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Service bulletin 110601

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 id623489
Published by NHTSA2001-10-29
Manufacturer's number110601
Manufacturer's date2001-06-11
NHTSA componentENGINE AND ENGINE COOLING:COOLING SYSTEM

NHTSA's summary

SUBJECT REGARDING AN UNDER FILL CONDITION OF THE VEHICLES' COOLANT SYSTEM. SOME OF THESE VEHICLES MAY EXHIBIT A LOW COOLANT LIGHT MESSAGE. *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, Cooling system

Vehicles listed
BUICK LESABRE2001
CADILLAC DEVILLE2001
CADILLAC SEVILLE2001

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
070120042005-04-29. Service bulletin. RADIATOR SUPPORT SIGHT SHIELD. *SC
091320022004-09-30. Service bulletin. THIS MESSAGE CONCERNS INSIDE AIR TEMPERATURE SENSOR NOISY. COMMENTS THAT A NOISE IN THE LEFT SIDE OF THE INSTRUMENT PANEL ON COLD STARTS. THIS NOISE MAY BE DESCRIBED AS A GRIND, GROWL, HUM, WHINE OR SQUEAL. A FAN NOISE MAY ALSO BE HEARD WHILE DRIVING. THIS CONDITION MAY BE CAUSED BY THE INSIDE AIR TEMPERATURE SENSOR. *TT
030192004-04-22. Service bulletin. ENGINE COOLANT MAY LEAK AT THE UPPER INTAKE MANIFOLD THROTTLE BODY GASKET, OR AT THE UPPER INTAKE MANIFOLD TO LOWER INTAKE MANIFOLD TO LOWER INTAKE MANIFOLD GASKET. THIS CONDITION MAY RESULT IN A LOW ENGINE COOLANT LEVEL AND HIGHER ENGINE OPERATING TEMPERATURES. *TT THIS IS A PARTS BULLETIN AND REFERS TO CUSTOMER SATISFACTION PROGRAM BULLETIN #03034. *TT
030602004B2004-02-11. Service bulletin. LOSS OF ENGINE COOLANT. *TT
0306010162003-08-26. Service bulletin. LOSS OF COOLANT, MILKY COLORED OIL. *TT
0306020042003-08-26. Service bulletin. LOSS OF ENGINE COOLANT. *TT
030602004A2003-08-26. Service bulletin. LOSS OF ENGINE COOLANT. *TT