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 DIAGNOSISBODY & FRAMEDOOR LOCKSTHEFT DETERRENT SYSTEMREPAIR INSTRUCTIONSPROGRAMMING THEFT DETERRENT SYSTEM COMPONENTS (DOMESTIC)SET UP A THEFT DETERRENT MODULE (TDM) USING NEW KEYS
2006 Chevrolet Cobalt SS, 4D Sedan, Standard
Set Up a Theft Deterrent Module (TDM) Using New Keys
2006 Chevrolet Cobalt SS, 4D Sedan, StandardSECTION Set Up a Theft Deterrent Module (TDM) Using New Keys
IMPORTANT:
- When performing the 10-Minute Relearn Procedure, all previously learned keys will be from the TDM memory. Additional keys may be learned after the completion of the 10-Minute Relearn Procedure by using the Adding Keys (Domestic) procedure.
- Use only a master key when performing the first relearn procedure. If a valet key is used first, the TDM will not allow additional keys to be learned.
Use this procedure after replacing any of the following components:
IMPORTANT:
When replacing either the vehicle keys, PCM, or TDM and the 10-Minute Relearn Procedure is used, ensure that the appropriate calibration is selected for the replacement component on the calibration selection screen of the service programming system. The appropriate calibrations for specific vehicle theft deterrent (VTD) system components are described below.
- When preparing a TDM for replacement, the Prepare Module For TDM Setup Procedure calibration is required. This allows the retrieval of required information from the TDM prior to its replacement.
- When learning vehicle keys and the 10-Minute Relearn Procedure is used, the Vehicle Theft Deterrent Learn For Learning Replacement Keys calibration is required. This clears all previously learned keys from the TDM and enables the TDM to learn new vehicle keys. For learning additional vehicle keys, refer to Adding Keys (Domestic) .
- When replacing a TDM or ECM and the 10-Minute Relearn Procedure is used, the VTD Learn for LE5 or LZ9 Powertrain System calibration is required. This clears the previously learned fuel continue password in the ECM and enables the ECM to learn the fuel continue password of the new TDM.
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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.