GM Service Manual Online
For 1990-2009 cars only

Object Number: 806945  Size: A2

The tachometer displays the engine speed in revolutions per minute (rpm).

Notice: If the engine is operated while the tachometer is in the shaded warning area, the vehicle could be damaged, and the damages would not be covered by the vehicle warranty. Do not operate the engine with the tachometer in the shaded warning area.