Toyota 2008 Prius Quick Reference Manual page 424

n If the electronic key battery is discharged
The following symptoms may occur.
The smart key system and wireless remote control will not function prop-
l
erly.
l The operational range is reduced.
Use a CR2032 lithium battery
n
Batteries can be purchased at your Toyota dealer, jewelers, or camera
l
stores.
l Replace only with the same or equivalent type recommended by a Toy-
ota dealer.
l Dispose of used batteries according to the local laws.
CAUTION
n Removed battery and other parts
Keep away from children.
These parts are small and if swallowed by a child they can cause choking.
NOTICE
For normal operation after replacing the battery
n
Observe the following precautions to prevent accidents.
Always work with dry hands.
l
Moisture may cause the battery to rust.
Do not touch or move any other components inside the electronic key.
l
l Do not bend the battery terminals.
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4-3. Do-it-yourself maintenance
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