Sienna FWD V6-3.3L (3MZ-FE) (2006)
Keyless Entry Transmitter Battery: Service and Repair
TRANSMITTER BATTERY
REPLACEMENT
1. REMOVE TRANSMITTER BATTERY
NOTE: Special caution should be taken for handling each component as they are precision electronic components.
a. Using a coin or the equivalent, pry out the transmitter case.
NOTE: Do not forcibly pry out the case.
b. Remove the battery (lithium battery).
NOTE:
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Do not push the terminals with your finger.
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Prying up the battery (lithium battery) to forcibly remove it will cause deformation of the terminals.
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Do not touch the battery with wet hands. Water may cause unexpected rust.
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Do not touch or move any components inside the transmitter, or it may interfere with the proper operation.
2. INSTALL TRANSMITTER BATTERY
a. Install a new battery (lithium battery) with the positive (+) side up, as shown in the illustration.
NOTE:
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Be sure that the positive side and the negative side of the transmitter battery are faced correctly.
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Be careful not to bend the electrode of the transmitter battery insertion.
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Be careful that no dust or oil adheres to the transmitter case.