Toyota SIENNA 2011 Quick Reference Manual page 705

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Use a CR2032 lithium battery
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Batteries can be purchased at your Toyota dealer, local electrical appli-
ance shops or camera stores.
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Replace only with the same or equivalent type recommended by the
manufacturer.
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Dispose of used batteries according to local laws.
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If the key battery is depleted
The following symptoms may occur.
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The smart key system (if equipped) and wireless remote control will not
function properly.
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The operational range will be reduced.
CAUTION
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Removed battery and other parts
Keep away from children.
These parts are small and if swallowed by a child, they can cause choking.
NOTICE
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For normal operation after replacing the battery
Observe the following precautions to prevent accidents.
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Always work with dry hands.
Moisture may cause the battery to rust.
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Do not touch or move any other components inside the remote control.
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Do not bend either of the battery terminals.
I n f o r ma t i o n P r o v i d e d b y :
4-3. Do-it-yourself maintenance
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