For 1990-2009 cars

Flush the hydraulic brake system if the brake fluid is contaminated by any of the following fluids:

• | Water

• | Improper brake fluid

| A silicone based fluid

• | A petroleum based fluid

• | Mineral oil

If any fluid contaminates the brake fluid, replace all of the rubber parts that were exposed to the contaminated fluid.

Use at least 0.94 L (1 quart) of brake fluid, GM P/N 12377967 (or equivalent DOT 3 brake fluid) in order to flush the hydraulic brake system. Refer to Hydraulic Brake System Bleeding .