2021 Mercedes-benz GLS-Class Complaints

On four occasions my car has stalled while in traffic very early in my ownership and then it happened again today with my family in the car and nearly caused an accident. The entire dash lights up with every warning when it happens. Sometimes the check engine light comes on after I shut the car off and restart it. My Mercedes dealer has had it in multiple times for this reason. The last time it was in for this (May of 2022) they "reprogrammed" the entire car. It happening again today has really made me lose a lot of faith in the vehicle, especially since we purchased it for the safety factors. I read online that there are many others who have experienced this. Some say it is related to the 48V battery. I don't care what Make or Model or how expensive it is, a new car should NOT stall in traffic and should be looked into. Thank You.

Repeated failures of 48 volt battery system has shut vehicle totally off while under highspeed and in traffic

Incident 1: May 2022 Vehicle was sitting in driveway overnight and would not start in the morning. Had a 48V battery warning on. Towed to dealership. Said it was a delay software update. Incident 2: August 2022 Was driving 35mpg down the road where a warning sign comes up. Then shortly after the car slows down to around 15mph and would not speed up anymore. Towed to dealership. Dealership did not find anything "wrong" with vehicle Incident 3: November 2022 Car was parked in parking lot for 2 hours. When trying to start car, there was an error message saying stop vehicle. Towed to dealership. Dealership stating they might exchange a new 48V battery.

Continuous malfunctioning front windshield wipers. In light to medium rain/wet condition the wipers chatter/jump on the windshield, leaving residue on windshield and causing substantial distraction to driving and even discourages use of wipers (leaving visibility poor). Mercedes Dearler/Service center has attempted multiple remedies over time but to no avail. Internet search of multiple forums on the web show many people with similar issues so thought it would be relevant for NHTSA to know. Issue is ongoing.

Car would not start, 48 volt system failure