How to Replace the Battery in a Honda Fit Key?
2 Answers
To replace the battery in a Fit key, first press the button on the electronic key to eject the mechanical key. There is a notch under the mechanical key cover. Insert a coin into the notch and twist it clockwise to separate the electronic key into two parts: the electronic board and the power source. At this point, you can see the battery. Remove the old battery by hand and replace it with a new one.
I see you're asking about replacing the Honda Fit key battery—I've done it myself before, and it's pretty straightforward. From my experience, the Fit key is mostly the button-type remote key that uses a CR2032 coin cell battery. First, find a small tool like a Phillips screwdriver or a coin. Some key casings have small notches on the edge—just gently pry it open without using too much force to avoid cracking the shell. Then, remove the old battery, paying attention to the positive-side-up orientation (don’t get it wrong—the new battery should also face positive-side outward when inserted). Close the casing and test the buttons to check if the light or remote function works. If it does, you're all set. I’ve also noticed that the battery lasts about a year and a half, so it’s best to keep a few spares in the car to avoid getting locked out late at night when the key fails, saving you unnecessary trips to the dealership. After replacing it, wipe the key with a damp cloth to prevent rust and ensure durability.
