Do not pump the brakes. Just hold the brake pedal down firmly and let antilock work. A slight brake pedal pulsation might be felt or some noise noticed, but this is normal.
Antilock Brake System (ABS)
Braking in EmergenciesChevrolet Cobalt Service & Repair Manual. Ignition Lock, Replace
1.
Lower steering column to lowest position.
2.
Remove steering column upper and lower
trim covers.
3.
Remove theft deterrent control module.
4.
Depress first retainer through loc ...