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Service bulletin 050202

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 id636589
Published by NHTSA2002-11-10
Manufacturer's number050202
Manufacturer's date2002-05-02
NHTSA componentENGINE AND ENGINE COOLING:EXHAUST SYSTEM:MANIFOLD/HEADER/MUFFLER/TAIL PIPE

NHTSA's summary

INFORMATION ON DIAGNOSING EXHAUST LEAKS ON THE FRONT BANK. *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, Exhaust and emissions, Exhaust manifold, pipes and muffler

Vehicles listed
CADILLAC DEVILLE2002
CADILLAC ELDORADO2002
CADILLAC SEVILLE2002

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

Other bulletins for the same vehicles and component
0406050082005-02-14. Service bulletin. AVAILABILITY OF EXHAUST MUFFLER FOR SERVICE. *TT