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Service bulletin 1023A

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 id10000498
Published by NHTSA2003-02-28
Manufacturer's number1023A
Manufacturer's date2002-11-01
Replaces1023
NHTSA componentENGINE AND ENGINE COOLING:ENGINE

NHTSA's summary

OIL LEAKAGE AT HEAD OR BASE GASKET. *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.

Components

Engine

Vehicles listed
BIGDOG BDM2002 to 2003

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