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. Exterior Rearview Mirrors
1.
Release retainer located at top of
mirror trim panel.
2.
Lift upper door trim panel upwards
to remove.
3.
Disconnect electrical connector.
4.
Remove mirror mounting nuts, ...