* Note a variation on this fob here: https://www.youtube.com/watch?v=YMcgzWDIx5g Here we show how to replace the battery in a new (2021) General Motors with a fresh one. The fob was introduced in 2021 in various Buick, Chevrolet and GMC models and Cadillac uses a mirror version of the same fob. We have a Buick Envision, which remains the only Buick model using it. We'll need a new CR 2450 battery and we'll use the mechanical key and the tip of a very small screwdriver as tools. And if we helped and you see the "Thanks" button below the video, please lend your support to our efforts. #generalmotors #chevrolet #cadillac #gmc #gm #buick #DeadKeySolutions #keyfob #keylessentry #pushbutton ------------------------------------------------------------------- Remember that only proper service and repair procedures will ensure the safe and reliable operation of your car. In addition, proper safety procedures and precautions, such as the use of safety goggles, the right tools and the equipment should be followed at all times to eliminate the possibility of personal injury or improper service which could damage the vehicle or compromise its safety. These posts are for information sharing purposes only, and should not be used in lieu of an OEM service manual or factory authorized service procedure. We are not in the auto repair business nor do we publish automotive service manuals. Nothing we include on these pages and posts has been reviewed, approved or authorized by any vehicle manufacturer.