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 743 (IMMOBILIZER SYSTEM)IMMOBILIZER-KEYLESS CONTROL UNIT REPLACEMENT
2006 Chevrolet Cobalt SS, 4D Sedan, Standard
Immobilizer-Keyless Control Unit Replacement
2006 Chevrolet Cobalt SS, 4D Sedan, StandardSECTION Immobilizer-Keyless Control Unit Replacement
WARNING: This page is about a different car, the 2011 Honda Insight and 2010 Honda Insight. However, it is still accessible from the selected car via links, so may be relevant.
- Remove the steering column covers (see GLOVE BOX STRIKER REPLACEMENT )
- Disconnect the 7P connector (A) from the immobilizer-keyless control unit (B).
- Remove the two screws and the immobilizer-keyless control unit.
- Install the immobilizer-keyless control unit in the reverse order of removal.
- After replacement, register the immobilizer-keyless control unit (see IMMOBILIZER KEY REGISTRATION ), and make sure the immobilizer system works properly.
- Program all of the customer's keys/keyless transmitters (see IMMOBILIZER-KEYLESS CONTROL UNIT REPLACEMENT ).
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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.