2015 TOYOTA GT86 change key battery

44 1-2. Opening, closing and locking the doors and trunk
Electronic key battery depletion
The standard battery life is 1 to 2 years.
If the battery becomes low, an alarm will sound in the cabin when the
engine stops. (P. 380)
As the electronic key always receives radio waves, the battery will
become depleted even if the electronic key is not used. The following
symptoms indicate that the electronic key battery may be depleted.
Replace the battery when necessary. (P. 331)
• The smart entry & start system or the wireless remote control does not
operate.
• The detection area becomes smaller.
• The LED indicator on the key surface does not turn on.
To avoid serious deterioration, do not leave the electronic key close to
any of the following electrical appliances that produce a magnetic field:
•TVs
• Personal computers
• Cellular phones, cordless phones and battery chargers
• Recharging cellular phones or cordless phones
• Induction cookers
• Table lamps
When the electronic key battery is fully depleted
P. 331
If the smart entry & start system has been deactivated in a customized
setting
Locking and unlocking the doors, unlocking the trunk: Use the wireless
remote control or mechanical key. (P. 51, 414)
Starting the engine and changing “ENGINE START STOP” switch
modes: P. 415
Stopping the engine: P. 417
Customization that can be configured at any authorized Toyota dealer
or repairer, or another duly qualified and equipped professional
Settings (e. g. smart entry & start system) can be changed.
(Customizable features: P. 447)

53 1-2. Opening, closing and locking the doors and trunk
1
Before driving
If the wireless remote control does not operate properly (vehicles with
a smart entry & start system)
Locking and unlocking the doors, unlocking the trunk: Use the mechanical
key. (P. 414)
Key battery depletion
Vehicles without a smart entry & start system
If the wireless remote control function does not operate, the battery may be
depleted. Replace the battery when necessary. (P. 331)
Vehicles with a smart entry & start system
P. 4 4
When the electronic key battery is fully depleted
P. 331
Confirmation of the registered key number (vehicles with a smart entry
& start system)
The number of keys already registered to the vehicle can be confirmed. Ask
any authorized Toyota dealer or repairer, or another duly qualified and
equipped professional for details.
Customization that can be configured at any authorized Toyota dealer
or repairer, or another duly qualified and equipped professional
Settings (e.g. wireless remote control system) can be changed.
(Customizable features P. 447)

174 2-1. Driving procedures
Operation of the “ENGINE START STOP” switch
When operating the “ENGINE START STOP” switch, one short, firm press is
enough. If the switch is pressed improperly, the engine may not start or the
“ENGINE START STOP” switch mode may not change. It is not necessary to
press and hold the switch.
Electronic key battery depletion
P. 4 4
Conditions affecting operation
P. 4 0
Note for the entry function
P. 4 1
If the engine does not start
The engine immobilizer system may not have been deactivated. (P. 91)
Contact any authorized Toyota dealer or repairer, or another duly qualified
and equipped professional.
Steering lock
After turning the “ENGINE START STOP” switch off and opening and closing
the doors, the steering wheel will be locked due to the steering lock function.
Operating the “ENGINE START STOP” switch again automatically cancels
the steering lock.
Vehicles with an automatic transmission:
Check that the shift lever is securely set
in P. The engine may not start if the shift
lever is displaced out of P. The smart
entry & start system indicator light (green)
will flash quickly.

260 3-3. Using the interior lights
Interior light
Turns the light off
Turns the door position on
Turns the light on
Illuminated entry system
Vehicles without a smart entry & start system
The lights automatically turn on/off according to the engine switch position,
whether the doors are locked/unlocked, and whether the doors are open/
closed.
Vehicles with a smart entry & start system
The lights automatically turn on/off according to “ENGINE START STOP”
switch mode, the presence of the electronic key, whether the doors are
locked/unlocked, and whether the doors are open/closed.
To prevent battery discharge
If the following lights remain on when the door is not fully closed, the lights
will go off automatically after 20 minutes:
Interior light (when the switch is in the
“DOOR” position)
Engine switch light (vehicles without a smart entry & start system)
“ENGINE START STOP” switch light (vehicles with a smart entry & start
system)
Door courtesy lights (if equipped)
Customization that can be configured at any authorized Toyota dealer
or repairer, or another duly qualified and equipped professional
Settings (e.g. the time elapsed before lights turn off) can be changed.
(Customizable features
P. 447)
Interior light

5
417 5-2. Steps to take in an emergency
When trouble arises
Stopping the engine
Vehicles with an automatic transmission: Shift the shift lever to P and press
the “ENGINE START STOP” switch as you normally do when stopping the
engine.
Vehicles with a manual transmission: Shift the shift lever to N and press the
“ENGINE START STOP” 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 depletes.
(P. 331)
Changing “ENGINE START STOP” switch modes
Vehicles with an automatic transmission
Release the brake pedal and press the “ENGINE START STOP” switch in
above.The engine does not start and modes will be changed each
time the switch is pressed. (P. 172)
Vehicles with a manual transmission
Release the clutch pedal and press the “ENGINE START STOP” switch in
above.The engine does not start and modes will be changed each
time the switch is pressed. (P. 172)
If the doors cannot be locked or unlocked by the smart entry & start
system
Lock and unlock the doors by the mechanical key or wireless remote control.
STEP 3
STEP 3