1994 GMC Safari Owner's Manual - Page 113

Speedometer and Odometer Standard Cluster Digital Cluster H Your speedometer lets you see your speed in both miles per hour(mph) and kilometers per hour (kmdh). Yourodometer shows how far your vehicle has been driven, in either miles (used in the U.S.) or kilometers (used in Canada). Tamper Resistant Odometer ClusterCluster Digital Standard Your odometer is tamper resistant. The odometer will show silver lines between the numbersif someone tries to turn it back.