For service and parts needs, visit your dealer/retailer.
You will receive genuine GM parts and GM-trained and supported service people.
Genuine GM parts have one of these marks:

Accessories and ModificationsChevrolet Cobalt Owners Manual. Instrument Panel Cluster
The instrument panel cluster is designed to show how the vehicle is running.
It shows how fast the vehicle is going,
about how much fuel is left in the tank, and many other things needed to drive
safely and economically.
United States SS, Manual Transmission Cluster shown, Canada, Base and
...