how to fix Honda Accord 9th Generation (2013-2017) key fob not unlocking doors

Honda Accord 11th Gen (2023-Present)

Error Codes

30 minutes to 1 hour

Time

medium

Difficulty

medium

Severity

3 min read

545 words

Problem Statement

Learn how to fix the key fob not unlocking doors on Honda Accord 2013-2017. Step-by-step guide for diagnostics and battery replacement.

Affected Component

Electrical

Estimated Time

30 minutes to 1 hour

⚠️ Safety Warnings

Important safety information - read before proceeding

•Ensure the vehicle is in 'Park' and the ignition is off while working on the key fob

Symptoms

•Key fob buttons unresponsive
•Check if the key fob LED indicator does not light up
•Doors do not unlock when the fob is pressed
•Remote start feature may not work
•Possible intermittent unlocking when pressing the fob

Diagnostic Steps

1
Inspect the key fob for physical damage (cracks, water exposure)
2
Replace the battery in the key fob with a new one to rule out low power
3
Check for interference from other electronic devices or nearby vehicles
4
Test the key fob's signal using another compatible vehicle, if available
5
Scan the vehicle’s body control module (BCM) for any stored fault codes

Solution

💡 Expert Tip

For complex repairs like this, consider taking photos at each step. This helps if you need to reverse a step or consult with a mechanic. Also, keep all removed parts organized - you may need to reference them during reassembly.

Verification

After completing the repair, verify that the issue has been resolved:

✓Test the affected component to ensure it functions correctly
✓Check for any error codes or warning lights
✓Monitor the vehicle for a few days to ensure the issue does not recur

Prevention Tips

To prevent this issue from occurring again:

•Follow the manufacturer's recommended maintenance schedule
•Address warning signs early before they develop into major issues
•Use quality parts and fluids recommended for your vehicle
•Keep detailed records of all repairs and maintenance

Tools & Equipment Required

•Small flathead screwdriver

Parts Required

•Key fob battery (CR2032 or CR2025)

Related Faults

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Diagnostic Steps

1
Inspect the key fob for physical damage (cracks, water exposure)
2
Replace the battery in the key fob with a new one to rule out low power
3
Check for interference from other electronic devices or nearby vehicles
4
Test the key fob's signal using another compatible vehicle, if available
5
Scan the vehicle’s body control module (BCM) for any stored fault codes

Solution

1. Preparation

Gather the necessary tools and parts.
Ensure the vehicle is in a safe location and the ignition is off.

2. Replace Key Fob Battery

Open the Key Fob:
- Use a small flathead screwdriver to gently pry the key fob apart at the seam.
- Take care not to damage the plastic casing.
Remove the Old Battery:
- Note the orientation of the battery (positive and negative sides).
- Remove the old battery using the screwdriver or your fingers.
Install the New Battery:
- Insert the new battery (CR2032 or CR2025 type) in the same orientation as the old one.
- Ensure it is seated properly in the battery compartment.
Reassemble the Key Fob:
- Snap the two halves of the key fob back together until you hear a click.
- Test the key fob by pressing any button to check for LED activity.

3. Reprogram the Key Fob (if necessary)

Enter Programming Mode:
- Sit in the driver's seat and close all doors.
- Insert the key into the ignition and turn it to the "ON" position without starting the engine, then back to "OFF" five times within 10 seconds.
Program the Key Fob:
- Press and hold the "Lock" button on the key fob until the doors lock and unlock automatically, indicating successful programming.
- Repeat this step for additional key fobs if necessary.
Exit Programming Mode:
- Turn the ignition to the "OFF" position to exit programming mode.