How to Replace the Key Fob Battery in a Cadillac Escalade EXT

Steps from the 2013 Cadillac Escalade EXT owner's manual (RKE transmitter).

Separate the transmitter by inserting a flat, thin object into the notch above the metal base.
Take out the old battery without using a metal object.
Insert the new battery with the positive side facing up, using a CR2032 or equivalent.
Snap the transmitter back together.

Replace the battery when REPLACE BATTERY IN REMOTE KEY appears in the DIC.
Do not touch any circuitry on the transmitter, since static from your body could damage it.

Source: 2013 Cadillac Escalade EXT owner's manual, PDF page 32. 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.

Confirm with your own manual, dipstick or door-jamb label.
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