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How To Replace the Battery in Your Car's Keyless Remote


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In With the New!
This keychain remote takes a 2025.

Check the battery type and placement before you go on.

photo by Matt Wright, 2009
You now have your battery cover removed. Before you tear the battery that gave you weeks of frustration right out of the thing, take a look at how it's in there so you can put the new battery in correctly. Most remotes have a + sign on the side that gets the + side of the battery facing up, but you'd be mad if yours was the remote that decided not to provide that info.

So stick your new battery or batteries in the hole and you're back in business. Congrats!

If your keyless remote looks more complicated than the Honda one, read on to see how a Mercedes Benz (and similar) remote holds its batteries.

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  5. How To Replace Your Keyless Remote Battery - Replacing the Battery In Your Key Chain - Keyless Remote Battery Replacement

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