In addition to the trunk release button on the Remote Keyless Entry (RKE) transmitter, the trunk can be opened from inside the vehicle by pressing the remote trunk release button. This button is located inside the driver storage compartment, on the left side of the instrument panel.
See Trunk.
Door Locks
WindowsChevrolet Cobalt Service & Repair Manual. Fuel Pump Replacement
1.
Relieve fuel system pressure.
2.
Drain fuel tank.
3.
Raise and support vehicle.
4.
Disconnect fuel pump module fuel feed
and return line quick connect fittings from fuel filter ...