The typical battery is a 3-volt CR2032 coin cell, but some 2016 key fobs use CR2025 or CR2016 depending on the brand and model. Always verify by checking the fob’s case or the owner's manual before replacement.
Understanding the battery landscape for 2016 fobs
In 2016, automakers largely standardized on the CR2032 coin cell for remote keys, but there are notable exceptions. The exact size can vary by brand, fob design, and regional market. If you’re unsure, inspect the battery compartment or remove the existing battery to read the size printed on it.
Common sizes you may encounter:
- CR2032 — 3V coin cell; the most widely used size for 2016-era fobs.
- CR2025 — 3V coin cell; used in some slimmer or compact fobs.
- CR2016 — 3V coin cell; found in a few smaller or older fob designs.
Note: Battery dimensions vary in diameter and thickness. Use the exact size specified for your fob to ensure proper contact and operation.
How to replace the battery
If you’re comfortable doing a quick home repair, here are the steps to replace the battery safely and effectively.
- Confirm the correct battery size (usually CR2032). If in doubt, check the fob or owner’s manual.
- Power down the vehicle and remove any physical key from the fob if applicable.
- Carefully pry apart the two halves of the fob along the seam using a small flat tool, taking care not to damage the casing.
- Remove the old battery and note its orientation (which side is facing up).
- Insert the new battery with the correct polarity (positive side typically facing up). Avoid touching the battery contacts with bare fingers.
- Reassemble the fob, ensuring it snaps shut cleanly and any screws are tightened.
- Test the remote by pressing a button from a short distance to confirm it’s working.
- If the remote doesn’t work afterward, you may need to re-pair it with the car or check for other issues like a damaged transmitter or a dead car battery.
Concluding paragraph: Replacing the battery properly restores range and reliability. If you’re unsure about the process or the fob remains nonfunctional after replacement, consult a dealership or locksmith for assistance.
Safety and aftercare
Handle batteries with care. Avoid short-circuiting the contacts, keep batteries away from children, and recycle spent batteries at appropriate locations. Some fobs may require professional reprogramming after a battery change, so factor that into your plans.
Summary
For most 2016 key fobs, the standard replacement is a 3-volt CR2032 coin cell, with CR2025 or CR2016 appearing in a minority of designs. Always verify the exact size before purchase, replace the battery following proper steps, and seek professional help if the fob still doesn’t function after replacement.