2010 cadillac cts Engine type: unknown use mouse pointer to steer. SPACE - Accelerator B - Brake H - Horn Down Arrow - up shift Up Arrow - down shift 4 - P 5 - R 6 - N 7 - D G - Start up F - attempt start D - Key on S - Key off R - Refuel left arrow is for the left turn signal right arrow is for the right turn signal P turns on the hazards O cancels the hazards or the turn signals or when the steering wheel lines up straight, it cancels the left or right turn signals. Here is how to use the information display. Simply press the number 0 key to cycle through your options, and 9 to clear messages.