The 2017 Honda Ridgeline key fob uses a CR2032 lithium coin cell battery.
That compact 3-volt battery powers the remote's core functions, including lock, unlock, trunk release, and the alarm signal. While CR2032 is the standard size for many Honda remotes of this era, some variations or dealer-specific fobs could differ. If your fob behaves unusually after a replacement, check the battery size and orientation in your owner's manual or with a dealer.
Battery type and compatibility
For model year 2017 Ridgelines, the typical remote key fob relies on a CR2032 battery due to its compact size and reliable performance. This coin cell is widely available and economical, making replacements straightforward for most drivers.
Replacing the battery
If the remote's range has diminished or the buttons feel less responsive, replacing the battery is a common first step. Below is a practical guide to replacing the battery correctly.
What you’ll need
Before you begin, assemble the items below to ensure a smooth replacement without damaging the fob.
- CR2032 3V lithium coin battery (brand you trust)
- Small flat-head screwdriver or plastic prying tool
- Clean, lint-free cloth to wipe contacts
Having these items on hand reduces the risk of damage and speeds up the process.
Step-by-step instructions
These steps will guide you through a safe and effective battery replacement.
- Examine the fob to locate the seam where the two halves meet.
- Gently pry apart the halves using the tool, taking care not to crack the plastic.
- Remove the back cover to expose the battery compartment and note the orientation of the old battery (positive side facing up in most cases).
- Insert the new CR2032 with the correct polarity into the holder.
- Reassemble the fob halves and test the remote by pressing a button to confirm operation.
If the fob still doesn’t respond after replacement, double-check the battery orientation and seating, and ensure the contacts are clean and intact.
Troubleshooting and care
Even with a fresh battery, a fob can fail to work if the battery is inserted incorrectly, the contacts are dirty, or the internal circuitry has an issue. Regularly check the battery life and replace roughly every 1–2 years, depending on usage and climate.
Where to buy and cost
CR2032 batteries are widely available at auto parts stores, big-box retailers, and online. Expect a small cost per battery, with higher-end brands offering longer life and better performance in extreme temperatures.
Summary
For a 2017 Honda Ridgeline, the key fob uses a CR2032 3V lithium coin cell. Replacing it is a quick, tool-free task: pry open the fob, swap in the correct polarity, reassemble, and test. Keeping a spare CR2032 on hand helps maintain reliable remote access and alarm functionality.


