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Service bulletin PIP5421

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 id10099861
Published by NHTSA2017-05-19
Manufacturer's numberPIP5421
Manufacturer's date2016-09-30
NHTSA componentENGINE

NHTSA's summary

THIS PRELIMINARY INFORMATION COMMUNICATION PROVIDES INFORMATION TO THE TECHNICIAN ABOUT VEHICLES THAT MAY BE RUNNING ROUGH WITH A MALFUNCTION INDICATOR LAMP ON. TECHNICIAN MAY FIND DIAGNOSTIC TROUBLE CODE P0300 SET. TECHNICIAN WILL NEED TO PERFORM AN ENGINE COMPRESSION TESTING IN SERVICE INFORMATION. IF EXCESSIVE LEAKAGE TO THE CRANKCASE IS ISOLATED, CHECK PISTON AND CYLINDER WALL CONDITION. TECHNICIAN SHOULD PERFORM THE REPAIR PER THE LEVEL OF DAMAGE. IF THE CYLINDER WALL SURFACE HAS NOT BEEN COMPROMISED, ONLY PISTON REPLACEMENT IS REQUIRED.

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

P0300

Vehicles listed
BUICK ENCORE2016, 2017
CHEVROLET CRUZE2016, 2017
CHEVROLET IMPALA2016, 2017

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
00-06-01-026R2025-12-03. Service bulletin. This service bulletin provides information on replacing the intake manifold when the engine is replaced after severe internal engine damage.
22-NA-0072025-11-15. Service bulletin. This service bulletin provides procedures to correct customer concerns of Poor Engine Performance in Extremely Cold Weather Conditions, Charge Air Cooler (CAC) Icing - Malfunction Indicator Lamp (MIL) Illuminated with DTCs P0299, P0234, P0236, P2227, P00C7 Set.
23-NA-1532025-10-25. Service bulletin. The service bulletin advises the tech of a normal transmission shift condition and the delay in throttle response when the throttle plate is opened rapidly and advises the customer that it is normal for the delay.
15-NA-0102025-07-07. Service bulletin. This service bulletin provides information to dealership personnel for new vehicles with less than 1,000 miles that may not pass California smog inspection or smog inspection in other states.
25-NA-1002025-06-12. Service bulletin. This warranty administration bulletin provides policy information on vehicles outside of a California Emissions State who move to and register their vehicle in a California Emission State may be entitled to the 7 year, 70,000-mile Emission Select State Component Limited Warranty.
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.
25-NA-0522025-04-10. 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.
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.