why does my Ford Explorer Sixth Generation (2020-present) remote start not working

Ford Explorer Sixth Generation (2020-present)

Error Codes

1-2 hours

Time

medium

Difficulty

medium

Severity

3 min read

591 words

Problem Statement

Learn how to diagnose and fix remote start issues in 2020-present Ford Explorer. Step-by-step guide with symptoms, diagnostic steps, and solutions.

Affected Component

Electrical

Estimated Time

1-2 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

•Disconnect the battery before working on electrical systems to avoid short circuits.

Symptoms

•Remote start button on the key fob does not trigger engine start
•Vehicle does not respond with lights flashing or horn sounding when remote start is attempted
•Check engine light illuminated on the dashboard
•Security system indicator light remains on
•Engine cranks but does not start when attempting remote start
•No error messages displayed on the dashboard

Diagnostic Steps

1
Check the key fob battery to ensure it's not depleted.
2
Verify that the vehicle is in a secure location and not obstructed by any physical barriers.
3
Scan the vehicle’s onboard computer with an OBD-II scanner for any error codes.
4
Inspect the remote start system fuse in the fuse box for continuity.
5
Confirm that all doors, the hood, and the trunk are closed properly.
6
Check for any active security system alerts that might disable the remote start feature.
7
Test the remote start feature with a different key fob if available.

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

•OBD-II scanner
•Multimeter
•Flat-head screwdriver

Parts Required

•Key fob battery
•Replacement fuse (if necessary)

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Symptoms

•Remote start button on the key fob does not trigger engine start

•Vehicle does not respond with lights flashing or horn sounding when remote start is attempted

•Check engine light illuminated on the dashboard

•Security system indicator light remains on

•Engine cranks but does not start when attempting remote start

•No error messages displayed on the dashboard

Diagnostic Steps

1
Check the key fob battery to ensure it's not depleted.
2
Verify that the vehicle is in a secure location and not obstructed by any physical barriers.
3
Scan the vehicle’s onboard computer with an OBD-II scanner for any error codes.
4
Inspect the remote start system fuse in the fuse box for continuity.
5
Confirm that all doors, the hood, and the trunk are closed properly.
6
Check for any active security system alerts that might disable the remote start feature.
7
Test the remote start feature with a different key fob if available.

Solution

1. Preparation

Gather necessary tools: OBD-II scanner, multimeter, and a replacement key fob battery if needed.
Ensure the vehicle is parked in a safe, well-ventilated area.
Disconnect the negative battery terminal to reset the vehicle's electrical systems.

2. Key Fob Battery Replacement

Remove the key fob casing using a small flat-head screwdriver.
Replace the old battery with a new one, ensuring the positive side (+) is facing the correct direction.
Reassemble the key fob casing securely.

3. Fuse Inspection and Replacement

Locate the fuse box (usually found under the dashboard or in the engine compartment).
Refer to the owner's manual for the specific fuse related to the remote start system.
Use a multimeter to check for continuity in the fuse. If it's blown, replace it with a new fuse of the same amperage rating.

4. System Reset

Reconnect the negative battery terminal after making all necessary checks and replacements.
Start the vehicle using the ignition key to reset the onboard systems.
Wait a few minutes before attempting to use the remote start feature again.

5. Security System Check

If the security system is active, disarm it using the key fob or the vehicle's alarm system.
Check for any indicators on the dashboard that may suggest an active security lockout.