How to Replace the Key Fob Battery in a Cadillac Escalade and Escalade ESV

1. Press the button on the side of the remote key and pull the mechanical key out.
2. Use the mechanical key blade in the slot to remove the battery cover by hand.
3. Pull the tab to remove the seal and reach the battery.
4. Remove the old battery without using a metal object.
5. Insert the new CR2450 Lithium or equivalent battery with the positive side facing up.
6. Place the seal back into the groove around the battery compartment.
7. Snap the battery cover back onto the remote key.
8. Reinsert the mechanical key.

• Replace the battery soon when the Driver Information Center displays REPLACE BATTERY IN REMOTE KEY.
• Never pull the mechanical key out without pressing the button.
• Do not touch the circuitry on the remote key, since static could damage it.

Source: 2026 Cadillac Escalade and Escalade ESV owner's manual, PDF pages 13, 12. 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.