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Home >> Toyota >> 2003 >> Tundra 2WD V6-3.4L (5VZ-FE) >> Repair and Diagnosis >> Body and Frame >> Locks >> Keyless Entry >> Keyless Entry Transmitter >> Keyless Entry Transmitter Battery >> Service and Repair
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Keyless Entry Transmitter Battery: Service and Repair

1. REPLACE TRANSMITTER BATTERY

NOTE: Special caution should be taken for handling each component as they are precision electronic components.




a. Using a screwdriver, open the transmitter case.

NOTE: Do not pry out the cover forcibly.

b. Remove the battery (lithium battery).

NOTE:
- Do not push the terminals with a finger.
- If prying up the batteries (lithium battery) forcibly to remove, the terminals are deformed.
- Do not replace the batteries with wet hands. Water may cause unexpected rust.
- Do not touch or move any components inside the transmitter, or it may interfere with the proper operation.




c. Install a new battery (lithium battery) with the positive (+) side up, as shown in the illustration.

NOTE:
- Check that the positive side and negative side of the transmitter battery should be faced correctly.
- Be careful not to bend the electrode of the transmitter battery insertion.
- Be careful that no dust or oil will adhere to the transmitter case.

d. Check that the rubber cover is not distorted or slipped off, and install the cover.

NOTE: Any damage might cause faulty contact of battery (lithium battery) and terminals.
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