2013 GMC Sierra 3500 HD Denali Engine type: 6.6 L Duramax Diesel V8 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 W W - Hard 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. 1- Trip Meter 2- Fuel Range 0 shows the odometer. 6-8 shows messages The -'s mean that 2-5 is unavalible and is still being worked on.
