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Service bulletin PIP5545B

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 id10154580
Published by NHTSA2019-03-18
Manufacturer's numberPIP5545B
Manufacturer's date2018-12-11
NHTSA componentENGINE AND ENGINE COOLING

NHTSA's summary

This Preliminary information communicates a possible noise from the water pump causing a DTC and the diagnostics for the repair.

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

Vehicles listed
BUICK LACROSSE2017, 2018, 2019
CADILLAC ATS2016, 2017, 2018, 2019
CADILLAC CT62016
CADILLAC CT62019
CADILLAC CT6 PLUG-IN HYBRID2017, 2018 (the catalog's model; the bulletin names a series or trim of it)
CADILLAC CTS2016, 2017, 2018, 2019
CADILLAC XT52017, 2018, 2019
CHEVROLET CAMARO2016, 2017, 2018, 2019
CHEVROLET COLORADO2017, 2018, 2019
GMC ACADIA2017, 2018, 2019
GMC CANYON2017, 2018, 2019

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

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22-NA-0802025-10-16. Service bulletin. This technical bulletin provides a procedure to replace the camshaft actuator magnet to correct customer concerns of engine related shudder.
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21-NA-2402025-06-16. Service bulletin. This service bulletin provides diagnostic repair information to correct an oil leak in the engine.
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23-NA-0742025-05-02. Service bulletin. This service bulletin provides a procedure to add deadener to the batter tray bracket to correct customer concerns of a Service Engine Soon (SES), Reduced Power, Service Brake, Reduced Steering and/or Stabilitrak Message Illuminated on DIC, multiple DTCs.
21-NA-1392025-05-01. Service bulletin. This service bulletin provides a repair procedure to correct a customer concern of a Malfunction Indicator Lamp (MIL) Illuminated - DTC P3055 Set.
25-NA-0522025-04-28. Service bulletin. This bulletin advises the technician to flush the cooling system multiple times if oil has been found in the cooling system and replace the parts that may be contaminated due to oil in system.