Mercedes-Benz bulletin LI47.70-P-079341
What it saysComplaint Vehicle will not start, High Voltage Malfunction error in IC Cause The FUSI (function safety) lock is activated which is causing the vehicle to not operate. NHTSA’s full summary ↓
Mercedes-Benz filed this with NHTSA as a service bulletin dated May 27, 2025, received May 28, 2025, about the electrical system. It names 11 model years (2022–2025). 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.
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What the bulletin says
Source: NHTSA's summary of the manufacturer's communicationComplaint Vehicle will not start, High Voltage Malfunction error in IC Cause The FUSI (function safety) lock is activated which is causing the vehicle to not operate. Remedy SW resolution implemented with BMS SW versions greater than or equal to 50 (ex. 24/30 50). An XSF ticket is required to unlock the FUSI restriction. Open a XSS ticket for FUSI unlock and BMS SW verification. Provide the D7 user id performing the FUSI unlock procedure via XENTRY in XSS ticket. Check for BMS SW update after FUSI reset has been performed. Only open a TIPS case if: - FUSI reset was not successful or advised by XSS team - FUSI lock occurred with BMS SW versions greater than or equal to 50
Document filed under this number
| Document | Kind | Dated | NHTSA id | At NHTSA |
|---|---|---|---|---|
| LI47.70-P-079341 | Service bulletin | May 27, 2025 | 11018610 | PDF, 36 KB |
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 themAlso filed against model years this site has no page for: 2024 Mercedes-Benz Redundant EQE 350; 2023 Mercedes-Benz Redundant EQE 350 4MATIC; 2023 Mercedes-Benz Redundant EQS 450; 2024 Mercedes-Benz Redundant EQS 450.
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 7 model years this bulletin names have filed 187 complaints with NHTSA since 2015. 50 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.
The contact owns a 2023 Mercedes-Benz EQS 580 4MATIC. The contact stated that while attempting to open the front driver’s side door, the door sensors failed to detect a hand and retracted independently and closed on the right index finger. Medical attention was not sought. The failure mileage was approximately 63,350
2023 Mercedes-Benz EQS · Electrical System · filed with NHTSA Sep 25, 2026 · ODI 11766894
Car had a burning smell when entered and so stopped the car and had it towed to the dealership on 9/20/26 (Mercedes Benz of Laguna Niguel). Dealer said that a "liquid beverage were spilled onto the rear passenger seat are, resulting in liquid intrusion and a short circuit at the rear SAM control unit.
2025 Mercedes-Benz EQE · Electrical System · filed with NHTSA Sep 23, 2026 · ODI 11766383
On April 15, 2026 at approximately 1:30 PM PT, I entered my 2023 Mercedes-Benz EQE SUV 500 4MATIC (approximately 20,000 miles) in my garage. The vehicle was not plugged in or charging prior to entry. I opened the car, sat in the driver's seat, and authenticated via the fingerprint scanner.
2023 Mercedes-Benz EQE · Electrical System · filed with NHTSA Apr 16, 2026 · ODI 11731586
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 group94 other manufacturer communications filed against these Mercedes-Benz models under the same component group (electrical system), newest first. The eight newest are listed; the rest are on the Mercedes-Benz list.
| Number | Kind | Dated | NHTSA’s summary |
|---|---|---|---|
| LI54.30-P-080963 | Service bulletin | Sep 17, 2026 | Complaint Issue after OTA Update IC Odometer Reading blank("_ _ _ _") IC Maintanence data unavailable Cause OTA Update E61.0 Remedy In the I… |
| LI82.60-P-080383 | Service bulletin | Sep 15, 2026 | Complaint Radio station cover art does not refresh when switching stations. The UI continues to show the old station’s artwork instead of up… |
| LI54.71-P-079104 | Service bulletin | Sep 11, 2026 | Complaint Traffic sign symbol for "Traffic Sign Assist" is blinking in instrument cluster without obvious cause usually with one of the foll… |
| LI82.85-P-079088 | Service bulletin | Aug 14, 2026 | Complaint The following most common complaints may be observed: • Brief connectivity interruptions when using Apple CarPlay over Wi-Fi • Aud… |
| LI54.65-P-080132 | Service bulletin | Aug 12, 2026 | Complaint 1. General Diagnostic Tips 2. One or More PARK Sensor Activations 3. Red Ring Around Vehicle 4. "Active Parking and Parking Assist… |
| LI54.10-P-080880 | Service bulletin | Aug 12, 2026 | Complaint Customer Complaint: - AC charging is not possible. - The departure time, charging pause, location-based charging or target SOC lim… |
| LI54.10-P-080881 | Service bulletin | Aug 11, 2026 | Complaint AC and DC charging are not possible. The white LED on the charging inlet completely goes OFF after plugging in the charging cable.… |
| LI46.10-P-078012 | Service bulletin | Jul 17, 2026 | Complaint Hand detection system – malfunction / vehicles with code 266 Fault message in instrument cluster: "Active Emergency Stop Assist no… |
Quote the number at the service desk. It is what the dealer’s system is keyed on.
Every manufacturer communication NHTSA holds for Mercedes-Benz, by the number printed on the letter.
Common questions
Source: NHTSA, 49 CFR 579.5Is Mercedes-Benz LI47.70-P-079341 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 LI47.70-P-079341 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 Mercedes-Benz warranty extension on file lists the ones Mercedes-Benz has filed.
Which vehicles does LI47.70-P-079341 cover?
The manufacturer filed it against 11 model years: 2025 Mercedes-Benz EQE, 2024 Mercedes-Benz EQE, 2023 Mercedes-Benz EQE, 2025 Mercedes-Benz EQS, 2024 Mercedes-Benz EQS, 2023 Mercedes-Benz EQS and more. Whether one particular vehicle is affected is a matter of its VIN and its build, not its model year alone.