Transmitter Battery: Replacement

WARNING: This page is about a different car, the 2007 Lexus RX 350. However, it is still accessible from the selected car via links, so may be relevant.

REMOVE TRANSMITTER BATTERY
1. Remove the cover.
  
  Fig 1: Identifying Cover
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2. Using a coin, or other flat object, pry open the transmitter cover.
  
  Fig 2: Prying Open Transmitter Cover With Coin
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
3. Remove the transmitter battery (lithium battery).
  NOTE:
  - Do not push the terminals with your finger.
  - Forcibly prying up the battery (lithium battery) to remove it will deform the terminals.
  - Do not touch the battery with wet hands. Water may cause rust.
  - Do not touch or move any components inside the transmitter because handling the components may interfere with proper operation of the transmitter.
INSTALL TRANSMITTER BATTERY
1. Install a new battery (lithium battery) with the positive (+) side up.
  
  Fig 3: Installing Transmitter Battery (Lithium Battery)
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  NOTE:
  - Be sure that the positive side and the negative side of the transmitter battery are matched correctly.
  - Be careful not to bend the terminals of the transmitter battery during installation.
  - Be careful that dust and oil do not come into contact with the transmitter case.
2. Install the cover.
  NOTE: If the screws are loose, it may cause faulty contact between the battery (lithium battery) and the terminals.