GM Service Manual Online
For 1990-2009 cars only

The speedometer lets you see your speed in both miles per hour (mph) and kilometers per hour (km/h).

The odometer shows how far your vehicle has been driven, in either miles (used in the United States) or kilometers (used in Canada).

The odometer mileage can be checked without the vehicle running. Turn the ignition to RUN and press the trip information button located on the steering wheel. See DIC Controls and Displays for more information.

You may wonder what happens if your vehicle needs a new odometer installed. If the new one can be set to the mileage total of the old odometer, then it must be. But if it can't, then it's set at zero, and a label must be put on the driver's door to show the old mileage reading when the new odometer was installed.