Maintenance and care -> Electronic key battery for Your Toyota Prius 4 Door Third Generation (2010-2015)

4-3. Do-it-yourself m aintenanc e  
Elec tronic key batter y  
Replace the battery with a new one if it is depleted.  
You will need the following items:  
Flathead screwdriver  
Lithium battery CR1632  
Replacing the battery  
Take out the mechanical key.  
STEP  
1
Remove the cover.  
STEP  
2
To prevent damage, cover the  
tip of the screwdriver with a  
rag.  
Remove the depleted battery.  
STEP  
3
Insert a new battery with the  
“+” terminal facing up.  
ITO43P194  
STEP  
4
When installing, reverse the steps listed.  
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4-3. Do-it-yourself maintenance  
Use a CR1632 lithium battery  
Batteries can be purchased at your Toyota dealer, local electrical appli-  
ance shops or camera stores.  
Replace only with the same or equivalent type recommended by the  
manufacturer.  
Dispose of used batteries according to local laws.  
If the electronic key battery is depleted  
The following symptoms may occur:  
The smart key system and wireless remote control will not function prop-  
erly.  
The operational range will be reduced.  
CAUTION  
Removed battery and other parts  
4
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 component inside the remote control.  
Do not bend either of the battery terminals.  
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