I have a 1992 Chevrolet lumina and I had the same problem. what that means is your brake fluid is at a low level so check that.
Check your Brake fluid. If the fluid is low then will make the Brake light go on. anothe thing is you might be needing new brakes soon..
Make sure the parking brake is completely released. If the parking brake is on the Highlights go off.
The parking brake is set by pushing, with your foot, the parking brake pedal on the left side of floor area. It is released by pushing with foot again.
Do you have your parking brake on?
You might have an ABS problem or a problem with the brake master cylinder. Check the fluid level in the brake reservoir.
A stuck parking brake could be caused by several things. The brake cable that operates that brake could be stuck, or the mechanism could be stuck at the wheel. The wheel will need to be removed and the cable and emergency brake arms will have to be checked.
Chevrolet Blazer parking brake can be adjusted with the adjustment screw on the parking brake pad. The parking brake can also be adjusted with the parking brake cable.
how do you adjust parking brake
Make sure your brake fluid is full!! I had this problem on my 96 it was the emergency back pedal make sure it is pulled back all the way up
push the parking brake ,before starting the engine
You can adjust your parking brake by turning the parking brake adjustment bolt. The parking brake adjustment bolt is located on the parking brake pad assembly.
Parking brake