well my sunroof broke again. a peice of plastic broke off of the peice that goes in the track. why does gm have to use plastic there??!

 

dunno got mine replaced and works fine. When you get it replaced you need to make sure that they calibrate it correctly if it is too far in it will break too far out it will leak or get sucked out it should be just about flush so it works right without breaking. Also dont let them tighten it a lot cus it needs to give a lil bit so pieces dont snap