Service bulletin 1804523

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)
Type	Service bulletin
NHTSA id	10236922
Published by NHTSA	2023-05-30
Manufacturer's number	1804523
Manufacturer's date	2023-04-14
NHTSA component	FUEL SYSTEM, GASOLINE; POWER TRAIN; ENGINE AND ENGINE COOLING; VEHICLE SPEED CONTROL:ACCELERATOR PEDAL; SERVICE BRAKES, HYDRAULIC; POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE:SOFTWARE; ENGINE AND ENGINE COOLING:ENGINE:ENGINE CONTROL MODULE (ECU/ECM); BACK OVER PREVENTION; ELECTRICAL SYSTEM:BODY CONTROL MODULE/BCM; POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM); ELECTRICAL SYSTEM; EXTERIOR LIGHTING

NHTSA's summary

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 DTCs have been set: ? **P0331-00 - Knock Sensor 2 Circuit Range/Performance.** ? P0106-00 - Manifold Absolute Pressure/Barometric Pressure Circuit Range/Performance. ? P013A-00 - O2 Sensor Slow Response Rich To Lean Bank 1 Sensor 2. ? P015A-00 - O2 Sensor Delayed Response Rich To Lean Bank 1 Sensor 1. ? P026E-00 - Charge Air Cooler Coolant Pump Performance. ? U1008-00 - LIN 1 BUS. ? P1CEA-00 - Boost Side EVAP Purge System Performance. Customers may experience one or more of the following: ? Not passing vehicle certification during state inspections if performed after a system reset. ? Drive-ability issues. In addition, the following improvement is also available: ? Turbo coolant pump after run duration and on-off strategy update, to improve turbo O-ring durability. This bulletin involves reprogramming the PCM with the latest available software.

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

Brakes, Driver assistance, Electrical system, Engine, Fuel system, Lighting, Throttle and cruise control, Transmission and driveline, Automatic transmission, Backup camera, Body control module, Engine control module, Transmission control module

Trouble codes named

P0106, P013A, P015A, P026E, P0331, P1CEA, U1008

Vehicles listed
ALFA ROMEO STELVIO	2019

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
S2208000073	2023-01-09. Service bulletin. No Start, After Flash And Or PCM Replace, DTC P0513 Invalid Skim Key Setting
S2208000073	2022-09-26. Service bulletin. No Start, After Flash And Or PCM Replace, DTC P0513 Invalid Skim Key Setting
S2124000002	2022-09-26. Service bulletin. Customer Indicates Whistle Noise Coming From Dash When Driving With Recirc Mode On.
S2018000012	2020-12-28. Service bulletin. Check engine lamp on. Fault code P0244- TURBOCHARGER/SUPERCHARGER WASTEGATE SOLENOID "A" RANGE/PERFORMANCE is set in the Powertrain Control Module (PCM a.k.a. ECM) after the turbocharger assembly has been replaced.
S2018000012	2020-12-21. Service bulletin. Check engine lamp on. Fault code P0244- TURBOCHARGER/SUPERCHARGER WASTEGATE SOLENOID "A" RANGE/PERFORMANCE is set in the Powertrain Control Module (PCM a.k.a. ECM) after the turbocharger assembly has been replaced.
S2018000011	2020-11-30. Service bulletin. Issue includes a fault code(s) set in the Powertrain Control Module (PCM) for P0299, P0300, P0301, P0302, P0303, and/or P0304 after performing the PCM software update process for Customer Satisfaction Notification (CSN) W05.
18-024-20	2020-05-26. Service bulletin. Flash: Powertrain Control Module (PCM) Updates This bulletin involves reprogramming the Engine Control Module (ECM), also knownas a PCM with the latest available software. Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find one or more ofthe following DTCs have been set:P0106-00 - Manifold Absolute Pressure/Barometric Pressure Circuit Range/Performance. P013A-00 - O2 Sensor Slow Response Rich To Lean Bank 1 Sensor 2. P015A-00 - O2 Sensor Delayed Response Rich To Lean Bank 1 Sensor 1. P026E-00 - Charge Air Cooler Coolant Pump Performance. U1008-00 - LIN 1 BUS. P1CEA-00 - Boost Side EVAP Purge System Performance. Customers may experience one or more of the following:Not passing vehicle certification during state inspections if performedafter a system reset. Drive-ability issues. In addition, the following improvement is also available:Turbo coolant pump after run duration and on-off strategy update, to improveturbo O-ring durability.
18-024-20	2020-05-18. Service bulletin. Flash: Powertrain Control Module (PCM) Updates This bulletin involves reprogramming the Engine Control Module (ECM), also knownas a PCM with the latest available software. Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find one or more ofthe following DTCs have been set:P0106-00 - Manifold Absolute Pressure/Barometric Pressure Circuit Range/Performance. P013A-00 - O2 Sensor Slow Response Rich To Lean Bank 1 Sensor 2. P015A-00 - O2 Sensor Delayed Response Rich To Lean Bank 1 Sensor 1. P026E-00 - Charge Air Cooler Coolant Pump Performance. U1008-00 - LIN 1 BUS. P1CEA-00 - Boost Side EVAP Purge System Performance. Customers may experience one or more of the following:Not passing vehicle certification during state inspections if performedafter a system reset. Drive-ability issues. In addition, the following improvement is also available:Turbo coolant pump after run duration and on-off strategy update, to improveturbo O-ring durability.
W05	2020-05-18. Service bulletin. Customer Satisfaction Notification W05 Reprogram Powertrain Control Module
18-024-20	2020-04-27. Service bulletin. Flash: Powertrain Control Module (PCM) Updates This bulletin involves reprogramming the Engine Control Module (ECM), also knownas a PCM with the latest available software. Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find one or more ofthe following DTCs have been set:P0106-00 - Manifold Absolute Pressure/Barometric Pressure Circuit Range/Performance. P013A-00 - O2 Sensor Slow Response Rich To Lean Bank 1 Sensor 2. P015A-00 - O2 Sensor Delayed Response Rich To Lean Bank 1 Sensor 1. P026E-00 - Charge Air Cooler Coolant Pump Performance. U1008-00 - LIN 1 BUS. P1CEA-00 - Boost Side EVAP Purge System Performance. Customers may experience one or more of the following: Not passing vehicle certification during state inspections if performedafter a system reset. Drive-ability issues. In addition, the following improvement is also available:Turbo coolant pump after run duration and on-off strategy update, to improve turbo O-ring durability.