Lexus Lx470 Owner's Manual page 328

4-3. Do-it-yourself maintenance
If the wireless remote control battery is discharged
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The following symptoms may occur.
The wireless remote control will not function properly.
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The operational range is reduced.
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The indicator light on the wireless remote control is dimmed or does not come
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on.
Use a CR2016 lithium battery
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Batteries can be purchased at your Lexus dealer, jewelers or camera stores.
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Replace only with the same or equivalent type recommended by a Lexus dealer.
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Dispose of used batteries according to the local laws.
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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. Moisture may cause the battery to rust.
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Do not touch or move any other components inside the electronic key.
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Do not bend the battery terminals.
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Take care not to lose the screws.
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