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Service bulletin 2100622

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 id10212419
Published by NHTSA2022-05-31
Manufacturer's number2100622
Manufacturer's date2022-03-22
NHTSA componentPOWER TRAIN; EQUIPMENT; ELECTRICAL SYSTEM; POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM)

NHTSA's summary

Flash: Transmission Control Module (TCM) Updates This bulletin involves reprogramming the TCM with the latest available software. Some customers may experience the following:Harsh or erratic shifting between any gear.

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, Automatic transmission, Transmission control module

Vehicles listed
ALFA ROMEO STELVIO2022

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
18041232023-08-21. Service bulletin. Flash: Powertrain Control Module (PCM) Updates Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find one or more of the following Diagnostic Trouble Codes (DTCs) have been set: ? **P1CEA-00 - Boost Side EVAP Purge System Performance.** ? P2AC0-00 - Intake Air O2 Sensor Reference Voltage Circuit Range/Performance Bank 1. This bulletin involves reprogramming the PCM with the latest available software.
1804123A2023-08-21. Service bulletin. Flash: Powertrain Control Module (PCM) Updates Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find one or more of the following Diagnostic Trouble Codes (DTCs) have been set: ? P2AC0-00 - Intake Air O2 Sensor Reference Voltage Circuit Range/Performance Bank 1. This bulletin involves reprogramming the PCM with the latest available software.
21009232023-05-30. Service bulletin. Flash: Transmission Control Module (TCM) Updates **Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find the following Diagnostic Trouble Codes (DTCs) have been set: ? P043E-00 - EVAP System Leak Detection Reference Orifice Low Flow. ? P2C33-00 - Crankcase Pressure Sensor B Circuit Range/Performance. ? P2C91 - Crankcase Ventilation System - Hose 9B9 Disconnected. ? P00B2-00 - Radiator Coolant Temperature Sensor Circuit Range-Performance. ? P304A-00 - Fuel Rail Pressure Sensor 1 - Out Of Range High. ? P304E-00 - Fuel Rail Pressure Sensor 2-Out Of Range High. ? P02D2-00 - Cylinder 4 Fuel Injector 9A9 Offset Learning At Min Limit. ? P0607-00 - Control Module Performance. ? P0072-00 - Ambient Air Temperature Sensor Circuit Low. ? P0073-00 - Ambient Air Temperature Sensor Circuit High.**Some customers may experience the following: ? Harsh or erratic shifting between any gear. This bulletin involves reprogramming the TCM with the latest available software. NOTE: **Additional module flash is required for this update to be effective, the following module is to be updated along with this TCM update: ? Powertrain Control Module (PCM).**
18041232023-05-30. Service bulletin. Flash: Powertrain Control Module (PCM) Updates Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find one or more of the following Diagnostic Trouble Codes (DTCs) have been set: ? **P1CEA-00 - Boost Side Evap Purge System Performance.** ? P2AC0-00 - Intake Air O2 Sensor Reference Voltage Circuit Range/Performance Bank 1. This bulletin involves reprogramming the PCM with the latest available software.
18-069-222022-06-27. Service bulletin. Flash: Powertrain Control Module (PCM) Updates This bulletin involves reprogramming the Engine Control Module (ECM), also known as a PCM with the latest available software. Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find the following Diagnostic Trouble Code (DTC) has been set: P2AC0-00 - Intake Air O2 Sensor Reference Voltage Circuit Range/Performance Bank 1.