It's possible that you have a bad ignition switch. Normally, those lights won't turn on unless the ignition is turned to the "Run" position. A bad switch may be allowing current to flow through one or more contacts when it's not supposed to.
Read more: Why_does_the_battery_and_parking_brake_light_stay_on_dim_when_the_car_is_turned_off
The engine does not have to be running to release the parking brake on your 1994 Cadillac Seville. The parking brake can be engaged or released without the engine running.
Low brake fluid in master cylinder? Parking brake not fully released?
Check the level or brake fluid in the master cylinder Make sure parking brake is fully released
On the newer vehicles, you push the parking brake down to release the parking brake. Older vehicles have a release handle on the lower left side of the dashboard.
You could be low on brake fluid.
it may be because there is another problem in the brake system
If the " BRAKE " warning light comes on in your dash either the BRAKE FLUID LEVEL IS LOW in the brake fluid reservoir located in the engine compartment of your 1995 Ford Mustang or the parking / emergency brake is engaged
You're probably low on brake fluid.
Parking brake is on, Brake fluid is low, Hydraulic failure of the brake system.
The 1992 GMC parking brake release lever can be found on the bottom of the dashboard. Pulling the lever towards the passenger compartment will release the parking brake.
It's broke! ======================================================== Or the BRAKE FLUID LEVEL in the brake master cylinder ( located in the engine compartment ) is LOW * the first answer is not mine , the 2nd answer is , Helpfull
Its the parking brake light.