If it is the same as the standard GS, then mine played up the first time I clicked it upwards to kill the bike. It then stuck solid. As I was in the middle of Wales and had to get home I just used a fair degree of force and it then yielded, but I do mean pressing to the point of expecting it to break. I was getting desperate as I was at a tea stop surrounded by an amused audience of cruiser riders and it was kill or cure. It has been OK since.