1996 Buick Riviera Owner's Manual - Page 123

Tachometer Your'speedometerlets you see your speed in both miles how (kmh). Your per hour (mph) and kilometers per odometer shows how far your vehicle has been .driven, in either miles (used the United States) kilometers in or (wed in Canada). Trip Odometer The tachometer tells you how fast the ehgine is mnriing. It displays engine speed .in revolutiolis per .minute (rpm). A trip odometercan tell you how many, miles have you driven since-you last set it back to zero. 7 T reset thetrip odometer, O push the TRIP RESET button. I NOTICE: Do not operate. the engine with the tachometer in the.redarea, or engine damage may occur.