2017 TOYOTA AYGO change key battery

1233-2. Opening, closing and locking the doors
3
Operation of each component
AYGO_OM_Europe_OM99Q24E
■ 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. 398)
● As the electronic key always receives radio waves, the battery will become
depleted even if the electronic key is not used. The following symptoms indi-
cate that the electronic key battery may be depleted. Replace the battery
when necessary. ( P. 354)
• 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 within 1 m
(3 ft.) 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
• Table lamps
• Induction cookers
■ 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. 459)
■ If the smart entry & start system has been deactivated in a customized
setting
● Locking and unlocking the doors:
Use the wireless remote control or mechanical key. ( P. 99, 429)
● Starting the engine and changing engine switch modes: P. 430
● Stopping the engine: P. 159

1604-2. Driving procedures
AYGO_OM_Europe_OM99Q24E
Modes can be changed by pressing the engine switch with the brake
pedal (multi-mode manual transmission) or clutch pedal (manual
transmission) released. (The mode changes each time the switch is
pressed.)
Off
The emergency flashers can be
used.
The smart entry & start system
indicator light (green) is off.
ACCESSORY mode
Some electrical components such
as the audio system can be used.
The smart entry & start system
indicator light (green) flashes
slowly.
IGNITION ON mode
All electrical components can be
used.
The smart entry & start system
indicator light (green) flashes
slowly.
■ Auto power off function
If the vehicle is left in ACCESSORY or IGNITION ON mode (the engine is not
running) for more than an hour, the engine switch will automatically turn off.
However, this function cannot entirely prevent battery discharge. Do not leave
the vehicle with the engine switch in ACCESSORY or IGNITION ON mode for
long periods of time when the engine is not running.
■ Electronic key battery depletion
 P. 123
■ Conditions affecting operation
 P. 121
■ Notes for the entry function
 P. 122
■ If the engine does not start
● The engine immobilizer system may not have been deactivated. (P. 7 6 )
Contact any authorized Toyota dealer or repairer, or another duly qualified
and equipped professional.
● The steering lock may not have been canceled.
Changing engine switch modes

1614-2. Driving procedures
4
Driving
AYGO_OM_Europe_OM99Q24E
■ Steering lock
After turning the engine switch off and opening and closing the doors, the
steering wheel will be locked due to the steering lock function. Operating the
engine switch again automatically cancels the steering lock.
■ When the steering lock cannot be released
■ Steering lock motor overheating prevention
To prevent the steering lock motor from overheating, the motor may be sus-
pended if the engine is turned on and off repeatedly in a short period of time.
In this case, refrain from running the engine. After about 10 seconds, the
steering lock motor will resume functioning.
■ If the system is malfunctioning
 P. 393
■ If the electronic key battery is depleted
 P. 354
■ Operation of the engine switch
● When operating the engine switch, one short, firm press is enough. If the
switch is pressed improperly, the engine may not start or the engine switch
mode may not change. It is not necessary to press and hold the switch.
● If attempting to restart the engine immediately after turning the engine
switch off, the engine may not start in some cases. After turning the engine
switch off, please wait a few seconds before restarting the engine.
● The buzzer sound when the following occurs
• When the engine switch is pressed while the vehicle is running
Other than cases of emergency, do not press the engine switch while the
vehicle is running.
• When the engine is stopped by emergency shutdown operation
( P. 379)
The buzzer will sound continuously until the engine is restarted, or the
vehicle is completely stopped and the engine switch is turned to IGNI-
TION ON mode.
■ If the smart entry & start system has been deactivated in a customized
setting
 P. 429
The smart entry & start system indicator
light (green) will flash quickly.
Press the engine switch while turning the
steering wheel left and right.

4318-2. Steps to take in an emergency
8
When trouble arises
AYGO_OM_Europe_OM99Q24E
■Stopping the engine
Shift the shift lever to N 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. 354)
■ Changing engine switch modes
Release the brake pedal (multi-mode m anual transmission) or clutch pedal
(manual transmission) and press t he engine switch in step above.
The engine does not start and modes will be changed each time the switch is
pressed. ( P. 160)
■ 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. 459)
● Check if battery-saving mode is set. If it is set, cancel the function.
( P. 121)