carfobbattery

Dodge Magnum key fob battery

Every model year listed for the Dodge Magnum has a proven battery. The most common answer is CR2032. Rows below run oldest to newest; a year can appear twice when the car came with more than one kind of key.

  1. 2005-2007Key-head remote

    CR2032

    FCC ID KOBDT04A

    Two sites agree: uhs-hardware.com and carandtruckremotes.com (checked Nov 1, 2026)

    Find CR2032 on Amazon
  2. 2008Remote (separate)

    CR2032

    FCC ID IYZ-C01C; M3N5WY783X

    Two sites agree: manualslib.com and americankeysupply.com (checked Nov 2, 2026)

    Find CR2032 on Amazon

Changing the battery

Key with remote in the head

  1. This type has the buttons built into the key head. The cell is inside that head, between two clipped halves.
  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. Replace the cell with the same face showing, and make sure the rubber keypad sits flat before closing.
  4. Press the head together until it clicks and test the buttons. The transponder chip that lets the car start is separate from the battery, so starting should not change.

A CR2032 is 20 mm across and 3.2 mm thick. CR2032, CR2025 and CR2016 share the same width but not the same thickness, so a swap between them can leave a loose contact or a case that will not close.

Separate remote fob

  1. This remote is its own fob, separate from the metal key, which makes it one of the easier ones to open.
  2. Look for a screw on the back or a notch on the edge. Remove the screw if present, then twist a coin in the notch to split the case.
  3. Lift the old coin cell out and press the new one in with matching orientation.
  4. Close the fob and test it. If it does not work, open it again and check the cell is seated flat.

A CR2032 is 20 mm across and 3.2 mm thick. CR2032, CR2025 and CR2016 share the same width but not the same thickness, so a swap between them can leave a loose contact or a case that will not close.

Coin cells are a choking and burn hazard for children. Store the spares in their original pack, out of reach.

Other Dodge models