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Service bulletin 18NA115

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 id10137551
Published by NHTSA2018-05-21
Manufacturer's number18NA115
Manufacturer's date2018-04-13
NHTSA componentENGINE AND ENGINE COOLING

NHTSA's summary

This Bulletin provides inspection/diagnosis/correction information on a cold start misfire and/or rough idle and DTC P0300 that may also be set.

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

Trouble codes named

P0300

Vehicles listed
BUICK ENCLAVE2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017
BUICK LACROSSE2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016
CADILLAC ATS2013, 2014, 2015, 2016, 2017, 2018
CADILLAC CTS2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018
CADILLAC SRX2010, 2011, 2012, 2013, 2014, 2015
CADILLAC XTS2013, 2014, 2015, 2016, 2017, 2018
CHEVROLET CAMARO2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018
CHEVROLET CAPRICE2012 to 2017
CHEVROLET CAPTIVA2012 to 2015
CHEVROLET COLORADO2015, 2016, 2017, 2018
CHEVROLET EQUINOX2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017
CHEVROLET IMPALA2012, 2013, 2014, 2015, 2016, 2017, 2018
CHEVROLET TRAVERSE2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018
GMC ACADIA2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018
GMC CANYON2015, 2016, 2017, 2018

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

Recalls for the same vehicles and component
20101702010-05-28. Engine
10V2230002010-05-25. ENGINE AND ENGINE COOLING

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
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.
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.
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.
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.
23-NA-2162025-02-28. Service bulletin. This service bulletin provides a procedure to replace the exhaust resonator/muffler assembly to correct a customer concern of rattle noise from exhaust.
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.