Summary: Transmission automatically shifts out of drive into neutral. Loss of ability to accelerate when transmission shifts to neutral. No preemptive warnings from the vehicle prior to incident. After transmission shifts to neutral, warning displaying, "Do not shift, bring vehicle for service" appears on multifunction display. Same safety issue as described in NHTSA recall #: 21V-033. Sequence of events: When driving on the highway, transmission automatically shifted from drive to neutral, resulting in a loss of power. Was able to coast to side of highway safely, but could have resulted in an accident with multiple vehicles on busy highway. The vehicle was towed to a Mercedes Benz dealership where the dealership inspected the vehicle and diagnosed the problem as low main battery voltage preventing proper communication among the powertrain control modules. Battery was replaced by dealership as recommended but problem still persists. The issue is reproducible and occurs every time after about 20-30 minutes of normal driving. Additional Details: - Transmission/transmission control module failure while vehicle was in motion. Vehicle is available for inspection upon request. Problem is reproducible and occurs after approximately 20-30 minutes of normal driving. - Sudden and unexpected loss of ability to accelerate significantly increases the risk of a crash. - The vehicle was inspected and diagnosed by Mercedes Benz of Owings Mills in Owing Mills, MD. However, the problem was misdiagnosed by the dealership. - No warnings or messages displayed in the vehicle prior to each occurrence. However, vehicle displays warning message after each occurrence. - Have been in contact with Mercedes Benz USA in regards to this issue, but they have declined to assist with recalling the vehicle.

- Rockville, MD, USA

The contact owns a 2018 Mercedes-Benz GLA250. The contact stated while his wife was driving and the vehicle was stationary at a traffic light, the vehicle shifted independently into neutral(N). The contact stated no warning light was illuminated. The driver restarted the vehicle and was able to continue driving to her destination. The contact towed the vehicle to the local dealer, where it was diagnosed with needing the battery replaced. The vehicle was repaired but continued to experience failure. The vehicle was not drivable. The contact stated that the failure was experienced several times. The manufacturer had been informed of the failure. The failure mileage was approximately 45,000.

- Newark, DE, USA