When driving, I'm right on the dot, up60 down35. The automatic controller on the spoiler does not beep, I don't think it should, but when I choose to put it up, or lower it with the manual button it is random, the beeping does not always sound. I'll keep looking into it, maybe it's a fuze. But I know the beeper does work, it beeps when I leave the lights on and the other general **** it beeps for.