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2007-2012 Toyota Corolla 4 Door Maintenanceandcare -> Key battery User Manual
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Maintenanceandcare -> Key battery for Your Toyota Corolla 4 Door Ninth Generation (2007-2012)

4-3. Do-it-yourself maintenance  
Key battery  
Replace the battery with a new one if it is discharged.  
■ You will need the following items:  
● Flathead screwdriver (To prevent damage to the key, cover  
the tip of the screwdriver with a rag.)  
● Small Phillips-head screwdriver  
● Lithium battery  
Vehicles with smart key system: CR1632  
Vehicles without smart key system: CR2025 (Type A)  
CR2016 (Type B)  
■ Replacing the battery (vehicles with smart key system)  
Take out the mechanical key.  
STEP  
1
4
Remove the cover.  
STEP  
2
343  
4-3. Do-it-yourself maintenance  
Remove the depleted battery.  
STEP  
3
Insert a new battery with the  
“+” terminal facing up.  
■ Replacing the battery (vehicles without smart key system)  
Remove the cover.  
STEP  
1
Remove the module.  
STEP  
2
344  
4-3. Do-it-yourself maintenance  
Type A  
Open the case cover using a  
STEP  
3
flathead  
screwdriver  
pro-  
tected with tape etc. and  
remove the depleted battery.  
Insert a new battery (CR2025)  
with the “+” terminal facing up.  
4
Type B  
Open the case cover using a  
coin protected with tape etc.  
and remove the depleted bat-  
tery.  
STEP  
3
Insert a new battery (CR2016)  
with the “+” terminal facing up.  
345  
4-3. Do-it-yourself maintenance  
■If the key battery is discharged  
The following symptoms may occur.  
●The smart key system and wireless remote control will not function prop-  
erly.  
●The operational range is reduced.  
■Use the following types of lithium battery  
Vehicles with smart key system: CR1632  
Vehicles without smart key system: CR2025 (Type A), CR2016 (Type B)  
●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.  
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.  
346  

Related Topics

Maintenanceandcare
4-1. Maintenance and care Cleaning and protecting the vehicle exterior Cleaning and protecting the vehicle interior 4-2. Maintenance General maintenance Emission inspection and maintenance (I/M) programs 4-3. Do-it-yourself maintenance Do-it-yourself service precautions Hood Positioning a floor jack Engine compartment Tires Tire inflation pressure Wheels Air conditioning filter Checking and replacing fuses Light bulbs

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