Brake Turn light problems-HELP on 2005 Chevrolet Silverado 2500 HD

When I turn on a turn signal both lights on the dash come on and all the lights on rear of the truck flash and when I hit the brake pedal the stop but my brake lights are very dim. Also when I am using cruise control and hit a turn signal it kicks the cruise out. Any suggestions?

1 answer
If you've replaced any bulbs recently, double check that they are the correct bulbs. Check the ground wires for the taillights.