How to Replace the Key Fob Battery in a Chevrolet Silverado LD and 2500HD/3500HD

1. Pry off the back cover of the transmitter with a flat, thin object such as a coin.
2. Press the battery and slide it down toward the pocket, in the direction of the key ring, without using a metal object.
3. Remove the old battery.
4. Insert a new CR2032 or equivalent battery with the positive side facing up.
5. Push the back cover on top side first, then the bottom toward the key ring.

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

Source: 2019 Chevrolet Silverado LD and 2500HD/3500HD owner's manual, PDF pages 38, 39. 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.