how can I fix the key fob not working on my Ford Explorer Sixth Generation (2020-present)?

Ford Explorer Sixth Generation (2020-present)

Error Codes

30 minutes to 1 hour

Time

medium

Difficulty

medium

Severity

3 min read

527 words

Problem Statement

Learn how to diagnose and fix a non-working key fob for the Ford Explorer Sixth Generation. Step-by-step guide with symptoms, diagnostic steps, and solutions.

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 engine is off while performing repairs to avoid accidental movement.

Symptoms

•Key fob buttons do not respond when pressed
•The vehicle does not recognize the key fob when attempting to start
•LED indicator on key fob does not light up
•Key fob works intermittently
•Doors do not lock or unlock remotely

Diagnostic Steps

1
Verify the battery in the key fob by replacing it with a new one.
2
Check for physical damage to the key fob casing and buttons.
3
Attempt to reprogram the key fob by following manufacturer instructions.
4
Inspect the vehicle's keyless entry system for any faults.
5
Use an OBD-II scanner to check for any error codes related to the keyless entry system or immobilizer.

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
•Phillips screwdriver
•OBD-II scanner

Parts Required

•Key fob battery (CR2032)

Related Faults

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Diagnostic Steps

1
Verify the battery in the key fob by replacing it with a new one.
2
Check for physical damage to the key fob casing and buttons.
3
Attempt to reprogram the key fob by following manufacturer instructions.
4
Inspect the vehicle's keyless entry system for any faults.
5
Use an OBD-II scanner to check for any error codes related to the keyless entry system or immobilizer.

Solution

1. Preparation

Gather tools: Small flathead screwdriver, Phillips screwdriver, new key fob battery (CR2032), and OBD-II scanner (if needed).
Ensure you are in a well-lit area and have access to the vehicle.

2. Replace the Key Fob Battery

Use the small flathead screwdriver to gently pry open the key fob casing along the seam.
Remove the old battery, noting the orientation (positive and negative sides).
Insert the new battery (CR2032) in the same orientation as the old one.
Snap the key fob casing back together securely.

3. Reprogram the Key Fob (if necessary)

Sit in the driver's seat and close all doors.
Insert the key into the ignition and turn it to the "On" position (do not start the engine).
Press the "Lock" button on the key fob.
Turn the key to "Off" and then back to "On" again.
Repeat this process for a total of 8-10 cycles until the locks cycle to indicate programming mode.
Press the "Lock" and "Unlock" buttons on the key fob to complete the process.

4. Check for Vehicle System Faults

Connect the OBD-II scanner to the vehicle’s diagnostic port.
Scan for any relevant error codes related to the keyless entry or immobilizer system.
If codes are found, follow the manufacturer's guidelines for troubleshooting and resolving those specific issues.