FYI….Key Fob battery replacement has nothing to do with the mileage of the vehicle. It’s like any battery. It depends what the draw is and for how long. Enjoyed your video.
Sorry I didn’t notice that I missed that It’s relatively simple you have to push on the tabs and pop out If you find that it doesn’t work when you put the battery in backwards, it won’t do any actual damage to the unit Thank you for commenting Ray