Emergency Brake Dash Board Light

Problem: the emergency parking brake dash board light - when the car is started the light comes on and then goes off as it should. But, when the car is put in gear, the light comes back on. I have checked to be sure the emergency brake is off and I have had the brakes themselves checked for wear. All is OK. So, how can I make the dash board go off when the car is put in gear?

Did you check the brake fluid level? The light will come on if the brake fluid is low.