How to Replace the Key Fob Battery in a Chevrolet Kodiak

1. Pry the transmitter apart with a flat, thin object inserted into the slot near the key ring hole.
2. Remove the old battery.
3. Insert the new battery with the positive (+) side down, using a CR2032 or equivalent.
4. Align the transmitter halves and put them back together.
5. Check that the transmitter works; if not, it may need to be resynchronized to the vehicle.

• Do not touch any circuitry on the transmitter, since static from your body could damage it.
• To resynchronize, stand close to the vehicle and hold LOCK and UNLOCK together for at least five seconds; the door locks should cycle.

Source: 2010 Chevrolet Kodiak owner's manual, PDF pages 70, 71. Steps are summarized in our own words (AI-assisted, checked against the cited pages 2026-10-18). Other model years can differ; your manual has the final word.