GM Service Manual Online
For 1990-2009 cars only

The trip odometer can tell you how far your vehicle has been driven since you last set the trip odometer to zero.

While the engine is running, press the reset button, located to the right of the trip odometer, to toggle between the trip odometer and the regular odometer. Holding the reset button for two seconds while the engine is running and the trip odometer is displayed, will reset it.

To display the odometer reading with the ignition off, press the reset button.

The hourmeter gage is accessed through the trip odometer, for more information see Hourmeter Gage .