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 543 (IMMOBILIZER SYSTEM)DIAGNOSTIC INFORMATION AND PROCEDURESDIAGNOSTIC CODE INDEX
2008 Chevrolet HHR LT, 2.4 P, Automatic
Diagnostic Code Index
2008 Chevrolet HHR LT, 2.4 P, AutomaticSECTION Diagnostic Code Index
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.
DIAGNOSTIC CODE INDEX
| DTC | Description |
|---|---|
| DTC B2957, B2958, B2960, or B3033 | B2957: Security System Sensor Data Circuit Low B2958: Security System Sensor Data Circuit High B2960: Security System Sensor Data Incorrect but Valid B3033: Security System Indicates Tamper |
| DTC B3031 (North America, except Canada) | B3031: Security System Controller In Learn Mode |
| DTC B3031 (Canada, Europe, Middle East, and Asia) | B3031: Security System Controller In Learn Mode |
| DTC B3055 | B3055: No Transponder Modulation or No Transponder |
| DTC B3060 | B3060: Unprogrammed Transponder Identification Code Received |
| DTC B3935 | B3935: Transponder Authentication Error |
| DTC B3976 | B3976: Unconfigured Transponder |
| DTC P1630 | P1630: Theft Deterrent Learn Mode Active |
| DTC P1631 | P1631: Theft Deterrent Fuel Enable Signal Not Correct |
RENDER: 1.0x
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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.