How to Replace the Key Fob Battery in a Chevrolet Trax

1. Press the button on the side of the remote key to remove the key; never pull it out without pressing the button.
2. Separate the two halves of the remote key using a flat tool inserted near the key slot.
3. Push on the battery and slide it toward the bottom of the remote key to remove it.
4. Insert the new battery with the positive side facing the back cover and push it down until held in place.
5. Snap the battery cover back onto the remote key.

• Use a CR2032 or equivalent battery.
• Replace the battery soon when the DIC displays REPLACE BATTERY IN REMOTE KEY.
• Do not touch the circuitry on the remote key; static could damage it.

Source: 2026 Chevrolet Trax owner's manual, PDF pages 15, 16. 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.