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Service bulletin PIP5385

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 id10113954
Published by NHTSA2017-08-15
Manufacturer's numberPIP5385
Manufacturer's date2016-03-22
NHTSA componentFUEL SYSTEM, GASOLINE

NHTSA's summary

This Preliminary Information communication provides information to the technician with the steps to diagnose and repair vehicles that may have Service Engine Soon lamp or reduced engine power message came on and was cleared after cycling the key. Also technician may find a P228C set as current or history, and a prior history of High Pressure Fuel Pump replacement, and the customer has been using E85 fuel. If the Diagnostic Trouble Code is current follow Service Information instruction for the repair. If the code is set in history and there are no current drivability concerns take a large fuel sample and let it sit for a couple of hours looking for contamination. Verify the fuel pressure using a scan tool the actual and desired fuel pressures are very close to the same. If contamination is found in the tank then completely flush the fuel system and add e-10 fuel. Also remove the high pressure fuel pump inlet line from both ends. Using regulated air down to about 60 pounds per square inch or lower, blow through the inlet side of this pipe / hose. Inspect for restriction in the check valve built into this hose. If restricted then replace the pipe run a tank of premium fuel through the vehicle and reevaluate the concern.

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

Trouble codes named

P228C

Vehicles listed
BUICK LACROSSE2011, 2012, 2013, 2014, 2015, 2016
CADILLAC ATS2013
CADILLAC SRX2011, 2012, 2013
CHEVROLET CAPRICE2012 to 2015
CHEVROLET CAPTIVA2013 to 2015
CHEVROLET EQUINOX2011, 2012, 2013, 2014
CHEVROLET IMPALA2012, 2013, 2014, 2015, 2016
GMC TERRAIN2011, 2012, 2013, 2014

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

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