2004 Pontiac GTO Owner's Manual - Page 136
2004 Pontiac GTO Manual
Page 136 highlights
O/SPEED (Overspeed) Overspeed sets the speed you don't want to exceed. For example, if driving in a 45 mph zone, set OVERSPEED to 45 mph, by tapping the up or down arrows. The overspeed setting is displayed in the left window. When the vehicle speed exceeds the setting, the overspeed warning message and an audible chime warns you that you are speeding. At that time the trip computer automatically shows the overspeed display, allowing you to make adjustments if required. If in the Overspeed preset, press and hold MODE for two seconds. INST FUEL This function shows instantaneous fuel usage in gallons/liters per 60 miles/ kilometers when driving. When speed drops below 6 mph (10 km/h) the usage is shown in gallons per hour. O/Speed P2 (Overspeed Presets) Instead of adjusting overspeed up and down in increments of 3 mph (5km/h), you can set four commonly used speeds. Hold down the MODE button for two seconds when the overspeed display is shown. The display changes from normal overspeed operation to overspeed preset. P1 is the first preset number, with a default setting of 35 mph (60 km/h). Tap the up arrow to see the other three presets. The overspeed preset display has now replaced the normal overspeed display. Tap the MODE button to scroll through the other displays. To change the display back to normal overspeed, hold down the MODE button for two seconds while the overspeed preset display is shown. Underspeed Chime Overspeed provides a chime when your travelling speed exceeds the overspeed value, whereas underspeed provides a chime to indicate when your travelling speed again drops below the overspeed. Dist to Empty Distance to empty is an estimate of how far your current fuel level will last. It is based on your previous fuel usage and is frequently updated. Therefore, as conditions become suited to more economical driving the Dist to Empty may actually increase, for example from city to highway driving. In addition, movement of fuel in the tank can cause the reading to fluctuate when the fuel level is low. 3-38