2009 Chevrolet Corvette Owner's Manual - Page 160

The HUD controls are located to the left of the steering wheel. Be sure to continue scanning the displays, controls and driving environment just as you would in a vehicle without HUD. If you never look at the instrument panel cluster, you may miss something important, such as a warning light. Under important warning conditions, the CHECK GAGES warning will illuminate in the HUD. View your Driver Information Center (DIC) for more information. To adjust the HUD so it can be seen properly, do the following: 1. Start the engine and press the HUD dimmer control all the way up by pressing the (+) button. The brightness of the HUD image is determined by the light conditions in the direction the vehicle is facing and where you have the HUD dimmer control set. If you are facing a dark object or a heavily shaded area, the HUD may anticipate that you are entering a dark area and may begin to dim. It is possible for sunlight to enter the HUD making it difficult to see the image. The display will return to normal when the sunlight is no longer entering the HUD. 3-22