2021 MERCEDES-BENZ AMG GLE53 Complaints

It is incredibly distressing to have experienced an issue that is widely reported in this database and online forums, and remains unaddressed by MBUSA. It also seems to be an entirely preventable issue that can be fixed via a software update. The issue relates to a malfunction of the 48V battery that made the vehicle inoperatable. It happened in the midst of winter and we would be been in a dire position if our family did not come to the rescue to pick us up. The vehicle had to be towed to a dealership. Here is the dealer summary: 48v software vehicle has no power, connected jumper, battery lights on in dash, towed into shop and connected battery charger, performed quick test, found codes in 48v- B183349 and B183371 , referred to Topic # LI54.10-P-069698 remedy #2, performed guided test for B1833349, as per guided test updated 48v software and commissioned, after completion vehicle started normally, performed extended test drive and multiple short test drives to verify vehicle now operating as designed again, lights no longer present in dash.

GLE53 would not start. The car threw an error stating 12v battery malfunction.(Impacted the 48V battery) This essentially disables the vehicle completely. This is 2021 GLE53 with less than 5000 miles. There is also an issue with the side-view mirror and wind noise.

Issue-The car brakes aggressively using cruise control (Mercedes Distronic) with no driver intervention. This dangerous condition can cause an accident. Using my advanced cruise control…the issue is my set speed was changed along with acceleration or braking when a traffic sign is misread. I have turned off the only setting controls Traffic Sign Assist & Route Based Speed Assist but there is no change. Example of issue-My car was misreading 80mph as 60 & braking aggressively. .My prior 2020 GLE misread signs less often and did not change the speed setting or brake the vehicle. The Dealer applied all available software updates. After all the updates my car continues to adjust set speed to every misread traffic sign. For example recently I had my speed set at the posted speed of 80 and the car read a sign as 70, changed the 80 to 70, and started braking aggressively. In Idaho there are stacked signs-the upper one reads 80 and below “Trucks 70” so this happens about 50% of the time. The vehicle misreads signs often.

The contact owns a 2021 Mercedes-Benz AMG GLE53. The contact stated that while the gear shifter was in PARK, the vehicle was still rolling. In addition, the vehicle failed to stay in reverse and in neutral. The contact mentioned that the parking brake was activated to keep the vehicle from rolling away. The vehicle was taken to the dealer where they informed the contact that the vehicle was operating as designed. The vehicle was not repaired. The manufacturer was not notified of the failure. The approximate failure mileage was unknown.

The contact owns a 2021 Mercedes-Benz GLE53. The contact stated the vehicle would not start. The contact stated that he was unable to jumpstart the vehicle. The vehicle was towed to the dealer who diagnosed that the battery needed to be replaced. The vehicle was repaired. The contact also stated while driving the vehicle would misread speed limit signs on the road and would shift gears on inadvertently. The dealer was made aware of the failure. The manufacturer was not made aware of the failure. The vehicle was not repaired. The approximate failure mileage was 4,800.