What Causes the Parking Brake Warning Light to Illuminate?

[NorahRose]

There are typically three scenarios that cause the parking brake warning light to illuminate: 1. The handbrake is not released or not fully released. This usually occurs when some drivers forget to lower the handbrake or fail to release it completely, triggering the warning light. 2. If the handbrake possibility is ruled out and the warning light remains on, the driver should check the brake fluid. Leakage or insufficient brake fluid may cause the parking brake light to turn on. 3. Another possible reason is thinning brake discs or foreign objects lodged in the brake pads. Since the brake disc surface becomes uneven, it produces sharp metallic friction sounds when braking. This condition can also lead to insufficient braking force, longer braking distances, and softer brake pedal feel.