Like anything powered by a battery, a car key fob can die—often at the worst time. Here’s how to change the battery in your key fob quickly and safely. Check your battery type. Most fobs use small ...

Check your battery type. Most fobs use small coin batteries (like CR2032), so confirm before you buy. Pry it open with care. Find the seam, pop it gently—no need to wrestle with it. Replace and click ...