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Service bulletin TechTalk8161

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 id10188012
Published by NHTSA2021-03-03
Manufacturer's numberTechTalk8161
Manufacturer's date2021-02-19
NHTSA componentFUEL SYSTEM, GASOLINE; ENGINE AND ENGINE COOLING

NHTSA's summary

Tech Talk discussion on DD15 HARD TO START UNLESS PLUGGED IN.

The document

The document is the manufacturer's. This site does not hold it. NHTSA files a document at one of these two addresses; we have not asked NHTSA which.

Components

Engine, Fuel system

Vehicles listed
WESTERN STAR 49002011

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

Recalls for the same vehicles and component
12V0740002012-02-28. ENGINE AND ENGINE COOLING:ENGINE:DIESEL
20120802012-02-27. Fuel System
11V6050002011-12-27. ENGINE AND ENGINE COOLING:ENGINE:DIESEL
20114392011-12-22. Engine
11V2870002011-05-18. FUEL SYSTEM, OTHER:DELIVERY:FUEL PUMP
11V1460002011-03-03. ENGINE AND ENGINE COOLING
10V3410002010-07-27. ENGINE AND ENGINE COOLING
10V3390002010-07-27. FUEL SYSTEM, OTHER:DELIVERY:FUEL PUMP
20102502010-07-26. Fuel System
20101442010-05-03. Fuel System

A recall listed here may apply to some of the same vehicles. Only the manufacturer can say whether it applies to one vehicle.

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20TS-092020-12-07. Service bulletin. Technical Service Letter for SPN 3711 FMI 31 on GHG17 DD15 Trucks.
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WI20-0042020-04-23. Service bulletin. Warranty Information Letter for Warranty Long Block Program Change. The Detroit Reman Long Block Program has expanded. The expansion reduces complexity in ordering reman engines and promotes stocking reman engines to meet uptime commitments.