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 MANUALSCHEVROLET2008HHR LT, 2.4 P, AUTOMATICREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 456 (PROGRAMMING AND SETUP - ALL SYSTEMS)REPAIR INSTRUCTIONSTRAILER LAMP CONTROL MODULE PROGRAMMING AND SETUPTRAILER INTERFACE CONTROL MODULE REPLACEMENT
2008 Chevrolet HHR LT, 2.4 P, Automatic
Trailer Interface Control Module Replacement
2008 Chevrolet HHR LT, 2.4 P, AutomaticSECTION Trailer Interface Control Module Replacement
WARNING: This page is about a different car, the 2011 GMC Canyon and 2011 Chevrolet Colorado. However, it is still accessible from the selected car via links, so may be relevant.
If the trailer interface control module is replaced, the control module programming procedure must be perform
- Connect a scan tool to the vehicle and access SPS. Refer to Service Programming System (SPS)
- Perform the SPS function Trailer Interface Control Module - Configuration & Setup and follow the on-screen instructions. On the screen Control Module - Configuration and Setup Function(s), select both control module Configuration/Reconfiguration and control module Setup.
- Clear DTCs after completing the 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:
- • 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.