Okay I have a weird issue with my arrow light I'm not sure if it's a common problem with the 850 or what but when I first crank my car when it's not been warmed up yet as soon as I Finnish turning the key over the arrow light comes on for like one second then cuts right back off and I've heard that it means there's a fault in the transmission if it's flashing but my car drives smooth also it never comes on while driving and there's no check engine light/codes so I'm just confused and I don't know if maybe it could mean something else is bad so please if you guys have any idea let me know thanks