Stellantis bulletin 08-394-25 REV. A
What it saysTelematics Box Module (TBM) Backup Battery Replacement When DTC B1E21 Is Present Technicians may experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle may exhibit/set the following Diagnostic… NHTSA’s full summary ↓
Stellantis filed this with NHTSA as a service bulletin dated Dec 12, 2025, received Dec 11, 2025, about the electrical system — 2 documents under this number: 08-394-25 and 1 more. It names 111 model years across Jeep, Ram, Dodge, Chrysler and Alfa Romeo (2019–2026). A service bulletin is not a safety recall: it is the manufacturer telling its dealers how to diagnose or repair a condition, and whether the work is paid for depends on the warranty in force. Quoting the number at a service desk can save a diagnosis.
One page for every brand it was filed under. Each brand’s bulletins: Jeep · Ram · Dodge · Chrysler · Alfa Romeo.
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What the bulletin says
Source: NHTSA's summary of the manufacturer's communicationTelematics Box Module (TBM) Backup Battery Replacement When DTC B1E21 Is Present Technicians may experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle may exhibit/set the following Diagnostic Trouble Code (DTC): ● B1E21-96 - Backup Battery Component Internal Failure.
Trouble codes it names: B1E21
Documents filed under this number
| Document | Kind | Dated | NHTSA id | At NHTSA |
|---|---|---|---|---|
| 08-394-25 REV. A | Service bulletin | Dec 12, 2025 | 11026677 | |
| 08-394-25 | Service bulletin | Dec 5, 2025 | 11026549 |
The summary is NHTSA’s abstract of the document, as filed under 49 CFR 579.5. One communication is usually filed as several documents — the bulletin, a dealer notice, an owner letter — and the number on any of them finds this page. A PDF link is shown only once NHTSA’s own server has been seen to serve that document; the rest are checked over the following nights. Quote the number at a service desk; it is what the dealer’s system is keyed on.
Model years it names
Source: as the manufacturer filed themJeep 38 model years
Also filed against model years this site has no page for: 2024 Jeep Renegade; 2025 Jeep Renegade.
Ram 30 model years
and 12 more on this site: 2023 Ram 2500, 2022 Ram 2500, 2026 Ram 3500, 2025 Ram 3500, 2024 Ram 3500, 2023 Ram 3500, 2022 Ram 3500, 2026 Ram ProMaster, 2025 Ram ProMaster, 2024 Ram ProMaster, 2023 Ram ProMaster, 2022 Ram Promaster City.
Also filed against model years this site has no page for: 2022 Ram 4500; 2023 Ram 4500; 2024 Ram 4500; 2025 Ram 4500; 2026 Ram 4500; 2022 Ram 5500; 2023 Ram 5500; 2024 Ram 5500; 2025 Ram 5500; 2026 Ram 5500.
Dodge 14 model years
and 5 more on this site: 2023 Dodge Durango, 2022 Dodge Durango, 2025 Dodge Hornet, 2024 Dodge Hornet, 2023 Dodge Hornet.
Also filed against model years this site has no page for: 2026 Dodge Hornet.
Chrysler 10 model years
and 2 more on this site: 2023 Chrysler Voyager, 2022 Chrysler Voyager.
Alfa Romeo 19 model years
and 11 more on this site: 2026 Alfa Romeo Stelvio, 2025 Alfa Romeo Stelvio, 2024 Alfa Romeo Stelvio, 2023 Alfa Romeo Stelvio, 2022 Alfa Romeo Stelvio, 2021 Alfa Romeo Stelvio, 2020 Alfa Romeo Stelvio, 2019 Alfa Romeo Stelvio, 2026 Alfa Romeo Tonale, 2025 Alfa Romeo Tonale, 2024 Alfa Romeo Tonale.
A vehicle page’s bulletin list shows the newest few communications filed against that model year; the count there is every one.
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What owners reported
Source: NHTSA complaint databaseOwners of the 98 model years this bulletin names have filed 8,408 complaints with NHTSA since 2015. 3,486 of them name Electrical System — the same broad component group this bulletin is filed under. NHTSA groups complaints coarsely, so that means the same area of the vehicle, not necessarily the same fault.
On the 2024 Jeep Wrangler, the 64 owners who gave an odometer reading for Electrical System reported it at a median of 15,000 miles. That figure is one model year’s, not the whole range this bulletin covers — medians from different model years are not averaged.
