This started three nights ago. Brakes work fine as do brake lights but the other light I looked out at my truck in the driveway and the brake lights are on. I go out and play with the brake pedal pull it up and the lights go out and are fine for the night. Same has happened last night and now tonight too. Weather has been cooler the last few nights but no changes in the pedal, brakes, brake fluid or anything else. I did jump my sons car the other day though? Puzzled