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What could be the cause of my brake light coming on if brakes work and fluid leaking a gmc 88 pickup?

There are a few reasons why your brake light might be coming on even though your brakes appear to be working properly and there's no visible fluid leak:

1. Low Brake Fluid Level: Check the brake fluid reservoir to ensure it is filled to the recommended level. If the level is low, it can cause the brake light to come on.

2. Faulty Brake Fluid Level Sensor: The brake fluid level sensor might be malfunctioning, causing the light to come on even though the fluid level is adequate.

3. Faulty Brake Pressure Sensor: The brake pressure sensor might be defective, causing the brake light to come on even though the brakes are working properly.

4. Electrical Issues: There might be an electrical problem in the brake system, such as a faulty wiring connection or a short circuit, causing the brake light to come on.

5. Sticking Brake Light Switch: The brake light switch might be stuck in the "on" position, causing the light to stay illuminated even when the brakes are not applied.

6. Worn Brake Pads or Shoes: Even though your brakes may feel functional, excessive wear on the brake pads or shoes can trigger the brake light.

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