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HOMESERVICE MANUALSCHEVROLET2008HHR LT, 2.4 P, AUTOMATICREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 114 (PROGRAMMING AND SETUP - ALL SYSTEMS)REPAIR INSTRUCTIONSTHEFT DETERRENT CONTROL MODULE PROGRAMMING AND SETUP (N. AMERICA EXCEPT CANADA)SET UP A THEFT DETERRENT MODULE (TDM) USING NEW KEYSWITHOUT SCAN TOOL
2008 Chevrolet HHR LT, 2.4 P, Automatic

Without Scan Tool

2008 Chevrolet HHR LT, 2.4 P, AutomaticSECTION Without Scan Tool
WARNING: This page is about a different car, the 2009 Chevrolet HHR. However, it is still accessible from the selected car via links, so may be relevant.
  1. With a new, unlearned, vehicle key, turn ON the ignition, with the engine OFF.
  2. Observe the security indicator. After approximately 10 minutes, the telltale will turn OFF.
  3. Turn OFF the ignition, and wait 5 seconds.
  4. Repeat steps 1-3 two more times for a total of 3 cycles or 30 minutes.
    5. IMPORTANT: The engine controller learns the fuel continue password on the ignition switch transition from OFF to RUN. You must turn the ignition OFF before attempting to start the vehicle.
  5. Start the vehicle. The ECM has learned the fuel continue password.
  6. If additional keys are required to be learned, refer to Adding Keys .
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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.