Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSCHEVROLET2006COBALT SS, 4D SEDAN, STANDARDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 86 (GENERAL INFORMATION)INTRODUCTIONKEY AND LOCK CYLINDER CODINGIGNITION LOCK CYLINDER CODINGTOOLS REQUIREDCODING ALL LOCK CYLINDERS EXCEPT IGNITION LOCK CYLINDER
2006 Chevrolet Cobalt SS, 4D Sedan, Standard
Coding All Lock Cylinders Except Ignition Lock Cylinder
2006 Chevrolet Cobalt SS, 4D Sedan, StandardSECTION Coding All Lock Cylinders Except Ignition Lock Cylinder
WARNING: This page is about a different car, the 2005 Buick LaCrosse and 2005 Buick Allure. However, it is still accessible from the selected car via links, so may be relevant.
All of the vehicle's lock cylinders, except the ignition lock cylinder, use a maximum of five tumblers.
- Determine the lock cylinder tumbler numbers and their positions. Refer to Ignition Lock Cylinder Coding.
- Install the appropriate tumblers accordingly.
- Install the lock cylinder cap (If applicable) to the lock cylinder. Refer to Capping Procedure for Lock Cylinders with Press-On Caps or Capping Procedure for Lock Cylinders without Press-On Caps.
- Install the lock cylinder actuator arm and retainer on the back of the cylinder (if applicable).
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.