Service bulletins for the 2021 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.
136 on file from NHTSA, as of 2026-10-19.
About P0073 on the 2021 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: P0073 are shown. Show all
| 18-007-25 | 2025-03-03. Service bulletin. POWER TRAIN. "Flash: Powertrain Control Module (PCM) Updates **Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle must exhibit/set one or more of the following Diagnostic Trouble Codes (DTCs):** ● **P0606 - Control Module Processor.** ● P043E-00 - EVAP System Leak Detection Reference Orifice Low Flow. ● P2C33-00 - Crankcase Pressure Sensor B Circuit Range/Performance. ● P2C91-00 - 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. **Customers may also experience the following: ● Vehicle goes into limp-in mode.* This bulletin involves reprogramming both the Primary (ECM) and Secondary (ECM2) Engine Control Modules (ECMs) also known as Powertrain Control Modules (PCMs) with the latest available software. NOTE: An additional module flash is required for this update to be effective, the following module is to be updated along with this PCM update: ● Transmission Control Module (TCM)" |
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| 2101723 | 2023-08-21. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM); ELECTRICAL SYSTEM; POWER TRAIN. Flash: Transmission Control Module (TCM) 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: ? P043E-00 - EVAP System Leak Detection Reference Orifice Low Flow. ? P2C33-00 - Crankcase Pressure Sensor B Circuit Range/Performance. ? P2C91 - Crankcase Ventilation System - Hose B 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 A 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. 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). |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.