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 MANUALSCHEVROLET2009HHR LT, 2.4 V, STANDARDREPAIR AND DIAGNOSIS (SINGLE PAGE)ACCESSORIES & EQUIPMENTCOMMUNICATION DEVICESPROGRAMMING AND SETUP - ALL SYSTEMSREPAIR INSTRUCTIONSTHEFT DETERRENT CONTROL MODULE PROGRAMMING AND SETUP (N. AMERICA EXCEPT CANADA)SET UP A THEFT DETERRENT MODULE (TDM) USING NEW KEYSNOTES
2009 Chevrolet HHR LT, 2.4 V, Standard
Set Up a Theft Deterrent Module (TDM) Using New Keys: Notes
2009 Chevrolet HHR LT, 2.4 V, StandardSECTION Notes
IMPORTANT:
Use this procedure only if replacing the TDM using new vehicle keys.
The TDM must be replaced prior to beginning this procedure.
The TDM must be replaced prior to beginning this procedure.
RENDER: 1.0x
NO RELATED
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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.