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Service bulletins for the 2004 GMC Envoy

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.

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

By type

By component

By trouble code

By topic

Only bulletins with component: Cooling system are shown. Show all

Bulletins, newest first
PIT3116B2020-06-15. Service bulletin. ENGINE AND ENGINE COOLING:COOLING SYSTEM. This Preliminary information communicates information to Clean the throttle body if the engine stalls at idle when the A/C comes on.
38572006-02-21. Service bulletin. ENGINE AND ENGINE COOLING:COOLING SYSTEM. SUPPLEMENT TO BULLETIN 05-01-37-002A, POOR REAR HEAT PERFORMANCE . *AK
30772004-10-15. Service bulletin. ENGINE AND ENGINE COOLING:COOLING SYSTEM:FAN. TICK NOISE AT IDLE. *TT
016762004-06-03. Service bulletin. ENGINE AND ENGINE COOLING:COOLING SYSTEM:FAN. 4.2 4L60E ENGINE COOLING FAN CONTACTS SHROUD AFTER REPLACING RADIATOR. *MR
015782004-02-25. Service bulletin. ENGINE AND ENGINE COOLING:COOLING SYSTEM:FAN. COOLING FAN OPERATION. SIT BULLETIN 1413381. *TT
0810B2004-02-24. Service bulletin. ENGINE AND ENGINE COOLING:COOLING SYSTEM:FAN. TICK NOISE AT IDLE. *TT

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