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

488 words

Problem Statement

Learn how to troubleshoot and fix a non-functioning key fob for your 2015-2020 Ford F-150. Step-by-step guide with diagnostic steps and solutions.

Affected Component

Electrical

Estimated Time

30 minutes to 1 hour

⚠️ Safety Warnings

Important safety information - read before proceeding

•Disconnect the vehicle's battery if performing any electrical work beyond the key fob replacement.

Symptoms

•Remote key fob buttons not responding
•Dashboard warning light for the key fob battery
•Inability to unlock/lock doors remotely
•Engine not starting when fob is used
•Physical unlocking of doors requires using the key blade

Diagnostic Steps

1
Check the battery in the key fob for proper voltage using a multimeter.
2
Inspect the key fob for physical damage or signs of wear.
3
Try reprogramming the key fob according to the owner's manual instructions.
4
Verify that the vehicle's battery is charged and functioning adequately.
5
Check for any error codes using an OBD-II scanner that may indicate issues with the vehicle's keyless entry 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

•Flathead screwdriver
•Multimeter

Parts Required

•CR2032 battery

Related Faults

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Diagnostic Steps

1
Check the battery in the key fob for proper voltage using a multimeter.
2
Inspect the key fob for physical damage or signs of wear.
3
Try reprogramming the key fob according to the owner's manual instructions.
4
Verify that the vehicle's battery is charged and functioning adequately.
5
Check for any error codes using an OBD-II scanner that may indicate issues with the vehicle's keyless entry system.

Solution

1. Preparation

Gather necessary tools including a flathead screwdriver, multimeter, and replacement battery (CR2032).
Ensure the vehicle is in a secure environment and the ignition is off.

2. Battery Replacement

Remove the Key Fob Cover:
- Use a flathead screwdriver to carefully pry open the key fob cover at the designated notch without damaging the casing.
Replace the Battery:
- Remove the old battery from the fob and dispose of it properly.
- Insert the new CR2032 battery with the "+" side facing up.
Reassemble the Key Fob:
- Align the two halves of the key fob and press them together until you hear a click indicating they are securely closed.

3. Reprogram the Key Fob (if necessary)

Enter Programming Mode:
- Sit in the vehicle with all doors closed and unlocked.
- Insert the key into the ignition and turn it from OFF to RUN eight times within ten seconds, ending in the RUN position. The locks should cycle to confirm entry into programming mode.
Program the Key Fob:
- Press any button on the key fob within 20 seconds. The locks should cycle again.
- Repeat for additional key fobs if necessary.

4. Test the Key Fob

Step outside the vehicle and test the key fob functions (lock and unlock doors, start the engine).