how to fix the brake warning light on my Ford Explorer Fifth Generation (2011-2019)

Ford Explorer Fifth Generation (2011-2019)

Error Codes

2-4 hours

Time

medium

Difficulty

critical

Severity

4 min read

608 words

⚠️ Safety Warning

This issue requires immediate attention. If you are not experienced with automotive repairs, consult a professional mechanic. Working on critical systems can be dangerous.

Problem Statement

Learn how to diagnose and fix the brake warning light issue in Ford Explorer Fifth Generation (2011-2019). Step-by-step guide with symptoms and solutions.

Affected Component

Brakes

Estimated Time

2-4 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

•Ensure the vehicle is securely lifted and supported before working under it.
•Disconnect the battery before working on electrical components, such as the brake light switch.

Symptoms

•Brake warning light illuminated on the dashboard
•Reduced brake performance or spongy brake pedal
•Brake fluid level low
•Noise when braking (squeaking or grinding)
•ABS warning light also illuminated
•Vehicle pulling to one side when braking

Diagnostic Steps

1
Inspect brake fluid level in the master cylinder reservoir.
2
Check for any visible leaks in the brake lines or around the brake components.
3
Scan the vehicle’s computer for any Diagnostic Trouble Codes (DTCs) related to the braking system.
4
Inspect brake pads and rotors for wear and damage.
5
Test the brake pedal for firmness and responsiveness.
6
Verify the functionality of the brake light switch.

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
•Socket set
•Brake bleeder kit
•Torque wrench
•Screwdrivers

Parts Required

•Brake pads (if worn)
•Brake rotors (if worn)
•Brake fluid (DOT 3 or DOT 4)

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Diagnostic Steps

1
Inspect brake fluid level in the master cylinder reservoir.
2
Check for any visible leaks in the brake lines or around the brake components.
3
Scan the vehicle’s computer for any Diagnostic Trouble Codes (DTCs) related to the braking system.
4
Inspect brake pads and rotors for wear and damage.
5
Test the brake pedal for firmness and responsiveness.
6
Verify the functionality of the brake light switch.

Solution

1. Preparation

Gather necessary tools and parts.
Park the vehicle on a flat surface and engage the parking brake.
Wear safety glasses and gloves for protection.

2. Check Brake Fluid Level

Open the hood and locate the brake master cylinder.
Inspect the fluid level; it should be between the "MIN" and "MAX" marks.
If low, top off with the manufacturer-recommended brake fluid (DOT 3 or DOT 4 as specified).

3. Inspect Brake Components

Brake Pads and Rotors:
- Remove the wheel using a socket set.
- Inspect brake pads for thickness (minimum thickness should be 3mm).
- Check rotors for scoring or warping. Replace if necessary.
Brake Lines:
- Visually inspect all brake lines for leaks, corrosion, or damage.
- Replace any compromised lines immediately.

4. Replace Worn Components

If brake pads are worn, replace them:
- Remove the caliper bolts and slide the caliper off.
- Remove the old pads and install new ones.
- Reinstall the caliper and torque the bolts to the manufacturer specifications.
If rotors are worn, replace them:
- Remove the caliper as per the previous step.
- Remove the caliper bracket if necessary and slide off the rotor.
- Install the new rotor and reassemble the caliper.

5. Test and Bleed the Brakes

After any component replacements, bleed the brake system:
- Start at the wheel farthest from the master cylinder (usually the right rear).
- Use a brake bleeder tool or have an assistant pump the brake pedal while you open the bleeder valve.
- Close the valve before the pedal reaches the floor.
- Repeat until no air bubbles are visible in the fluid.
Repeat for each wheel, moving closer to the master cylinder.