WARNING:
Leaving children, helpless adults, or pets in a
vehicle with the windows closed is dangerous.
They can be overcome by the extreme heat and suffer permanent injuries or even death from heat stroke. Never leave a child, a helpless adult, or a pet alone in a vehicle, especially with the windows closed in warm or hot weather.
Chevrolet Cobalt Service & Repair Manual. Front Side Marker Lamp Bulb, Replace
1.
Remove headlamp bracket assembly.
2.
Rotate marker lamp bulb harness electrical
connector (1) counterclockwise to unlock from headlamp assembly,
Fig. 1.
3.
Remove front side marker lamp bulb
(2) ...