To lock the driver door from outside the vehicle, turn the key clockwise. Turn it counterclockwise to unlock.
The Remote Keyless Entry (RKE) transmitter can also be used to lock or unlock the doors.
From the inside, use the manual lock knobs on each door or use the power door locks.
Power Door Locks

This vehicle may have power door locks.
The controls are located
on the driver and front
passenger door armrests.
: Press to unlock the
doors.
: Press to lock the doors.
For more information see:
- Door Locks.
- Power Door Locks.
- Remote Keyless Entry (RKE) System Operation.
Remote Vehicle Start
Trunk ReleaseChevrolet Cobalt Owners Manual. Removing the Flat Tire and Installing the Spare Tire (SS Model)
The SS Model has larger performance brakes than the
base model. The compact spare tire will not clear the
front brakes.
Do not use the compact spare tire in the event of a front
flat tire.
You must use the rear tire to replace the front flat tire.
To change the rear road tire:
Rear Tire Chang ...