how to fix my Ford F-150 13th Generation (2015-2020) that won't unlock with the key fob

Ford F-150 13th Generation (2015-2020)

Error Codes

30 minutes to 1 hour

Time

medium

Difficulty

medium

Severity

3 min read

504 words

Problem Statement

Learn how to fix a key fob that won't unlock your Ford F-150 (2015-2020). Step-by-step guide with diagnostic steps and repair instructions.

Affected Component

Electrical

Estimated Time

30 minutes to 1 hour

⚠️ Safety Warnings

Important safety information - read before proceeding

•Be cautious when using any tools to avoid damaging the key fob.

Symptoms

•Key fob buttons unresponsive
•Vehicle does not respond to key fob commands
•No sound or indication when pressing key fob buttons
•Key fob warning light not illuminated
•Manual unlocking works with physical key

Diagnostic Steps

1
Check the battery in the key fob for corrosion or depletion.
2
Replace the key fob battery with a new one.
3
Test the key fob functionality using another key fob (if available).
4
Inspect the vehicle's receiver and wiring for damage or disconnection.
5
Scan the vehicle's computer system for any fault codes related to the keyless entry system.
6
Verify the key fob programming with the vehicle's onboard system.

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 screwdriver
•OBD-II scanner

Parts Required

•Key fob battery (CR2032 or specific to your fob)

Related Faults

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Diagnostic Steps

1
Check the battery in the key fob for corrosion or depletion.
2
Replace the key fob battery with a new one.
3
Test the key fob functionality using another key fob (if available).
4
Inspect the vehicle's receiver and wiring for damage or disconnection.
5
Scan the vehicle's computer system for any fault codes related to the keyless entry system.
6
Verify the key fob programming with the vehicle's onboard system.

Solution

1. Preparation

Gather tools: a new key fob battery (CR2032 or specific to your fob), small screwdriver, and possibly an OBD-II scanner if programming is needed.
Ensure you are in a well-lit area and the vehicle is in park.

2. Replace Key Fob Battery

Open the key fob: Use a small screwdriver to gently pry apart the key fob casing.
Remove the old battery: Take note of the battery orientation and replace it with a new battery.
Reassemble the key fob: Snap the key fob casing back together securely.

3. Test Key Fob Functionality

Stand near the vehicle: Ensure you are within the effective range of the keyless entry system.
Press the unlock button: Check if the vehicle responds by unlocking the doors.
Try the lock button: Verify that the lock function operates as expected.

4. Program Key Fob (if necessary)

Enter the vehicle and close all doors.
Insert the key into the ignition and turn to the 'On' position (not starting the engine).
Turn the key from 'On' to 'Off' eight times within 10 seconds (ending in 'On').
The locks will cycle to indicate programming mode is active.
Press any button on the key fob to program it. The locks will cycle again to confirm.
Turn the ignition to 'Off' to exit programming mode.