Service bulletins for the 2008 Hummer H3
A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.
908 on file from NHTSA, as of 2026-10-19.
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Only bulletins with component: Exhaust manifold, pipes and muffler are shown. Show all
| PIP4409E | 2017-08-15. Service bulletin. ENGINE AND ENGINE COOLING; ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:MANIFOLD/HEADER/MUFFLER/TAIL PIPE. This Preliminary Information communication provides information to the technician about vehicles the have a Service Engine Soon Malfunction Indicator Lamp on and or engine running rough. Technician may find Diagnostic Trouble Codes P0106, P0107, P0171, P0300, P0502, P1107, and P2431. Technician will need to inspect all Manifold Absolute Pressure sensor circuits for being broken inside of the insulation near the Manifold Absolute Pressure sensor connector. |
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The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.