The 2021 Mercedes-Benz AMG GT63S has 3 recalls, the most serious involving a starter motor cable that can chafe nearby wiring, causing a short circuit that may stall the engine or start a fire.
The seatbelt pretensioners on certain vehicles may not fire correctly in a crash, meaning the belt may fail to pull the occupant firmly into the seat at the moment of impact. A seatbelt that does not tension properly reduces the restraint system's ability to limit forward movement, raising the risk of injury. On the electronics side, a software issue in the MBUX multimedia system can cause the display to go black or restart after the vehicle is turned on. When this happens, the backup camera feed does not appear while reversing, leaving the driver without a view of what is directly behind the vehicle.