The tachometer displays the engine speed in revolutions per minute (rpm).
Notice: If the engine is operated with the tachometer 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.
Speedometer and Odometer
Safety Belt RemindersChevrolet Cobalt Owners Manual. Boost Gauge
United States
Canada
If equipped, this gauge is located near the driver side of
the instrument panel cluster.
This gauge indicates vacuum during light to moderate
throttle and boost under heavier throttle.
This gauge displays the air pressure level in the intake
manifold before it enters ...