Programming Immobilizer System Components

2009 Chevrolet HHR LT, 2.4 V, StandardSECTION Programming Immobilizer System Components

After the TDM has been set up using the above procedure, the ECM and TDM must learn the new fuel continue password. To learn the new password, perform the Immobilizer System Component Programming procedure.



After the TDM has been set up using the above procedure, the ECM and TDM must learn the new fuel continue password. To learn the new password, perform the Immobilizer System Component Programming procedure.

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • β€’ You smell fuel, burning insulation, or see smoke.
  • β€’ Brakes feel soft, pull hard to one side, or make grinding noises.
  • β€’ The engine overheats, stalls repeatedly, or misfires under load.
  • β€’ You are missing required tools, torque specs, or safe lifting equipment.
  • β€’ You are not confident in the next step or safety outcome.