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To change the RFA (Remote Keyless Entry) battery in a 2003 Yukon Denali, first, locate the key fob and use a small flathead screwdriver to gently pry open the fob. Remove the old battery, noting the orientation, and replace it with a new CR2032 battery, ensuring the positive side is facing up. Snap the fob back together and test the remote to ensure it’s working properly.

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3w ago

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