CHEVROLET 1999 Corvette - Manual (Page 140)

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You can use the Driver Information Center (DIC) to
display more detailed fuel information. Each time you
press FUEL, one of the following will appear in the
Driver Information Center (DIC).
D AVERAGE: The fuel economy calculated for the
current tank of fuel, or since you last reset
the display.
D INST: The fuel economy calculated for your current
driving conditions.
D RANGE: The distance you can drive
before refueling.
D BLANK: The fuel gage is displayed alone.
You should reset the fuel information display every time
you refuel. To reset the display, press FUEL until
AVERAGE appears. Then, press RESET on the Driver
Information Center (DIC).
Head - Up Display (Option)
CAUTION:
If the HUD image is too bright, or too high in
your field of view, it may take you more time to
see things you need to see when it’s dark outside.
Be sure to keep the HUD image dim and placed
low in your field of view.
If your vehicle is equipped with the Head - Up Display
(HUD), you can see some of the driver information that
appears on your instrument cluster.