How to Replace the Key Fob Battery in a Cadillac SRX

Steps from the 2016 Cadillac SRX owner's manual.

Press the button on the side of the transmitter near the bottom and pull the key out.
Separate the two halves of the transmitter with a flat tool in the bottom center, not the key slot.
Remove the old battery without using a metal object.
Insert the new CR2032 or equivalent battery in the back housing with the positive side facing down.
Align the front and back housing and snap the transmitter together.

Replace the battery when the REPLACE BATTERY IN REMOTE KEY message shows in the DIC.
Do not touch any of the transmitter circuitry; static from your body could damage it.

Source: 2016 Cadillac SRX owner's manual, PDF pages 33, 34. 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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