carfobbattery

Honda Odyssey (LX) key fob battery

Every model year listed for the Honda Odyssey (LX) has a proven battery. The most common answer is CR1616. Rows below run oldest to newest; a year can appear twice when the car came with more than one kind of key.

  1. 2008Key-head remote

    CR1616

    Two sites agree: americankeysupply.com and uhs-hardware.com (checked Nov 2, 2026)

    Find CR1616 on Amazon

Changing the battery

Key with remote in the head

  1. Here the key blade and remote are one piece. You open the plastic head, not the blade.
  2. Find the seam around the head. Twist a coin or small flat screwdriver in the notch at the blade end or side until the halves part.
  3. Inside you may find a small circuit board in a tray. Lift the board out if the cell is underneath, swap the cell with the same side up, and refit the board.
  4. Close the head, check there is no gap, and try the buttons.

A CR1616 is 16 mm across and 1.6 mm thick. It is easy to confuse with the 20 mm CR20xx sizes, which will not fit.

If a child might have swallowed a coin cell, treat it as an emergency and get to a hospital right away.

Other Honda models