my Ford F-150 13th Generation (2015-2020) key fob not working what should I do

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

Error Codes

30 minutes to 1 hour

Time

medium

Difficulty

medium

Severity

3 min read

558 words

Problem Statement

Learn how to diagnose and fix a non-working key fob for Ford F-150 (2015-2020). Step-by-step guide with diagnostic procedures and repair instructions.

Affected Component

Electrical

Estimated Time

30 minutes to 1 hour

⚠️ Safety Warnings

Important safety information - read before proceeding

•Ensure the vehicle is in the 'Off' position during programming to avoid accidental starting.

Symptoms

•Key fob buttons do not respond
•Vehicle does not unlock or lock remotely
•Engine does not start when the fob is present
•Battery warning light may illuminate on the dashboard
•Physical key works but electronic functions do not

Diagnostic Steps

1
Check the battery in the key fob for signs of depletion or corrosion.
2
Attempt to unlock the vehicle using the physical key to ensure the locking mechanism is functioning.
3
Scan the vehicle’s onboard diagnostics (OBD-II) for any related error codes.
4
Verify the key fob is within range of the vehicle (at least within 3-5 feet).
5
Inspect the key fob for any visible damage or worn buttons.
6
Reprogram the key fob if necessary, following manufacturer-specific procedures.

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
•Multimeter
•Replacement key fob battery (CR2032 or as specified)

Parts Required

•Replacement key fob battery (CR2032 or as specified)

Related Faults

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Diagnostic Steps

1
Check the battery in the key fob for signs of depletion or corrosion.
2
Attempt to unlock the vehicle using the physical key to ensure the locking mechanism is functioning.
3
Scan the vehicle’s onboard diagnostics (OBD-II) for any related error codes.
4
Verify the key fob is within range of the vehicle (at least within 3-5 feet).
5
Inspect the key fob for any visible damage or worn buttons.
6
Reprogram the key fob if necessary, following manufacturer-specific procedures.

Solution

1. Preparation

Gather tools: small flathead screwdriver, multimeter (optional), and a replacement key fob battery (CR2032 or as specified).
Ensure the vehicle is parked in a safe and secure location.

2. Replace Key Fob Battery

Open the Key Fob
- Use the small flathead screwdriver to gently pry apart the key fob casing.
- Take care not to damage the casing or internal components.
Remove Old Battery
- Carefully note the orientation of the battery.
- Remove the old battery from its compartment.
Install New Battery
- Insert the new battery in the same orientation as the old one.
- Ensure it is seated properly within the compartment.
Reassemble Key Fob
- Snap the key fob casing back together until it clicks into place.
- Ensure there are no gaps between the two halves.

3. Reprogram Key Fob (if necessary)

Enter Programming Mode
- Sit in the driver’s seat with all doors closed.
- Insert the key into the ignition and turn it to the "On" position (do not start the engine).
- Turn the key back to "Off" and remove it.
Program the Key Fob
- Insert the key back into the ignition.
- Turn the key to "On" and then back to "Off" six times within 10 seconds, ending in the "On" position.
- The locks will cycle to indicate programming mode is active.
Activate Key Fob
- Press any button on the key fob within 40 seconds to program it.
- The locks will cycle again to confirm successful programming.
Exit Programming Mode
- Turn the ignition key to the "Off" position to exit programming mode.