raise the front of the engine cover
to remove the front clips, and then
raise the rear of the engine cover
to remove the rear clips.

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.

641
8
8-2. Customization
Vehicle specifications
GS350_200t_GS F_OM_OM30F83E_(EE)
■RSA (Road Sign Assist)*1
(  P. 326)
* 1
: If equipped
* 2
: If a speed limit with supplemental mark is exceeded, the warning buzzer does not
operate.
* 3
: No-overtaking notification only
■Door lock ( P. 159, 594)
FunctionDefault
settingCustomized setting
RSA (Road Sign Assist)OnOff—O—
Excess speed notification
methodOnly visual
No Notification
—O—Visual and
audible *2
Excess speed notification level3 km/h (1 mph)5 km/h (3 mph)—O—10 km/h (5 mph)
Other notifications
method
*3Only visual
No Notification
—O—Visual and
audible *2
123
FunctionDefault
settingCustomized setting
Unlocking on second key turn
(Allows all doors to be
unlocked by turning the
mechanical key twice in the
driver’s door)Off
(All doors
unlocked in one
step)
On
(Driver’s door
unlocked in one step, all doors
unlocked in two steps)
——O
Speed linked door locking
functionOnOffO—O
Shift position linked door lock-
ing functionOffOnO—O
Shift position linked door
unlocking functionOffOnO—O
Driver’s door linked door
unlocking functionOnOffO—O
Locking/unlocking of the trunk
when all doors are locked/
unlocked
OnOff——O
123

643
8
8-2. Customization
Vehicle specifications
GS350_200t_GS F_OM_OM30F83E_(EE)
■Front seats (P. 196)
■Outside rear view mirrors ( P. 211)
■Power windows and moon roof * ( P. 214, 217)
* : If equipped
FunctionDefault
settingCustomized setting
Driver’s seat movement when
exiting the vehicleStandardOffO—OPartial
Selecting the door linking driv-
ing position memory with door
unlock operationDriver’s doorAll doors——O
123
FunctionDefaultsettingCustomized setting
Automatic mirror folding and
extending operation
Linked to the
locking/
unlocking of the
doorsOff
——OLinked to opera-
tion of the engine
switch
Linked mirror function when reversingOnOff——O
123
FunctionDefaultsettingCustomized setting
Mechanical key linked opera- tionOffOn——O
Wireless remote control linked operationOffOn——O
Buzzer sounds if operated
using wireless remote controlOnOff——O
123

6488-2. Customization
GS350_200t_GS F_OM_OM30F83E_(EE)
■Illumination (P. 416)
FunctionDefault
settingCustomized setting
Interior lights illumination con-
trolOnOff——O
Time elapsed before the inte-
rior lights turn off15 seconds7.5 secondsO—O30 seconds
Operation after the engine
switch is turned offOnOff——O
Operation when the doors are
unlockedOnOff——O
Operation when you approach
the vehicle with the electronic
key on your person (vehicles
with entry function)
OnOff——O
Footwell lightingOnOff——O
Outer foot lightsOnOff——O
Time elapsed before the outer
foot lights turn off15 seconds
Off
O—O7.5 seconds
30 seconds
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
123

654What to do if... (Troubleshooting)
GS350_200t_GS F_OM_OM30F83E_(EE)
What to do if... (Troubleshooting)
●If you lose your mechanical keys, new genuine mechanical keys can be made
by any authorized Lexus retailer or Lexus authorized repairer, or any reliable
repairer. ( P. 156)
● If you lose your electronic keys, the risk of vehicle theft increases significantly.
Contact any authorized Lexus retailer or Lexus authorized repairer, or any
reliable repairer immediately. ( P. 157)
● Is the electronic key battery weak or depleted? ( P. 491)
● Vehicles with entry function
Is the engine switch in IGNITION ON mode?
When locking the doors, turn the engine switch off. ( P. 241)
● Vehicles with entry function
Is the electronic key left inside the vehicle?
When locking the doors, make sure that you have the electronic key on your person.
● The function may not operate properly due to the condition of the radio wave.( P. 175)
● Is the child-protector lock set?
The rear door cannot be opened from inside the vehicle when the lock is set.
Open the rear door from outside and then unlock the child-protector lock. ( P. 163)
If you have a problem, check the following before contacting any authorized
Lexus retailer or Lexus authorized repairer, or any reliable repairer.
The doors cannot be locked, un locked, opened or closed
You lose your keys
The doors cannot be locked or unlocked
The rear door cannot be opened

655
What to do if... (Troubleshooting)
GS350_200t_GS F_OM_OM30F83E_(EE)
● The function to prevent the electronic ke y from being left inside the trunk will
operate and you can open the trunk as usual. Take the key out from the trunk. (  P. 168)
● Did you press the engine switch while firmly depressing the brake pedal?
(  P. 240)
● Is the shift lever in P? ( P. 242)
● Is the electronic key anywhere detectable inside the vehicle? ( P. 173)
● Is the steering wheel unlocked? ( P. 242)
● Is the electronic key battery weak or depleted?
In this case, the engine can be started in a temporary way. ( P. 595)
● Is the battery discharged? ( P. 597)
● 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. 253)
● It is locked automatically to prevent theft of the vehicle. ( P. 242)
The trunk lid is closed with the electronic key left inside
If you think som
ething is wrong
The engine does not start
The shift lever cannot be shifted fr om P even if you depress the brake
pedal
The steering wheel cannot be turned after the engine is stopped

656What to do if... (Troubleshooting)
GS350_200t_GS F_OM_OM30F83E_(EE)
●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. 214)
● The auto power off function will be operated if the vehicle is left in ACCES-
SORY or IGNITION ON mode (the engine is not running) for a period of
time. ( P. 242)
● The seat belt reminder light is flashing
Are the driver and the front passenger wearing the seat belts? ( P. 520)
● The parking brake indicator is on
Is the parking brake released? ( P. 256)
Depending on the situation, other type s of warning buzzer may also sound.
(  P. 518, 524)
● 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. 92)
To stop the alarm, turn the engine switch to IGNITION ON mode or start the
engine. ● Is the electronic key left inside the vehicle or the moon roof opened (if
equipped)?
Check the message on the multi-information display. ( P. 524)
The windows do not open or close by operating the power window
switches
The engine switch is turned off automatically
A warning buzzer sounds during driving
An alarm is activated and th
e horn sounds (if equipped)
A warning buzzer sounds when leaving the vehicle
(vehicles with entry function)