The key fob uses a CR2032 3-volt coin cell battery.
For the 2015 Honda Fit, that CR2032 is the standard power source for the remote. Replacing it is a common DIY task, and doing it correctly will ensure your remote continues to operate reliably. Below is what you need to know about the battery type and how to replace it safely.
Battery type and compatibility
Clarifying the battery size helps you buy the right part and avoid substitutions that could fail or leak. The 2015 Honda Fit key fob is typically powered by a CR2032 3V coin cell. If you’re unsure, check the owner’s manual, the back of the fob (which sometimes lists the battery type), or ask a parts retailer using your vehicle’s year, make, and model.
What to expect from the replacement
CR2032 batteries are inexpensive, widely available at supermarkets, electronics stores, and auto parts shops. The replacement process is straightforward and requires only a few common tools and careful handling to protect the fob’s electronics.
Replacement steps
Prepare your workspace and gather a few items before you begin; having them on hand speeds up the process and reduces the risk of misplacing parts.
- Purchase a CR2032 3V coin cell battery from a reputable retailer.
- Use a small flathead screwdriver or a coin to gently pry open the fob’s seam along the edge.
- Carefully separate the two halves of the fob to expose the battery.
- Take note of the battery’s orientation (the positive side is typically facing up in the compartment).
- Remove the old battery and insert the new CR2032 with the correct orientation.
- Reconnect the halves and press them together until they click securely.
- Test the fob by locking/unlocking the doors or starting the vehicle if it supports keyless start.
After replacement, clean any contacts if needed and ensure the fob closes snugly without gaps. If the range is weak or the buttons feel unresponsive, reseat the battery and verify orientation.
Notes on recycling and safety
Dispose of the old battery at an appropriate recycling facility. Do not throw it in the trash. Handle the fob gently to avoid damaging the internal switch contacts, and store spare batteries out of reach of children.
Summary
In brief: the 2015 Honda Fit key fob uses a CR2032 3V coin cell battery. Replacement is straightforward: identify the battery, open the fob, swap in the new battery with the correct orientation, reassemble, and test. Always recycle used batteries and consult the owner’s manual if you’re unsure.