Why does the handbrake light stay on when the handbrake is released?
2 Answers
The reasons why the handbrake light stays on after releasing the handbrake: 1. The handbrake may not have been fully released—sometimes the handbrake is released but does not press the switch. In this case, the driver should repeatedly check whether the handbrake is properly engaged. 2. Lack of brake fluid can also cause the handbrake light to illuminate. When the brake fluid level falls below the safety line, it may trigger a constant handbrake light or even a false alarm. 3. Worn brake pads or foreign objects stuck in the brake pads can lead to the handbrake light staying on. Since the brake disc surface becomes uneven, sharp metal friction noises may occur when braking. This condition can also result in insufficient braking force, longer braking distances, and softer brake pedal feel. Replacing the brake pads will resolve the issue.
Yesterday when I drove out, I noticed the handbrake warning light stayed on even after releasing it, so I rushed to the repair shop for a check. The mechanic told me the most common cause is insufficient brake fluid—the reservoir in the engine bay has Min-Max markings, and if the level drops below the Min line, it triggers the warning. Another frequent issue is a stuck handbrake switch, like a failed spring at the base of the lever or dirt/sand buildup. I specifically asked about solutions: if the brake fluid is low, top it up with the same type; if the switch is stuck, try pulling the handbrake back and forth a few times. But the mechanic stressed not to ignore such problems—worn brake pads reaching their limit can also trigger the same warning light, and professional equipment is needed for a safe diagnosis. Last time, my neighbor delayed fixing it and almost rear-ended someone during an emergency stop. Now, repair shops recommend getting it checked within half an hour in such cases.
