How to Replace the Key Fob Battery in a GMC Sierra 1500 Limited

1. Press the button on the RKE transmitter to remove the key, never pulling it out without pressing the button.
2. Insert a flat, thin object in the center of the transmitter to separate and remove the back cover.
3. Lift out the old battery with a flat object.
4. Insert the new battery with the positive side toward the back cover, using a CR2032 or equivalent.
5. Make sure the silicone mat sits correctly with no gaps or wrinkles.
6. Set the transmitter button side down on a hard surface and press the other half straight down to close it.
7. Insert the key back into the RKE transmitter.

• Replace the battery soon when REPLACE BATTERY IN REMOTE KEY shows in the DIC.
• Do not touch the circuitry; static could damage the transmitter.
• The battery is a choking hazard; keep it away from children.

Source: 2022 GMC Sierra 1500 Limited owner's manual, PDF pages 20, 21. 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.