What does green light with arrow pointing to it mean it is on bottom left hand corner does it mean that i have ignition turned on or is there a problem

No i havent got manual will have to get one , the dealers are saying its a cruise control symbol but not sure,they say its a short but they dont sound very convincing i spoke to mate with 07 FXSTI and he has manual and cant see sysmbol its a mystery if anyone can help id be rapt Thanks