Urgency: Critical
Brake System Warning Light
Stop safely as soon as possible. Continuing to drive risks serious damage or a safety hazard.
What the Brake System Warning Light Means
A red brake warning light on a your car is serious: it points to a problem with the braking system itself — most often low brake fluid, but sometimes a hydraulic fault or a pressure imbalance. Braking performance can be compromised, so treat it as urgent.
Common Causes
- Low brake fluid level
- A hydraulic fluid leak
- Worn brake pads dropping fluid level
- Faulty brake fluid level sensor
- Parking brake not fully released
How to Fix It
- Confirm the parking brake is fully off
- Check the brake fluid reservoir level immediately
- If the pedal feels soft or fluid is low, do not drive — arrange recovery
- Look under the car for fluid leaks at the wheels
- Have the brake system inspected and bled by a technician
Related DTC Codes
| Code | Meaning |
|---|---|
C0035 | Left Front Wheel Speed Sensor Circuit The ABS module has lost a valid signal from the left front wheel speed sensor. |
C0110 | ABS Pump Motor Circuit Malfunction The ABS hydraulic pump motor circuit has failed, disabling anti-lock function. |