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. Relearn Procedures
Keyless Entry Transmitter Or DIC Method
1.
On models with standard ignition
switch, place ignition switch in ON position.
2.
On models with keyless ignition
switch, place ignition switch in ACCY position.
3. ...