The hydraulic clutch linkage in your vehicle is self-adjusting. This system does not have its own reservoir. It receives fluid from the brake master cylinder reservoir.
See Brakes on for more information.
Chevrolet Cobalt Service & Repair Manual. Tightening Specifications
Year
Component
Torque Ft. Lbs.
AVEO
2010
Bleeder Screw
80 1
Bleeder Valve
53 1
Booster & Support Bracket
18
...