NHTSA lists 2 safety recalls for the 2015 Mercedes-Benz S550 4MATIC. The newest, from November 1, 2019, covers the communication. Not every Mercedes-Benz S550 4MATIC of this year is affected: check your VIN to see whether yours is, and whether the free repair has been done.
2 recalls, newest first
RecallOver-the-air fixNovember 1, 2019
Communication
Mercedes-Benz USA, LLC. (MBUSA) is recalling certain 2013-2017 vehicles due to a software fault that may cause the date and time for the emergency call system (eCall) to differ from the actual date and time, potentially relaying an inaccurate vehicle location. For a full list of the affected models visit: https://static.nhtsa.gov/odi/rcl/2019/RMISC-19V787-4620.pdf
Risk: An inaccurate vehicle location may delay emergency responders, increasing the risk of injury.
Fix: MBUSA has initiated an Over the Air (OTA) remote update. MBUSA will also notify owners, and dealers will check software for a successful OTA or update the communication module software as needed, free of charge. The recall began December 23, 2019. Owners may contact MBUSA customer service at 1-800-367-6372. MBUSA's number for this recall is 2019120008.
Notes
Owners may also contact the National Highway Traffic Safety Administration Vehicle Safety Hotline at 1-888-327-4236 (TTY 1-800-424-9153), or go to www.safercar.gov.
Mercedes-Benz USA, LLC. (MBUSA) is recalling certain model year 2015 S550 4Matic Coupe, AMG S63 4Matic Coupe, and AMG S65 vehicles manufactured January 27, 2014, to April 2, 2015. In the affected vehicles, left-side front seat belts may have been installed on the right-side and vice versa. As a result, the installation angle may be incorrect, affecting the seat belt locking behavior. Additionally, the child seat restraint function for the passenger seat would not be available. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard (FMVSS) number 208, "Occupant Crash Protection," and FMVSS number 209, "Seat Belt Assemblies."
Risk: If the seat belt is installed improperly, it may not properly restrain the seat occupant in the event of a crash, increasing the risk of injury.
Fix: MBUSA will notify owners, and dealers will inspect the installation of the seat belts, correcting them as necessary, free of charge. The recall began on October 30, 2015. MBUSA's recall number is 2015100002. Owners may contact MBUSA customer service at 1-800-367-6372.
Notes
Owners may also contact the National Highway Traffic Safety Administration Vehicle Safety Hotline at 1-888-327-4236 (TTY 1-800-424-9153), or go to www.safercar.gov.
Enter your 17-character VIN on NHTSA's site to see which of these recalls apply to your car and whether they've been repaired. Repairs are free at any Mercedes-Benz dealer.
Recalls come from the National Highway Traffic Safety Administration's recall database, with the list of models updated October 7, 2026. A recall applies to some vehicles of a model year, not always all of them: your VIN tells you whether yours is included and if the free repair has been done.