Toyota 4runner 2010 Instruction Manual page 526

4-3. Do-it-yourself maintenance
Use a CR2016 (vehicles without a smart key system) or CR1632 (vehi-
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cles with a smart key system) lithium battery
Batteries can be purchased at your Toyota dealer, local electrical appli-
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ance shops or camera stores.
Replace only with the same or equivalent type recommended by the
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manufacturer.
Dispose of used batteries according to local laws.
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If the key battery is depleted
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The following symptoms may occur:
The smart key system and wireless remote control will not function prop-
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erly.
The operational range will be reduced.
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CAUTION
Removed battery and other parts
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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
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Observe the following precautions to prevent accidents:
Always work with dry hands.
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Moisture may cause the battery to rust.
Do not touch or move any other component inside the remote control.
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Do not bend either of the battery terminals.
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