The 2005 Honda Accord key fob uses a single 3-volt CR2032 coin cell battery. This is the standard replacement for that model’s remote.
The following guide outlines the exact battery type and how to replace it, so you can get your key fob functioning reliably again without guesswork. The information here focuses on the 2005 Accord’s remote, a common configuration for that year’s model.
Battery specification
Before purchasing a replacement, confirm you’re getting the right size and voltage for the 2005 Accord fob.
- Battery type: CR2032
- Voltage: 3.0 V
- Form factor: Coin cell, approximately 20 mm in diameter and 3.2 mm thick
Using a CR2032 coin cell ensures proper fit and reliable operation for the 2005 Accord key fob.
Replacement steps
To replace the battery, follow these steps carefully to avoid damaging the fob.
- Extract the mechanical key (if your fob has one) and locate the seam where the two halves meet.
- Gently pry the fob apart along the seam using a small flat tool or a coin to separate the halves.
- Remove the old battery, noting the orientation (which side is facing up).
- Insert a new CR2032 with the positive side facing up.
- Reconnect the two halves of the fob and reinsert the mechanical key if applicable.
- Test the remote buttons to confirm proper operation from a short distance.
If the fob doesn’t respond after replacement, double-check the battery orientation and seating, and consider consulting a dealer if programming or re-pairing is required.
Summary
The 2005 Honda Accord key fob uses a CR2032 3V coin cell battery. Replace it by opening the fob, swapping in a new CR2032 with the correct orientation, and reassembling. If issues persist, seek professional assistance to rule out programming or circuitry problems.