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Service bulletin TIB-99-018

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 id10034708
Published by NHTSA2011-01-06
Manufacturer's numberTIB-99-018
Manufacturer's date2010-10-01
NHTSA componentEQUIPMENT:OTHER:LABELS

NHTSA's summary

KENWORTH SERVICE CAMPAIGN: SEE DOCUMENT SEARCH BUTTON FOR OWNER LETTER. DOOR LABEL (GAWR, GVWR) REPLACEMENT CAMPAIGN. THE GROSS AXLE AND GROSS VEHICLE WEIGHT RATINGS (GAWR AND GVWR RESPECTIVELY) LISTED ON THE DOOR CERTIFICATION LABEL, MAY HAVE NOT BEEN ROUNDED APPROPRIATELY DUE TO A CONVERSION FACTOR ISSUE AT ONE OF THE PLANTS. CSC LETTER HAS BEEN RECEIVED. *PE

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

Equipment and accessories, Labels and manuals

Vehicles listed
KENWORTH T3002010
KENWORTH T4002011
KENWORTH T6602010
KENWORTH T8002010

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
02-1602021-03-10. Service bulletin. Information Only – Windshield washer pumps have a high No Trouble Found rate. Washer pumps may fail to spray due to a clogged filter.
32-0162020-04-03. Service bulletin. Information Only: Proper jump-starting voltage will eliminate high voltage related issues and equipment damage.
TIB-45-0422012-01-11. Service bulletin. KENWORTH: INFORMATION PERTAINING TO UPDATING THE ENGINE ON CERTAIN TRUCKS FOR NEW PRODUCTIVE ENGINES. EMISSIONS LABEL WITH REQUIRED CLARIFICATION. *PE