WenmarOpen by Wenmar Pro

Service bulletin 9100471

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 id11015810
Published by NHTSA2025-03-19
Manufacturer's number9100471
Manufacturer's date2025-03-17
NHTSA componentUNKNOWN OR OTHER
Manufacturer's systemVapor Canister, Evaporative System Integrity Module

NHTSA's summary

"CANISTER Vapor -If an issue is detected with the Evaporative System Integrity Module (ESIM) Detector and not the Vapor Canister, only replace the ESIM Detector. -Before replacing the Vapor Canister due to Hard to Fill condition, replicate the condition at the Gas Station. If the condition is replicated, then check: 1) for kinked or pinched Clean Air Hose between the ESIM and the EVAP Air Filter; 2) for plugged EVAP Air Filter; 3) for kinked or pinched Vapor Hose between the Fuel Tank and the Vapor Canister. If the EVAP Filter is restricted, the replace the Filter. -Check if the Vapor Canister is flooded with fuel or the Recirculation Line has fuel. If fuel is found in the Vapor Canister or the Recirculation Line, then drop the Fuel Tank, remove the FDM Lock Ring to check if the internal Vapor Line is properly connected to the FDM Port. If the Vapor Line is not connected, then drain the fuel from the internal Vapor Line and properly connect to the FDM. Replace the Vapor Canister and the ESIM."

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.

Vehicles listed
ALFA ROMEO GIULIA2020 to 2025
ALFA ROMEO STELVIO2020, 2021, 2022, 2023, 2024, 2025
CHRYSLER 3002020, 2021, 2022, 2023
CHRYSLER PACIFICA2017, 2018, 2019, 2020, 2021, 2022, 2023, 2024, 2025
CHRYSLER PACIFICA PLUG-IN HYBRID2017, 2018, 2019, 2020, 2021, 2022, 2023, 2024, 2025 (the catalog's model; the bulletin names a series or trim of it)
CHRYSLER VOYAGER2020, 2021, 2022, 2023, 2024, 2025
DODGE CHALLENGER2020, 2021, 2022, 2023
DODGE CHARGER2020, 2021, 2022, 2023
DODGE DURANGO2022, 2023, 2024, 2025
JEEP CHEROKEE2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023
JEEP GLADIATOR2020, 2021, 2022, 2023, 2024, 2025
JEEP GRAND CHEROKEE2021, 2022, 2023, 2024, 2025
JEEP GRAND CHEROKEE 4XE2021, 2022, 2023, 2024, 2025 (the catalog's model; the bulletin names a series or trim of it)
JEEP GRAND CHEROKEE L2021, 2022, 2023, 2024, 2025
JEEP WRANGLER2018, 2019, 2020, 2021, 2022, 2023, 2024, 2025
RAM 15002018, 2019, 2020, 2021, 2022, 2023, 2024, 2025
RAM PROMASTER2020 to 2025

Listing a model year does not mean every vehicle of it is concerned: the document says which.