My 06 GT shudders for about 5 seconds immediately after I stop at a light in drive with my foot on the brake. It seems to be more pronounced when the car is cold. I have a little over 4,000 miles and all I have done is one oil change. Doesn anyone else have this or heard of it? I am stopping to abruptly? I fear it is some tranny defect or quirk. Any suggestions or REAL experiences would be greatly appreciated.

try this....one morning, let the car warm up(idle) for 15 minutes before driving. then see if you still have the problems.

It is a good idea to let the car warm up enough that the rpm's drop below 1K before putting it in gear. My other car does this if I don't wait the proper 30 seconds of so for pre warm-up.

It might be self diagnostics on the brakes or tcl, is it an automatic check the fluid level .I have got brand new cars that were low on fluids . my gt stick makes a noise in the tranny at first gear if I come out of reverse backing out of drive way but nothing when stopping. a shudder with an automatic might be the tourqe conveter check the fluid level.