Most 2014-era key fobs use a 3-volt coin-cell battery, with CR2032 being the most common. Some models may use CR2025 or other sizes depending on the remote’s thickness and design.
Key fob batteries are model-specific, so the exact size depends on the make and model of the car. This guide outlines typical coin-cell sizes from that era, how to identify the correct battery for your fob, and how to replace it safely.
Common coin-cell sizes used in 2014-era key fobs
The following sizes cover the vast majority of 2014 remotes. Always check the actual battery inside your fob or your owner's manual to confirm the exact type before purchasing a replacement.
- CR2032 — 3V, 20 mm diameter, about 3.2 mm thick; widely used in many brands’ remotes from that time.
- CR2025 — 3V, 20 mm diameter, about 2.5 mm thick; used in thinner remotes or specific models.
- CR1632 — 3V, 16 mm diameter, about 3.2 mm thick; found in some compact or slimmer remotes.
- CR1616 — 3V, 16 mm diameter, about 1.6 mm thick; less common, but used in a few smaller fobs.
CR2032 remains the default for most 2014 remotes, though you may encounter CR2025, CR1632, or CR1616 in particular models or designs.
How to identify and replace your key fob battery
Before you replace the battery, determine the exact size your fob requires and follow a careful replacement process to avoid damage to the remote.
- Inspect the fob for markings or a model number, and check the battery itself for a size stamp (for example, CR2032).
- Open the fob by prying along the seam with a small, flat tool or coin; gently separate halves and note the battery’s orientation (which side is facing up).
- Measure or compare to common sizes (CR2032, CR2025, CR1632, CR1616) if the battery isn’t labeled; when in doubt, take the old battery to an auto parts store for confirmation.
- Replace with the same size and ensure the polarity is correct; snap the fob halves back together firmly and test the buttons to verify function.
Replacing with the wrong size or incorrect orientation can prevent the remote from working, so accuracy matters.
Brand-specific notes
Here are general tendencies for widely used brands around 2014. Always verify with your manual or dealer, as exceptions exist.
- Most Toyota, Honda, Nissan, Ford, Chevrolet, and Volkswagen remotes from that era used CR2032.
- Some slimmer remotes from Hyundai, Kia, and certain models used CR2025 or CR1632.
- Luxury brands like BMW, Mercedes, and Audi commonly used CR2032 in many models; some compact or special remotes may differ.
Bottom line: CR2032 is the most common size for 2014-era key fobs, but verify for your specific vehicle.
Summary
In short, a 2014 key fob typically uses a 3V coin-cell battery, with CR2032 being the most frequent choice. However, CR2025, CR1632, or other sizes may appear in certain models. To replace, confirm the exact size by inspecting the old battery or consulting the owner's manual or dealer, then install the same size with proper orientation and reassemble the fob. Always test the remote after replacement to ensure full functionality.