Why does my Chevrolet UVA horn always gets fused Even

Why does my Chevrolet UVA horn always gets fused? Even after replacing horns at the dealer also, after a week it stops working again. this has been running for the last 3/4 months and the dealer is not able to fix it. the same problem lies with the calliper pin sound in the right front wheel. I've changed the calliper pin at the dealer so many times, but the sound again comes out after 3/4 days. Just 4 days back, I replaced the Whole assembly. But still the sound comes out. Should I approach the consumer Court? I am really frustrated. My car is 3 years and 8 months old. Help.