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Service bulletin PIP-5402

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 id10078885
Published by NHTSA2016-08-25
Manufacturer's numberPIP-5402
Manufacturer's date2016-05-17
NHTSA componentENGINE

NHTSA's summary

THIS PRELIMINARY INFORMATION COMMUNICATION PROVIDES THE TECHNICIAN WITH THE DIAGNOSIS AND REPAIR STEPS FOR A VEHICLE WITH A CHECK ENGINE LIGHT ON WITH DIAGNOSTIC TROUBLE CODE P015B OR A REDUCED ENGINE POWER MESSAGE WITH DIAGNOSTIC TROUBLE CODE P1101. TECHNICIAN SHOULD LOOK FOR A MISSING OR DAMAGED O-RING SEAL IN THE CHARGE AIR COOLER COUPLER.

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

Engine

Trouble codes named

P015B, P1101

Vehicles listed
BUICK REGAL2013, 2014, 2015, 2016
CADILLAC ATS2013, 2014, 2015, 2016
CADILLAC CT62016
CADILLAC CTS2014, 2015, 2016
CHEVROLET MALIBU2013, 2014, 2015, 2016

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
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18-NA-0692025-05-06. Service bulletin. This service bulletin provides a service procedure to correct conditions of Poor Engine Performance in Extremely cold weather conditions, CAC Icing, MIL Illuminated with DTCs 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.
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16-NA-0032025-02-28. Service bulletin. This service bulletin provides repair information to correct a customer concern of a chirp, squeak noise heard coming from the rear of vehicle.
22-NA-0742025-02-12. Service bulletin. This service bulletin provides service information to technicians on guidelines to replace Oil Cooler, Oil Cooler Lines and Oil Tank if the engine was replaced where large amounts of debris has flowed throughout the oiling system.
21-NA-0432025-02-12. Service bulletin. This bulletin advises the dealers to maintain the vehicle stock on hand by doing a full inspection on the vehicles before being sold (prepping) to the customer.
20-NA-1662025-01-23. Service bulletin. This service bulletin advises the technician of possible coolant entering the areas of the engine, either through failed parts or defects in the castings, that may be the cause of the concerns related to the MIL or the engine running rough.