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Service bulletin 200202

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.

The communication, as NHTSA indexes it (as of 2026-10-19)
TypeService bulletin
NHTSA id629815
Published by NHTSA2002-04-09
Manufacturer's number200202
Manufacturer's date2002-02-20
NHTSA componentUNKNOWN OR OTHER

NHTSA's summary

SOME OWNERS OF 2500 HD AND 3500 SERIES TRUCKS WITH THE 6600 DURAMAX DIESEL ENGINE MAY EXPERIENCE THE MALFUNCTION INDICATOR LAMP ILLUMINATED AFTER THE USE OF THE ENGINE COOLANT HEATER AS WELL AS DIAGNOSTIC TROUBLE CODE P0181. *TT

The document

No address for NHTSA's copy can be built for this communication. Ask the dealer for it by the manufacturer's number.

Trouble codes named

P0181

Vehicles listed
CHEVROLET SILVERADO2002
GMC SIERRA2002

Listing a model year does not mean every vehicle of it is concerned: the document says which.