my Ford Explorer's remote start isn't working what could be wrong

Ford Explorer Sixth Generation (2020-present)

Error Codes

1-2 hours

Time

medium

Difficulty

medium

Severity

3 min read

527 words

Problem Statement

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

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 shorts or shocks.

Symptoms

•Remote start button on the key fob does not activate the engine
•No sound or response when attempting to remote start
•Check engine light illuminated on the dashboard
•Vehicle does not start when using the ignition key
•Security system indicator light flashing or illuminated
•Battery warning light on the dashboard

Diagnostic Steps

1
Check the battery level of the key fob to ensure it is functioning properly.
2
Scan the vehicle's OBD-II system for any error codes that may indicate an underlying issue.
3
Inspect the vehicle's battery to ensure it has sufficient charge and is in good condition.
4
Verify that all doors, hood, and trunk are securely closed, as the remote start system requires these to be closed.
5
Test the remote start feature from different distances to rule out range issues.
6
Inspect the vehicle's fuse box for any blown fuses related to the remote start 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

•Key fob battery (e.g., CR2032)
•Any necessary fuses (if blown)

Related Faults

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Symptoms

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

•No sound or response when attempting to remote start

•Check engine light illuminated on the dashboard

•Vehicle does not start when using the ignition key

•Security system indicator light flashing or illuminated

•Battery warning light on the dashboard

Diagnostic Steps

1
Check the battery level of the key fob to ensure it is functioning properly.
2
Scan the vehicle's OBD-II system for any error codes that may indicate an underlying issue.
3
Inspect the vehicle's battery to ensure it has sufficient charge and is in good condition.
4
Verify that all doors, hood, and trunk are securely closed, as the remote start system requires these to be closed.
5
Test the remote start feature from different distances to rule out range issues.
6
Inspect the vehicle's fuse box for any blown fuses related to the remote start system.

Solution

1. Preparation

Gather necessary tools and parts.
Ensure the vehicle is parked in a well-ventilated area.
Disconnect the vehicle battery to avoid electrical issues.

2. Replace Key Fob Battery

Use a flathead screwdriver to gently pry open the key fob.
Remove the old battery and replace it with a new battery of the same type (usually CR2032).
Reassemble the key fob and test the remote start feature.

3. Inspect Vehicle Battery

Use a multimeter to check the voltage of the vehicle battery; it should read around 12.6 volts or higher.
If the voltage is low, charge the battery or replace it if necessary.
Reconnect the battery terminals securely.

4. Check Fuses

Locate the fuse box under the dashboard or hood, referencing the owner's manual for the exact location.
Identify the fuse related to the remote start system and inspect it.
Replace any blown fuses with the correct amperage rating.

5. Verify Security System

Ensure that the security system is not engaged by attempting to start the vehicle with the ignition key.
If the security system indicator light is flashing, reset the system by locking and unlocking the vehicle with the key fob.