Got 2014 Sierra All Terrain in sept 13.
Healights are terrible to the point of dangerous. Far too dim. Had to install after market off-road lites. GM would not acknowledge problem.
4 wheel drive would not engage while stuck in snow high range. Engine would not accelerate.
Transmission clunks and shifts strangely. Seems to hang up between gears at low speed acceleration and slips.
Truck has already been recalled 3 times. Now it is leaking ant-freeze and will heed to go back to dealer.
It will be a Dodge Ram next time.