# Service bulletins for the 2006 Hummer H1

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.

3 bulletins from NHTSA, as of 2026-10-19.

- [08\-09\-02](/bulletins/10025501.md), 2008-08-14, Service bulletin: SUSPENSION:FRONT:HUB. HALFSHAFT RETAINING BOLT WITH PRE\-APPLIED THREAD LOCKER FOR ALL H1 MODELS AND MODEL YEARS. \*PE
- [08\-04\-02](/bulletins/10024741.md), 2008-05-15, Service bulletin: ENGINE AND ENGINE COOLING:COOLING SYSTEM:FAN. HUMMER \- GEARED FAN DRIVE REPLACEMENT \- ALL 2006 MODEL YEAR ALPHA VEHICLES. \*NJ
- [071201](/bulletins/10022210.md), 2007-07-23, Service bulletin: ELECTRICAL SYSTEM. ELECTRICAL DIAGNOSTICS. ILLUMINATION OF THE CHECK ENGINE LIGHT, AND ABS LIGHT. AND AN INOPERATIVE CENTRAL TIRE INFLATION SYSTEM \(CTIS\). \*KB

JSON: [/v1/vehicles/2006_hummer_h1/bulletins](/v1/vehicles/2006_hummer_h1/bulletins)

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