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Service bulletins for the 2022 Alfa Romeo Stelvio

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.

113 on file from NHTSA, as of 2026-10-19.

About P2AC0 on the 2022 Alfa Romeo Stelvio: what the code means, and the bulletins and recalls about the same components.

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Only bulletins with trouble code: P2AC0 are shown. Show all

Bulletins, newest first
18041232023-08-21. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM); POWER TRAIN; ELECTRICAL SYSTEM. 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. POWER TRAIN; POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM); ELECTRICAL SYSTEM. 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.
18041232023-05-30. Service bulletin. ELECTRICAL SYSTEM; POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM); POWER TRAIN. 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. POWER TRAIN:MANUAL TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM); POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM); ELECTRICAL SYSTEM; ENGINE AND ENGINE COOLING:ENGINE:ENGINE CONTROL MODULE (ECU/ECM). 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.

The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.