Is the parking brake release?If not release it, or your brake system has a potentially serious hydraulic problem that may make your vehicle unsafe to drive.
The master cylinder reservoir has 2 chambers with 2 sets of electrical contacts. Loss of brake fluid in either reservoir will light the warning light on the dash.
First, check the parking brake lever, handle or pedal. Make sure it is fully released. If that is not the problem, test the brakes by pressing on the brake pedal. If the light comes on only while pressing the pedal, it means one of the hydraulic circuits in the brake system has lost pressure -- probably because of a leak (bad brake hose, leaky disc brake caliper.
Your vehicle may or not be able to stop with this kind of problem, making it unsafe to drive. If the pedal feels unusually low or goes to the floor, DO NOT attempt to drive the vehicle.
Wednesday, November 11th, 2009 AT 8:59 AM