TOYOTA 2012 Matrix - Manual (Page 365)

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4-3. Do-it-yourself maintenance
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If the key battery is discharged
The following symptoms may occur.
●
The wireless remote control will not function properly.
●
The operational range is reduced.
■
Use CR2025 lithium battery
●
Batteries can be purchased at your Toyota dealer, jewelers, or camera
stores.
●
Replace only with the same or equivalent type recommended by your
Toyota dealer.
●
Dispose of used batteries according to the local laws.
CAUTION
■
Removed battery and other parts
Keep away from children. These parts are small and if swallowed by a child,
they can cause choking. Failure to do so could result in death or serious
injury.
NOTICE
■
For normal operation after replacing the battery
Observe the following precautions to prevent accidents.
●
Always work with dry hands.
Moisture may cause the battery to rust.
●
Do not touch or move any other components inside the remote control.
●
Do not bend either of the battery terminals.