Mercedes-Benz Amg Glc 63 S E, Mercedes-Benz Amg Glc 63 S E Coupe, Mercedes-Benz Amg Gt 63 S E, Mercedes-Benz Amg Gt 63 S E Coupe, Mercedes-Benz Amg S 63 E, Mercedes-Benz Amg Sl 63 S E, model years 2023 to 2025. Filed by Mercedes-Benz USA, LLC and reported to NHTSA on 28 February 2025. 2,943 vehicles potentially affected.
What the notice says Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2023-2024 AMG GT 63 S E Performance 4-door coupe, 2025 AMG GLC 63 S E Performance, GLC 63 S E Performance Coupe, AMG GT 63 S E Performance, 2023-2025 AMG S 63 E Performance, and 2024-2025 AMG SL 63 S E Performance vehicles with a hybrid powertrain. A software error …
Is your vehicle included? Check with your VIN at NHTSA, or ask a dealer. This page is an independent copy of the notice, kept so you can see what changed after it was published. It is not the authority, and the authority’s own text is the one to act on.
The maker's own number for this recall: 2025030012. That is the number on the owner letter and on the dealer paperwork. 25V129 is the number NHTSA gave the same campaign, and the number this page is filed under. They are one recall, written two ways.
What the authority says can happen if this is not fixed: “A loss of drive power increases the risk of a crash.”
affected
in the notice
caught
| Campaign | 25V129 |
|---|---|
| Filed by | Mercedes-Benz USA, LLC |
| System at fault | Electrical System:Propulsion System |
| Reported to NHTSA | 28 February 2025 |
| Model years | 2023-2025 |
| Vehicles named | MERCEDES-BENZ AMG GLC 63 S E, MERCEDES-BENZ AMG GLC 63 S E COUPE, MERCEDES-BENZ AMG GT 63 S E, MERCEDES-BENZ AMG GT 63 S E COUPE, MERCEDES-BENZ AMG S 63 E, MERCEDES-BENZ AMG SL 63 S E |
What the notice says today
The defect
Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2023-2024 AMG GT 63 S E Performance 4-door coupe, 2025 AMG GLC 63 S E Performance, GLC 63 S E Performance Coupe, AMG GT 63 S E Performance, 2023-2025 AMG S 63 E Performance, and 2024-2025 AMG SL 63 S E Performance vehicles with a hybrid powertrain. A software error may cause the high-voltage starter alternator control unit to fail, causing a loss of drive power.
The consequence
A loss of drive power increases the risk of a crash.
The remedy
Dealers will update the high-voltage starter alternator control unit software, free of charge. Owner notification letters were mailed April 11, 2025. Owners may contact MBUSA customer service at 1-800-367-6372. MBUSA's number for this recall is 2025030012.
What it said before
Nothing has changed while we have been watching. We last read the wording of this campaign on 9 September 2026, and it matched the copy we already held.
That copy hashes to 492e30d5613b7560c69e62693917eca9…, so if it is ever edited the change is provable rather than a matter of memory.
This is one of 1,827 notices in the record whose component field names electrical system. Across that group the median wait before owners were written to was 41 days.
Last checked . No change has been recorded in the wording.
How to cite this record
Quoting the wording on this page means quoting a version, so the date belongs in the citation:
CarsMultiverse, recall 25V129, wording as read on 9 September 2026. https://carsmultiverse.com/recall/25v129/
The copy quoted above hashes to 492e30d5613b7560c69e62693917eca9…. If the notice is reworded later, that fingerprint will not match, which is how a reader checks that the quotation was of the version we say it was.
The cross-border matches used on this site are deposited as a citable dataset: doi:10.5281/zenodo.22087136. The recall wording itself is published by the national authority named above and is theirs, not ours.
The recall record and its wording are published by the US National Highway Traffic Safety Administration and are US Government public domain. The dated archive, the comparison and any before-and-after above are CarsMultiverse. How fresh every engine behind this page is, is public on the status page. To check a specific vehicle, use NHTSA’s own VIN lookup.
The fingerprint of this notice
We take a SHA-256 of each of the three blocks of text the authority publishes and keep the first eight characters. As we last read campaign 25V129 on 23 August 2026, they were:
- Defect summary
bd451747 - Consequence
1daa818d - Remedy
efac7f88
We first read this notice on 21 August 2026. It has not moved since. If it ever does, these characters will not match, and the change will be dated here.
The wording we hold for 25V129 · how the whole register is watched
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