2009 GMC Acadia Owner's Manual - Page 444

7. Select the route preference (Fastest, Shortest, or Other). The system calculates and highlights the route. 8. Select the Start Guidance screen button. The fastest route will automatically begin if the car starts moving forward. See "Preset Destination" under Destination on page 2-13 for more information. Guidance Volume To adjust the volume of voice guidance prompts: 1. Press the MENU hard key to enter the menu options, then press the MENU key repeatedly until Nav is selected or select the Nav screen button. 2. Select the Voice Prompt screen button. 3. Select the On screen button if voice guidance is not on. 4. Select the + (plus) or - (minus) screen buttons to increase or to decrease the volume of the voice prompts. The system responds with the adjusted voice level. See "Voice Prompt" under Configure Menu on page 2-27 for more information. Turning the O (volume) knob during a voice or navigation prompt also changes the volume. Canceling Guidance Guidance is canceled once you arrive at your final destination. To cancel guidance prior to arrival at the final destination: 1. Press the DEST hard key. 2. Select the Cancel Guidance screen button. 3. A pop-up confirmation appears. Select OK to cancel guidance or Cancel to cancel the request. Cleaning the Video Screen Use a soft clean cotton cloth dampened with clean water. 1-12