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Service bulletin 16-NA-405

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 id10116549
Published by NHTSA2017-08-31
Manufacturer's number16-NA-405
Manufacturer's date2017-01-23
NHTSA componentFUEL SYSTEM, DIESEL: PRE-HEATER

NHTSA's summary

This technical bulletin provides a procedure to install a PCV heater and a front fascia blocker to correct the turbo charger system from freezing causing cold weather performance issues.

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

Fuel system

Vehicles listed
BUICK ENCORE2013, 2014, 2015, 2016, 2017
CHEVROLET TRAX2013, 2014, 2015, 2016, 2017

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

Recalls for the same vehicles and component
20140192014-01-23. 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.

Other bulletins for the same vehicles and component
25-NA-0652025-04-24. Service bulletin. This informational bulletin instructs the tech when fuel/fluid is needed to be tested and where it can be sent for analysis.
05-06-04-022V2024-09-05. Service bulletin. This bulletin provides information on the TOP TIER Detergent Gasoline Licensed Brands and the TOP TIER Diesel Fuel Licensed Brands that are recommended for use in all GM vehicles and the TOP TIER FUELS website URL.
16-NA-3832024-07-16. Service bulletin. This service bulletin advises of a new fuel injection cleaner kit used for decarbonizing the intake valves to correct conditions of rough idle, Crank no start, extended crank or misfire, MIL with DTCs, and explains how Top Tier fuels should be used to reduce carbon build-up.
04-06-04-051I2024-07-16. Service bulletin. This service bulletin provides information for maintenance cleaning of the fuel injectors and gasoline detergent additive.
PIP5596A2024-04-15. Service bulletin. This Preliminary information communicates that when removing the fuel line jumper hose care should be taken to be sure the line is reinstalled correctly to avoid a no/low fuel pressure situation.
19-NA-0442024-02-21. Service bulletin. This service bulletin provides information on the cold start control system in DI engines to reduce cold start emissions and improve fuel economy.
14D1332024-02-12. Service bulletin. Special Return - Fuel Tank Module Kit: ACDelco Part Number M10256 (select date codes)
15602A2023-12-18. Service bulletin. Fuel Pump Module Mounting Ring
133952023-12-11. Service bulletin. Service Update for Inventory and Customer Vehicles Contact between the Fuel Feed Line and the A/C Pipe Expires with Base warranty -with 1.4L Turbo engine
04-06-04-051H2023-08-28. Service bulletin. This service bulletin provides information for maintenance cleaning of the fuel injectors and gasoline detergent additive.