you have to start it up in gear , and you have to hold the brake for it will take off. Then it is back to normal shifting fine .
clutch problems.......clutch works fine then it doesn't and you can't shift gear on 2006 Chevrolet HHR
Hydraulic clutch problem. Master cyl. full of fluid? If so, possible master or slave cylinder trouble.
Could be a shift fork, pressure plate maybe, or a rod adjustment. does it ever refuse to shift while ur driving?