GM Service Manual Online
For 1990-2009 cars only

The speedometer shows the vehicle's speed in both miles per hour (mph) and kilometers per hour (km/h).

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

Tahoe Police Package and Special Service Package

Your speedometer lets you see your speed in both miles per hour (mph) and kilometers per hour (km/h). Your odometer shows how far your vehicle has been driven, either in miles (United States) or kilometers (Canada).

The speedometer for the Tahoe Police Package (SEO PPV) displays a maximum vehicle speed of 140 mph (225 km/h). The speedometer for the Tahoe Special Service Package (SEO 5W4) displays a maximum vehicle speed of 120 mph (193 km/h). The Tahoe Special Service Package is not designed nor intended for use in high-speed emergency vehicle operations.