Chevrolet 2005 Cobalt Owner's Manual page 290

3. Remove the nut that holds down the spare tire. See
Compact Spare Tire on page 5-80
4. Remove the spare tire by placing your hands at the
four and eight o'clock positions. Gently pull it up
and out of the trunk.
5. Remove the wing nut that holds the jack and
remove the jack and wheel wrench.
5-72
Uplevel Models
1. Open the trunk. See Trunk on page 2-9 for more
information.
Uplevel Model
2. Lift the trunk liner and place the plastic hook in the
lip of the trunk lid.