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 Service & Repair Manual. Window Regulator R&R
Front
Coupe
Manual
1.
Remove interior trim panel.
2.
Remove water deflector.
3.
Move window to full up position and
secure in place with tape.
4.
Remove side door window regulato ...