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Service bulletin PI1150

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 id10190984
Published by NHTSA2021-04-28
Manufacturer's numberPI1150
Manufacturer's date2014-01-01
NHTSA componentPOWER TRAIN:AUTOMATIC TRANSMISSION; ENGINE

NHTSA's summary

Clicking/Rattle Type Noise from Rear of Engine Some customers may comment on a clicking/rattle type noise coming from the engine compartment. This may be caused by the starter shield contacting the transmission case and causing a rattle

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, Transmission and driveline, Automatic transmission

Vehicles listed
CHEVROLET SILVERADO 15002014 (the catalog's model; the bulletin names a series or trim of it)
GMC SIERRA 15002014 (the catalog's model; the bulletin names a series or trim of it)

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

Recalls for the same vehicles and component
14V1520002014-03-31. POWER TRAIN:AUTOMATIC TRANSMISSION:COOLING UNIT AND LINES

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
142042024-01-16. Service bulletin. Inner Tie Rod Torque
17-NA-0662023-07-25. Service bulletin. This service bulletin provides information for automatic transmission Oil Cooler Flush and flow test.
16-NA-1302023-03-08. Service bulletin. This service bulletin provides information for after installation of a replacement upper valve body, the transmission may have no Reverse and no 2nd gear.
06-00-89-031D2021-09-07. Service bulletin. OEM and Remanufactured Engine and Automatic Transmission/Transaxle Identification
990420002L2021-08-09. Service bulletin. This service bulletin provides information on Driveline Clunk Noise and what is acceptable and what is considered normal operation.
06-00-89-031D2021-04-20. Service bulletin. OEM and Remanufactured Engine and Automatic Transmission/Transaxle Identification
150089004C2021-03-08. Service bulletin. This service bulletin provides technicians with updated information to help identify the differences between what is considered a fluid leak, and what is considered fluid seepage.
19NA1532021-02-01. Service bulletin. This technical bulletin provides a procedure to replace the torque converter and inspect the front pump and the TEHCM for metal.
060089031F2020-12-21. Service bulletin. This service bulletin provides information on OEM and Remanufactured Engine and Automatic Transmission/Transaxle Identification.
1308116001F2020-12-07. Service bulletin. The intent of this technical bulletin is to identify aftermarket ALDL or DLC interface devices as potential sources for causing multiple customer concerns that do not have other diagnostic methods to identify them.