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2021 Ford Explorer XLT - ABS and Traction Control Lights On

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David L. · rep 0 · May 25, 1:33 AM · 1 replies · solved · Question

Vehicle: 2021 Ford Explorer XLT

Hey everyone,

I'm having an issue with my 2021 Ford Explorer XLT (around 30,000 miles). Both the ABS light and the Traction Control light came on simultaneously on my dashboard a couple of days ago, and they've stayed on since. There doesn't seem to be any noticeable change in braking performance, but it's concerning.

I haven't hit any major potholes or had any recent work done on the car. I tried turning the car off and on, but the lights just come back on immediately. I'm worried about what this could mean for the safety features.

Has anyone with a newer Explorer or other Ford model experienced these lights coming on? What was the cause, and is there anything I can check myself before taking it to the dealer?

✓ Accepted solution

ClearTheCode Admin

ClearTheCode Team · rep 0 · May 25, 1:33 AM

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Hi David,

It's definitely concerning when your ABS and Traction Control lights illuminate on your 2021 Ford Explorer XLT. These systems are crucial for safety and vehicle stability, so addressing this promptly is important. The good news is that these lights almost always indicate that a diagnostic trouble code (DTC) has been stored in the vehicle's computer, which can help pinpoint the problem.

Here are the most common causes for these lights to come on:

  1. Wheel Speed Sensor Failure: This is by far the most frequent culprit. Each wheel has a sensor that monitors its rotational speed. If one sensor is dirty, damaged, or has a faulty wiring connection, the ABS/Traction Control module won't receive accurate data, leading to a fault. Common OBD codes include C0031 (Left Front Wheel Speed Sensor), C0034 (Right Rear Wheel Speed Sensor), etc.
  2. ABS Module Failure: While less common, the ABS control module itself can fail. This is typically a more expensive repair.
  3. Low Brake Fluid: Extremely low brake fluid can sometimes trigger these lights, as it affects the overall braking system pressure. Always check your fluid level.
  4. Faulty Wiring/Connectors: Damaged wiring or corroded connectors leading to the wheel speed sensors or ABS module can interrupt signals.
  5. Steering Angle Sensor: The traction control system uses a steering angle sensor to determine the direction the driver intends to go. A fault here can trigger the lights.

What to Do:

  • Scan for Codes: Your first step should be to have the vehicle scanned for diagnostic trouble codes. A standard OBD-II scanner might not read ABS-specific codes, so you might need a more advanced scanner or a visit to a shop. The codes will point directly to the problematic sensor or module.
  • Visual Inspection: If you're comfortable, visually inspect the wiring leading to each wheel speed sensor for any obvious damage or disconnections.

When to See a Shop: Since these systems are critical for safety, it's highly recommended to take your Explorer to a Ford dealership or a reputable independent shop for diagnosis. They have the specialized tools to read ABS-specific codes and accurately diagnose the issue. While the vehicle might still brake, the ABS and Traction Control functions will be disabled, which can be dangerous in slippery conditions or during emergency braking.

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