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Other Hummer Models

All other Hummer models and years not listed above.

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Important. ClearTheCode is a research and catalog tool, not professional automotive diagnosis or repair advice. Always follow manufacturer service information, applicable regulations, and qualified technicians for work on your vehicle. DTC descriptions and symptom/fix links may come from open datasets and seeds; verify safety-critical information with OEM sources. NHTSA and other third-party data are shown for context only and may be incomplete or outdated.

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