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Service bulletin PI1344

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 id10114320
Published by NHTSA2017-08-15
Manufacturer's numberPI1344
Manufacturer's date2014-10-28
NHTSA componentELECTRICAL SYSTEM:STARTER ASSEMBLY:SOLENOID

NHTSA's summary

This preliminary bulletin provides a procedure to remove and inspect the clutch select solenoid valve for damage, located in the valve body to correct the customers concern of reduced acceleration at low speeds and trans slip at lauch.

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

Electrical system, Starter

Vehicles listed
CADILLAC ATS2013, 2014, 2015
CADILLAC CTS2010, 2011, 2012, 2013, 2014, 2015
CADILLAC ESCALADE2010, 2011, 2012, 2013, 2014, 2015
CADILLAC ESCALADE ESV2010, 2011, 2012, 2013, 2014, 2015 (the catalog's model; the bulletin names a series or trim of it)
CADILLAC ESCALADE EXT2010, 2011, 2012, 2013 (the catalog's model; the bulletin names a series or trim of it)
CHEVROLET AVALANCHE2010, 2011, 2012, 2013
CHEVROLET CAMARO2010, 2011, 2012, 2013, 2014, 2015
CHEVROLET CAPRICE2011 to 2015
CHEVROLET CHEVEROLET SS2014
CHEVROLET CORVETTE2010, 2011, 2012, 2013, 2014
CHEVROLET EXPRESS2010, 2011, 2012, 2013, 2014, 2015
CHEVROLET SILVERADO 15002010, 2011 (the catalog's model; the bulletin names a series or trim of it)
CHEVROLET SILVERADO 15002014 (the catalog's model; the bulletin names a series or trim of it)
CHEVROLET SILVERADO 25002010, 2011, 2012, 2013 (the catalog's model; the bulletin names a series or trim of it)
CHEVROLET SILVERADO 25002015 (the catalog's model; the bulletin names a series or trim of it)
CHEVROLET SILVERADO 35002013 (the catalog's model; the bulletin names a series or trim of it)
CHEVROLET SUBURBAN2010, 2011, 2012, 2013, 2014, 2015
CHEVROLET TAHOE2010, 2011, 2012, 2013, 2014, 2015
GMC SAVANA2010, 2011, 2012, 2013, 2014, 2015
GMC SIERRA 15002014 (the catalog's model; the bulletin names a series or trim of it)
GMC SIERRA 25002010, 2011, 2012, 2013 (the catalog's model; the bulletin names a series or trim of it)
GMC SIERRA 25002015 (the catalog's model; the bulletin names a series or trim of it)
GMC SIERRA DENALI2010, 2011, 2012, 2013 (the catalog's model; the bulletin names a series or trim of it)
GMC SIERRA DENALI2015 (the catalog's model; the bulletin names a series or trim of it)
GMC YUKON2010, 2011, 2012, 2013, 2014, 2015
GMC YUKON XL2010, 2011
GMC YUKON XL2012, 2013, 2014 (the catalog's model; the bulletin names a series or trim of it)
GMC YUKON XL2015

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
ADI140152024-01-08. Service bulletin. There is a quality concern with the Camaro Remote Start kit
147302023-12-18. Service bulletin. Torque Converter Clutch Wear
PIC56302023-12-11. Service bulletin. Intermittent No Crank.
180292018-08-20. Service bulletin. 18029 - Special Coverage. Certain vehicles listed above, may have an inoperative purge solenoid that could lead to excessive fuel vapors entering the combustion chamber from the fuel tank. This condition could result in no start, idle stall, and possible drivability issues such as hesitation. The driver may see a check engine light, and may notice a ticking noise, and variation in idle speed. The driver may experience this condition most immediately after filling up the vehicle with gas or while coming to a stop. This special coverage covers the condition described above for a period of 10 years or 120,000 miles (193,000 km), whichever occurs first, from the date the vehicle was originally placed in service, regardless of ownership. Dealers are to inspect for a leak in the solenoid assembly and replace if necessary. The repairs will be made at no charge to the customer.
14-06-04-0022018-05-21. Service bulletin. This informational bulletin provides information of customer concern of the vehicle has a no start condition, caused from upfitter modifications not properly preparing the ground, causing the LPG fuel pump to lose a ground connection.
PIP5180B2018-03-12. Service bulletin. This Preliminary Information communication provides information to the technician about vehicles that have hard start, extended crank, or black smoke from the exhaust when starting. Technician will need to perform fuel quality test, spark test, and a compression test. Technician should also install a vacuum gauge prior to cold start and watch needle for signs of a sticking valve.
PIP4112Q2018-01-22. Service bulletin. This Preliminary Information communication provides information to the technician of a complaint of a sag or hesitation when accelerating. The concern is present when coasting at low speeds of less than 15 miles per hour and then aggressively applying the throttle, or after making a hard stop followed by an aggressive throttle. This is considered normal operation of the vehicle the throttle is delayed and opened slowly up to .7 seconds to help minimize driveline lash and clunking or will have approximately .5 seconds of zero torque to allow the transmission to shift to first gear.
PIP53192018-01-22. Service bulletin. This Preliminary Information communication provides information to the technician that some vehicles may have a rattle coming from the turbo on a cold start. If the technician has verified the rattle noise when cold is from the turbocharger, and the noise is unforced, there is a revised part available for this concern.
PIP5191B2017-10-04. Service bulletin. This Preliminary Information communication provides information to the technician about vehicles that have a ticking noise on cold start after sitting more than 6 hours. Technician will inspect the oil pump pick-up tube to block seal being compressed. It the seal is compressed replace the seal and retest.
PIC6137A2017-08-15. Service bulletin. This Preliminary Information communication provides information to the technician about vehicles that the engine stops running after extended idle with shifter in park. Dealer should communicate to the customer this condition is a normal operating characteristic of their vehicle. If the customer exits the vehicle with the fob in their possession while the engine is running and the shifter is left in park, the engine will shut off after 2.5 hours. If the customer is sitting in the vehicle with the engine running and the fob is in the vehicle, the Passive Entry Passive Start system will reach out and look for the fob after 2.5 hours. If the fob is located, the timer will reset an additional 2.5 hours.