Transport CanadaMedium Risk
2021 MERCEDES-BENZ MAYBACH S-CLASSTransport Canada Recall #2021673
The official notice
Defect
On certain vehicles, a software problem could cause the engine to shut off shortly after being started, and you may not be able to restart it.
Safety Risk
A loss of engine power could increase the risk of a crash.
Remedy
Mercedes-Benz will notify owners by mail and instruct you to take your vehicle to a dealer to update the engine control unit software. Mercedes-Benz advises that you should run the engine for at least 15 seconds after starting it, before you begin to drive.
406 vehicles affectedMfr ref: 5499010Updated June 10, 2026