Mercedes-Benz bulletin LI54.30-P-078309
What it saysComplaint Head-up display permanently or sporadically unavailable - with warning message in driver display (see attachment) Head-up display permanently or sporadically unavailable - without warning message in driver… NHTSA’s full summary ↓
Mercedes-Benz filed this with NHTSA as a service bulletin dated Feb 10, 2026, received Aug 30, 2024, about the electrical system — 9 documents under this number. It names 16 model years (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.
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What the bulletin says
Source: NHTSA's summary of the manufacturer's communicationComplaint Head-up display permanently or sporadically unavailable - with warning message in driver display (see attachment) Head-up display permanently or sporadically unavailable - without warning message in driver display Display permanently or sporadically discolored and out of focus (see attachment) Cause Software for the A40/12 - Head-up display and N133/1 - Instrument cluster (IC) Remedy Software for the A40/12 - Head-up display and N133/1 - Instrument cluster (IC) is now available. Please update both control units. TIPS cases are no longer needed. Note that issues may still occur even after the software updates. Please do not replace any parts. We will inform you as soon as a solution is available. Note: Please do not replace any parts for this complaint. NOTE: The information contained in this document is intended for use by trained, professional technicians with the knowledge to properly and safely perform diagnosis and repairs on Mercedes-Benz vehicles, using Mercedes-Benz approved tools and equipment. It informs service technicians about conditions that could occur in certain vehicles and provides information that could assist in proper vehicle diagnosis, service, or repair. It does not indicate that a defect is present in any vehicle referenced in this document nor does it imply warranty coverage. DO NOT assume that a symptom or condition, or a described cause of a symptom or condition, affects any particular vehicle or groups of vehicles, or that a described repair applies to any particular vehicle or groups of vehicles. There can be multiple causes resulting in the same or similar symptoms or conditions described in this document, and trained professional service technicians must use their diagnostic skills to make evaluations on a case-by-case basis. The information contained in this document does not guarantee warranty coverage nor does it extend the vehicle’s warranty in any way.
Documents filed under this number
| Document | Kind | Dated | NHTSA id | At NHTSA |
|---|---|---|---|---|
| LI54.30-P-078309 | Service bulletin | Feb 10, 2026 | 11028734 | PDF, 735 KB |
| LI54.30-P-078309 | Service bulletin | Oct 29, 2025 | 11024547 | PDF, 735 KB |
| LI54.30-P-078309 | Service bulletin | Oct 24, 2025 | 11024515 | PDF, 735 KB |
| LI54.30-P-078309 | Service bulletin | Jul 11, 2025 | 11020697 | PDF, 735 KB |
| LI54.30-P-078309 | Service bulletin | Jun 12, 2025 | 11019638 | PDF, 735 KB |
| LI54.30-P-078309 | Service bulletin | Apr 21, 2025 | 11017132 | PDF, 735 KB |
| LI54.30-P-078309 | Service bulletin | Mar 7, 2025 | 11015554 | PDF, 735 KB |
| LI54.30-P-078309 | Service bulletin | Jan 28, 2025 | 11013194 | PDF, 734 KB |
| LI54.30-P-078309 | Service bulletin | Aug 19, 2024 | 11006678 | PDF, 734 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 themA 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 16 model years this bulletin names have filed 625 complaints with NHTSA since 2015. 155 of them name Electrical System, Exterior Lighting — 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 2020 Mercedes-Benz GLE-Class, the 13 owners who gave an odometer reading for Electrical System reported it at a median of 6,615 miles. That figure is one model year’s, not the whole range this bulletin covers — medians from different model years are not averaged.
As I approached a red light and removed my foot from the gas pedal to brake, my dashboard displayed several alarming messages: “Active Brake Assist Functions Limited See Owner's Manual,” “Active Blind Spot Assist Inoperative,” “To Deselect P or N Depress Brake and Start Engine,” and “Traction Control Inoperative See Owner's Manual.”…
2022 Mercedes-Benz GLS-Class · Electrical System · filed with NHTSA Jun 4, 2024 · ODI 11592527
The left side of the digital instrument cluster in my 2022 Mercedes-Benz GLE 450 intermittently goes completely blank while driving. When this occurs, I cannot see critical vehicle information, including my speed, fuel level, warning indicators, and other important vehicle functions. The failure happens randomly and without warning.
2022 Mercedes-Benz GLE-Class · Electrical System · filed with NHTSA Aug 30, 2026 · ODI 11760749
Dashboard screen went black. No information available. Speed, RPM, all warning lights, turn signal lights and all information like fuel level etc. Everything total blank…happened twice and reported to MB dealership but they could not replicate the issue. Have photo of blank screen. Not aware of speed while driving or any warnings
2023 Mercedes-Benz GLE-Class · Electrical System · filed with NHTSA Sep 23, 2026 · ODI 11766441
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 group88 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 |
|---|---|---|---|
| LI47.70-P-079912 | Service bulletin | Sep 29, 2026 | Complaint Vehicle will not start after DC charging Warning in the instrument cluster related to High‑voltage on board electrical system The… |
| 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… |
| NCU - 2026090001 | Service campaign | Sep 11, 2026 | Mercedes-Benz AG, the manufacturer of Mercedes-Benz vehicles, has determined that on certain subject vehicles, the control unit software for… |
| 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… |
| ANN - MY27 XENTRY Comm. | Other | Sep 11, 2026 | A solution for the XENTRY and MY27 167 communication issue is now available through addon 26.6.1.33608. If after ensuring you've installed l… |
| LI54.21-P-080326 | Service bulletin | Sep 9, 2026 | Complaint CEL light on with no drivability concerns. Cause Signal timing error. Remedy 167, 465: SW has been released. Update the FSAM to th… |
| LI82.60-P-079747 | Service bulletin | Sep 4, 2026 | Complaint The Apple Music app is no longer available in the head unit apps menu after updating the software of the… |
| 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… |
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 LI54.30-P-078309 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 LI54.30-P-078309 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 LI54.30-P-078309 cover?
The manufacturer filed it against 16 model years: 2026 Mercedes-Benz GLE-Class, 2025 Mercedes-Benz GLE-Class, 2024 Mercedes-Benz GLE-Class, 2023 Mercedes-Benz GLE-Class, 2022 Mercedes-Benz GLE-Class, 2021 Mercedes-Benz GLE-Class and more. Whether one particular vehicle is affected is a matter of its VIN and its build, not its model year alone.