Wireless Door Lock Control System: Replacement

REPLACE TRANSMITTER BATTERY
NOTE: Special caution should be taken for handling each component as they are precision electronic components.
1. Using a screwdriver, open the transmitter case.
  
  Fig 1: Opening Transmitter Case
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  
  NOTE: Do not forcibly pry out the cover.
2. Remove the battery (lithium battery).
NOTE:
- Do not push the terminals with your finger.
- Prying up the batteries (lithium battery) to forcibly remove it will cause deformation of the terminals.
- Do not touch the battery with wet hands. Water may cause unexpected rust.
- Do not touch or move any components inside the transmitter as it may interfere with proper operation.
INSTALL TRANSMITTER BATTERY
1. Install a new battery (lithium battery) with the positive (+) side up, as shown in Fig 2.
  
  Fig 2: Installing New Battery
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  NOTE:
  - Be sure that the positive side and the negative side of the transmitter battery are matched-up correctly.
  - Be careful not to bend the electrode of the transmitter battery insertion.
  - Be careful that dust or oil does not adhere to the transmitter case.
2. 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.