The key fob for a 2017 Honda Civic uses a CR2032 3-volt lithium coin battery.
This article explains the battery type, how to confirm it on your unit, and step-by-step replacement guidance, plus safety and disposal tips.
Battery specification
Key facts about the battery for the 2017 Civic key fob, including the standard battery type and physical size you should expect.
- Battery type and rating: CR2032 3V lithium coin cell
- Diameter and thickness: about 20 mm in diameter and 3.2 mm thick
- Typical replacement interval: roughly 2–5 years depending on usage and climate
- Compatibility note: standard for most 2016–2019 Honda Civic remotes; verify with your owner manual or dealership if unsure
In short, CR2032 is the standard battery for the 2017 Civic key fob, and using the correct orientation when installing the replacement is important to restore proper function.
Replacing the battery
When the remote stops responding, replacing the battery is usually the quickest fix. Prepare with the right coin cell and a calm, careful approach to avoid damaging the fob.
- Identify the seam on the key fob and use a small flat-head screwdriver or a fingernail to pry the two halves apart gently. Do not force anything that feels stuck.
- Remove the old battery and note its orientation (the plus (+) side is typically facing up toward the buttons).
- Insert a fresh CR2032 with the correct polarity, ensuring it sits flat in the cavity.
- Align the fob halves and snap them back together until you hear a click. Test the buttons to confirm the fob is working.
- Dispose of the old battery properly at a recycling drop-off or hazardous-waste facility in your area.
If the remote still doesn’t respond after replacement, try a second fresh battery or contact Honda support, as the issue could be with the circuit board or the remote itself.
Tools and tips
- Use a non-metal tool or a plastic opening tool to separate the halves to avoid shorting the contacts.
- Keep the battery away from small children and pets to prevent ingestion.
- Carry a spare CR2032 battery in your vehicle or bag for on-the-go replacements.
- If your fob is water-damaged or cracked, have it inspected by a professional rather than attempting a DIY repair.
These practical tips help ensure a safe and effective replacement experience and prolong the life of your key fob.
Where to buy and warranty considerations
Common places to purchase a CR2032 and what to know about warranties or dealer replacements.
- Most electronics retailers and supermarkets carry CR2032 batteries in the coin-cell section.
- Automotive parts stores and Honda dealerships can provide the exact battery and sometimes offer replacement services.
- Check your vehicle's warranty or the key fob's warranty if you recently purchased the car; a replacement battery is typically not covered unless specified.
When replacing the battery, always choose a fresh, high-quality CR2032 from a reputable brand to maximize performance and avoid leaks or poor contact.
Summary
The 2017 Honda Civic key fob relies on a CR2032 3-volt lithium coin battery. Replacement is straightforward with careful disassembly, correct battery orientation, and proper disposal of the old cell. If the fob continues to fail after a fresh battery, the issue may lie with the remote’s electronics rather than the battery, and professional service may be required.