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. Engine Oil Filter R & R
1.
Raise and support the vehicle.
2.
Place a drain pan under the oil drain
plug.
3.
Remove the oil pan drain plug.
4.
Allow the oil to drain completely.
5. ...