If your vehicle has power locks, it has a programmable automatic door unlock feature.
The doors can be programmed through the Driver Information Center (DIC) to automatically unlock several ways. See DIC Vehicle Personalization for more information.
Chevrolet Cobalt Service & Repair Manual. Ball Joint, Replace
Front
1.
Remove control arm.
2.
Secure control arm in a suitable vise.
3.
Drill out three rivets retaining ball
joint to lower control arm. Install a 1/8 inch bit in order to make
a pilot hole through ...