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Service bulletins for the 2002 Chevrolet Trailblazer

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.

643 on file from NHTSA, as of 2026-10-19.

About B0150 on the 2002 Chevrolet Trailblazer: what the code means, and the bulletins and recalls about the same components.

By type

By component

By trouble code

Only bulletins with trouble code: B0150 are shown. Show all

Bulletins, newest first
0201390032002-10-10. Service bulletin. VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM. CONCERNS WITH EXT AND XL MODELS EXHIBITING INOPERATIVE REAR HVAC CONTROLS AND / OR DIAGNOSTIC TROUBLE CODE B0150. *TT
020139003A2002-10-10. Service bulletin. VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM. CONCERNS WITH EXT AND XL MODELS EXHIBITING INOPERATIVE REAR HVAC CONTROLS AND / OR DIAGNOSTIC TROUBLE CODE B0150. *TT

The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.