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how to fix the brake warning light on my Ford F-150 13th Generation (2015-2020) - Ford F-150
Home/Cars/Ford/F-150/13th Generation (2015-2020)/how to fix the brake warning light on my Ford F-150 13th Generation (2015-2020)

how to fix the brake warning light on my Ford F-150 13th Generation (2015-2020)

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

Error Codes
2-4 hours
Time
medium
Difficulty
high
Severity
Navigation
ProblemSymptomsDiagnosisSolution
ProblemSymptomsDiagnosisSolution
4 min read
603 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 F-150 (2015-2020). Step-by-step guide with diagnostic steps and repair instructions.

Affected Component
Brakes
Estimated Time
2-4 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

  • •Disconnect the battery before working on electrical components
  • •Allow the brake system to cool before inspection or repairs

Symptoms

  • •Brake warning light illuminated on the dashboard
  • •Soft or spongy brake pedal feel
  • •Reduced braking performance
  • •Brake fluid leakage underneath the vehicle
  • •Increased stopping distance

Diagnostic Steps

  1. 1
  2. 2
  3. 3
  4. 4
  5. 5
  6. 6

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
  • •Wrench set
  • •Multimeter
  • •Brake bleeder kit

Parts Required

  • •Brake fluid (DOT 3 or DOT 4)
  • •Brake pads
  • •Brake rotors
  • •Brake lines (if needed)
  • •Brake warning switch (if needed)

Additional Information

Affected Component
Brakes
Estimated Time
2-4 hours
Difficulty
medium
Severity
high
Tools Required
5 items
Parts Required
5 items

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Solution
1. Preparation
  • Gather necessary tools and parts.
  • Ensure the vehicle is parked on a level surface and the ignition is off.
  • Disconnect the battery before starting any electrical work.
2. Check Brake Fluid Level
  • Open the hood and locate the master cylinder reservoir.
  • Remove the cap and check the brake fluid level.
  • If low, add the recommended brake fluid type (DOT 3 or DOT 4) until it reaches the full mark.
3. Inspect Brake Lines and Hoses
  • Visually inspect all brake lines and hoses for leaks and damage.
  • If leaks are detected, replace the affected lines or hoses using the following steps:
    • 3a. Remove the old line: Use a wrench to disconnect the line from the fittings.
    • 3b. Install a new line: Thread the new brake line into the fittings and tighten securely.
    • 3c. Bleed the brake system: After replacement, bleed the brakes to remove any air from the system.
4. Check Brake Pads and Rotors
  • Remove the wheel to access the brake assembly.
  • Inspect the brake pads for thickness; replace if worn below 3mm.
  • Check the rotors for scoring or excessive wear; replace if necessary.
    • 4a. Remove old pads and rotors: Use a socket set to remove caliper bolts and slide out the pads and rotors.
    • 4b. Install new pads and rotors: Position new rotors and pads, then reassemble the caliper.
5. Inspect Brake Warning Switch
  • Locate the brake warning switch, usually near the brake pedal.
  • Disconnect the wiring harness and use a multimeter to test the switch.
  • If defective, replace the switch:
    • 5a. Remove the old switch: Unscrew the switch from its mount.
    • 5b. Install the new switch: Screw the new switch into place and reconnect the wiring.