Jan 5, 2026Transmission & drivetrainElectrical systemBrakes
We've had this car on lease for 23 months, and it has had an escalating pattern of electronic, mechanical and brake issues. Earlier today, on January 5, the car started to slow down and started shaking on the highway today and when I used the brakes the full body of the car started rattling and the brakes were far less responsive than they should have been taking far longer to decelerate than safe. There was an alarm with a turtle warning me to move over. On January 4, We parked our car in a parking lot and went into a store, when we returned all of the windows were lowered and the moonroof's window was also retracted. The car was beeping and making loud noises and then had issues starting. Prior to both of these issues, the car has taken to Mercedes repeatedly for locking passengers into the vehicle and blaring alarms, not allowing passengers to leave and the seatbelts will not retract. The airbag system has also malfunctioned during these periods. Mercedes has repeatedly been informed of these issues and has claimed that there were bugs in the car's code that they had fixed; however, each time they have fixed the issue a new issue has arisen. In late November 2025, a representative from Mercedes corporate asked for us to take the vehicle back to dealer for further inspection after which the dealership said they had carried out major updates and returned the car in early December. After that the car had been hardly driven until this week. This was the first major drive of over 60 miles.
NHTSA ODI 11708972
Sep 10, 2025Transmission & drivetrainBrakesDriver assistanceCrash
The Mercedes GLE450 was stopped at a red light. When the light turned green, the driver entered the intersection. The automatic braking system engaged without reason (there was open road ahead), bringing the car to a sudden standstill. The driver accelerated again, but this time the car went backwards into the car behind him. The driver had not shifted into reverse. So the car both slammed on the brakes, and switched the transmission into reverse, without driver input. Mercedes-Benz USA conducted an investigation and produced data showing that the car shifted into reverse while it was driving forward; they claimed this was driver error. However, the dealer (and our own experience) says it is impossible to shift the car into reverse when it is driving forward; the car must be stopped before it can shift into reverse. We have asked them to explain this seeming incoherence in their explanation, but they have not responded. Our conclusion is that the car malfunctioned. We still have the dashcam footage recorded during the incident, if that is needed.
NHTSA ODI 11686212
Jan 29, 2025Transmission & drivetrainBrakes
"While driving on the highway, my new Mercedes GLE450e, it suddenly stalled, and a 'turtle' symbol appeared on the dashboard. This indicated that the vehicle had entered 'limp mode.' At that point, I lost acceleration and had minimal power, making it difficult to maneuver safely. The dealership claims they have fixed the issue, but I am reporting this as a safety concern in case it affects other vehicles."
NHTSA ODI 11639487