I am having continual failures of the electronic door lock/linkage that causes the door to no open from either the interior or exterior of the vehicle. The door latch has been replaced twice on the driver door, once on the rear driver side, the passenger rear is going to be replaced this week, and the passenger front is starting to make…
2023 Dodge Hornet · Electrical System · filed with NHTSA Apr 2, 2026 · ODI 11728771
The contact rented a 2025 Chrysler Pacifica Hybrid from Budget Car Rental (2176 Main St, Dunedin, FL 34698). The contact stated that while driving approximately 55 MPH, the contact believed that the vehicle was being tracked via Bluetooth throughout a trip from Florida to Kansas City to New York and back to Florida, as the vehicle was…
2025 Chrysler Pacifica · Electrical System · filed with NHTSA Aug 19, 2026 · ODI 11757923
I am filing a safety defect complaint regarding a 2026 Dodge Charger Daytona (400V electric vehicle platform) that suffered a catastrophic high-voltage system shutdown at approximately 1,261 miles. The vehicle had charge remaining and was being prepared for charging when it experienced a forced EV system shutdown and would not restart.
2026 Dodge Charger · Electrical System · filed with NHTSA Feb 24, 2026 · ODI 11720267
In depth: 2023 Chrysler Pacifica electrical problems → · 2022 Chrysler Pacifica electrical problems → · 2022 Jeep Compass electrical problems → · 2024 Jeep Grand Cherokee electrical problems →
A complaint is one owner’s account, not a defect finding, and a bulletin is not a recall. Nothing here says this bulletin was issued because of these complaints, or that the repair it describes fixed them. Complaint files on this site begin in 2015.
More bulletins about the electrical system
Source: same model, same component group1,503 other manufacturer communications filed against these Stellantis models under the same component group (electrical system), newest first. The eight newest are listed; the rest are on the Jeep list.
| Number | Kind | Dated | NHTSA’s summary |
|---|---|---|---|
| 08-405-26 | Service bulletin | Oct 24, 2026 | Flash: Body Control Module (BCM) Update Customers may comment on the following: SYMPTOM: ● Driver and passenger doors do not lock or unlock… |
| 08-404-26 | Service bulletin | Oct 24, 2026 | Flash: Radio Frequency Hub Module (RFHM) Update Customers may comment on the following: SYMPTOM: ● Driver and passenger doors do not lock or… |
| 08-403-26 | Service bulletin | Oct 24, 2026 | Flash: Body Control Module (BCM) Update Customers may comment on the following: SYMPTOM: ● Driver and passenger doors do not lock or unlock… |
| 08-402-26 | Service bulletin | Oct 24, 2026 | Flash: Radio Frequency Hub Module (RFHM) Update Customers may comment on the following: SYMPTOM: ● Driver and passenger doors do not lock or… |
| 08-401-26 | Service bulletin | Oct 24, 2026 | Flash: Radio Frequency Hub Module (RFHM) Update Customers may comment on the following: SYMPTOM: ● Driver and passenger doors do not lock or… |
| 08-400-26 | Service bulletin | Oct 24, 2026 | Flash: Body Control Module (BCM) Update Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle must SYMPT… |
| 08-399-26 | Service bulletin | Oct 24, 2026 | Flash: Radio Frequency Hub Module (RFHM) Update Customers may comment on the following: SYMPTOM: ● Driver and passenger doors do not lock or… |
| 08-398-26 | Service bulletin | Oct 24, 2026 | Flash: Body Control Module (BCM) Update Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle must SYMPT… |
Quote the number at the service desk. It is what the dealer’s system is keyed on.
Every manufacturer communication NHTSA holds for Jeep, Ram, Dodge, Chrysler and Alfa Romeo, by the number printed on the letter.
Common questions
Source: NHTSA, 49 CFR 579.5Is Stellantis 08-394-25 REV. A a recall?
No. A service bulletin is a manufacturer communication filed with NHTSA under 49 CFR 579.5; a safety recall carries an NHTSA campaign number (two digits, a letter, six digits) and a federal duty to repair for free. Check the vehicle’s recalls by VIN at nhtsa.gov/recalls, or on its page here.
Is the 08-394-25 REV. A repair free?
Not automatically. A service bulletin describes how to diagnose or repair a condition; who pays depends on the warranty in force, any extension, and the dealer. Quoting the number can save a diagnosis either way. Every Stellantis warranty extension on file lists the ones Stellantis has filed.
Which vehicles does 08-394-25 REV. A cover?
The manufacturer filed it against 111 model years across 5 brands (Jeep, Ram, Dodge, Chrysler and Alfa Romeo): 2026 Alfa Romeo Giulia, 2025 Alfa Romeo Giulia, 2024 Alfa Romeo Giulia, 2023 Alfa Romeo Giulia, 2022 Alfa Romeo Giulia, 2021 Alfa Romeo Giulia and more. Whether one particular vehicle is affected is a matter of its VIN and its build, not its model year alone.