Will Low Brake Fluid Cause Abs Light To Come On?

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In modern vehicles, the Anti-lock Braking System (ABS) is a crucial safety feature that prevents the wheels from locking up during sudden braking. If the ABS light illuminates on your dashboard, it could indicate a problem with the system. One common question that arises is whether low brake fluid can cause the ABS light to come on. In this article, we will explore this topic and provide you with the necessary information.

How ABS Works

The ABS system relies on sensors to detect when a wheel is about to lock up. It then modulates the brake pressure on that particular wheel, ensuring that it continues to rotate while you maintain control over the vehicle. This prevents skidding and allows you to steer safely during emergency braking situations.

ABS Light and Low Brake Fluid

While low brake fluid can cause the brake warning light to come on, it typically does not trigger the ABS light. The ABS light usually indicates a fault within the ABS system itself, such as a malfunctioning sensor, a damaged wiring harness, or a faulty ABS module. These issues need to be diagnosed and repaired by a qualified mechanic.

Signs of Low Brake Fluid

Low brake fluid levels can cause several symptoms that should not be ignored. These include:

  • A soft or spongy brake pedal
  • Poor braking performance
  • Brake pedal sinking to the floor
  • Brake fluid leaks
  • ABS warning light (not the ABS light)

Importance of Regular Brake Fluid Checks

Checking your brake fluid regularly is essential for maintaining your vehicle’s braking performance and safety. Low brake fluid levels can lead to decreased braking power, longer stopping distances, and potential brake failure. It is recommended to inspect the brake fluid level at least once a month and top it up if necessary.

Other Possible Causes of ABS Light

While low brake fluid is not a common cause of the ABS light coming on, there are other potential reasons for this issue. These include:

  • Malfunctioning ABS sensor
  • Worn-out brake pads
  • Broken ABS ring or reluctor
  • Faulty ABS control module
  • Electrical issues in the ABS system


If your ABS light is illuminated, it is unlikely to be caused by low brake fluid. The ABS light generally indicates a problem within the ABS system itself. However, it is crucial to address any issues with low brake fluid promptly, as it can affect your vehicle’s overall braking performance. Regular maintenance, including brake fluid checks, can help prevent potential problems and ensure your safety on the road.


This article is for informational purposes only and should not be used as a substitute for professional advice. Always consult with a qualified mechanic or technician for accurate diagnosis and repairs.