This is only a trading capability - no recommendation !!!
While january`17 maybe i`ll confirm or change my opinion :)
Buying/Selling or even only watching is always your own responsibility ...
GM, being a high beta stock, really moves, when it does and I think we could see a pullback here before more upside, so it's a good idea to either sell calls against your longs, or simply taking profits and waiting to reenter longs lower, against support.