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Service bulletin PIE0645

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 id10200174
Published by NHTSA2021-08-09
Manufacturer's numberPIE0645
Manufacturer's date2021-06-18
NHTSA componentELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL; EQUIPMENT; POWER TRAIN

NHTSA's summary

This engineering information (EI) is requesting information from technicians to perform the check list provided and contact the engineer listed in regards to Service Engine Soon Lamp Illuminated on Driver Information Center (DIC), Transmission Not Shifting Properly and/or Slipping, DTC P0796, P2714 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

Electrical system, Equipment and accessories, Transmission and driveline, Instrument cluster

Trouble codes named

P0796, P2714

Vehicles listed
CHEVROLET COLORADO2021
CHEVROLET SILVERADO 15002020, 2021 (the catalog's model; the bulletin names a series or trim of it)
GMC CANYON2021
GMC SIERRA 15002020, 2021 (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.

Other bulletins for the same vehicles and component
07-08-49-020R2023-10-18. Service bulletin. This informational bulletin provides information for the IPC odometer programming method quick reference guide.
22-NA-1712023-02-07. Service bulletin. This service bulletin provides service information to correct a customer concern of Malfunction Indicator Lamp (MIL) Illuminated on Driver Information Center (DIC) with DTCs P0171, P0174 Set.
PIT5195G2022-06-13. Service bulletin. This Preliminary Information communication provides information to the technician about vehicles that the speedometer needle appears to be inaccurate. Dealer should advise the customer the specification for speedometer needle accuracy is +/- 2 MPH at any given speed when looking straight at the needle.
21NA2472021-12-27. Service bulletin. This technical bulletin provides a procedure This technical bulletin provides repair information to correct a customer concern of Unable to Set PIN to Enable Teen Driver Feature.
PIE06462021-08-09. Service bulletin. This engineering informational bulletin is requesting information from technicians to perform the check list provided and contact the engineer listed in regards to the trailer light message and/or trailer disconnect message on the infotainment screen.
PIE0642A2021-08-09. Service bulletin. This engineering informational bulletin is requesting information from technicians to perform the check list provided and contact the engineer listed in regards the Service Engine Soon (SES) lamp illuminated and/or Service Emission System Message on the Driver Information Center (DIC).
21NA1142021-07-19. Service bulletin. This technical bulletin provides repair information to correct a customer concern of Fuel Gauge accuracy issues.
N2123345502021-06-14. Service bulletin. Customer Satisfaction Program. Certain vehicles with black rectangular or round tubular assist step accessories (RPO RVP/RVS) may also have had a double charge applied for the off-road rocker panel protector (RPO S6L) at the time of purchase. Dealers will provide the customer with a reimbursement check in the amount of $995.00.
21NA0782021-05-10. Service bulletin. This informational bulletin advises the technician of the changes in the DFM and DFM system for the pickups.
20NA2122021-02-22. Service bulletin. This technical bulletin provides repair information to correct a customer concern of IPC Gauges Inoperative or Fluctuate, No Crank, Start then Stall.