There are 10 owner-reported driver assist & adas complaints for the 2022 Mercedes-Benz EQSin NHTSA's database. These are unverified consumer reports and may not reflect confirmed defects.
My wife has experienced six emergency braking events where there was no other car around. Three of the events have occurred at the exact same place. First event: backing slowly out of a parking space and the car suddenly stopped with no traffic in the area Second event: Backing out of a parking space (no other cars in the parking lot) and the car suddenly stopped Third event: Going forward in the Interstate at about 60MPH when the car suddenly stopped Fourth through Sixth events: Going forward on a city street between 30-40MPH when the car suddenly stops at the same exact place (different times of day). Three different dealers have been dealt with. Each one says that they cannot recreate the issue but that it should be cleared up with the next software update. Yet, it continues to happen. Manufacturer has been notified but has not asked/offered to inspect the vehicle or the area where the issue can be recreated (however, we have recently notified the manufacturer - we relied on the dealerships in the past year). Police nor insurance representative have inspected (nor been asked to in all fairness). Each time, either immediately before or contemporaneous with the braking has been a loud audible beep. Safety of the general driving public is at risk, not just the driver and occupants of the vehicle, because a sudden emergency braking incident with no hazard present is dangerous and can create the exact issue that the system should be preventing: a collision. The date of the incident listed is the approximate date of the last incident. The first one was in the Spring of 2023. The vehicle was purchased used in January of 2023 with approx. 4k miles on it. It now has 16,640 miles on it.
The contact owns a 2022 Mercedes-Benz EQS450. The contact stated that while driving at an undisclosed speed, the Forward Collision Avoidance feature engaged several times, causing the vehicle to brake unintendedly. The contact stated that there were no vehicles or objects in front of the vehicle when the failure occurred. The contact stated there were no warning lights illuminated. The vehicle was taken to a local dealer, where it was diagnosed that a software update needed to be performed to fix the issue. The repair was pending. The contact stated that the vehicle had previously been repaired due to the same failure. The manufacturer was made aware of the failure and a case was opened. The failure mileage was approximately 11,500.
The “Active Assist” features of the vehicle [Blind Spot Assist, Braking Assist, Distance Assist, Emergency Stop Assist and Lane Change Assist - was not able to check all of these above because of the selection limit] have repeatedly and randomly become inoperative while I was driving the car. I have expressed my safety concerns with the service department and management of the dealership that sold me the car. While they have returned the car to me with the malfunction temporarily cured, it has recurred on more than three occasions, sometimes “fixing” itself and other times requiring dealer intervention. The dealership cannot assure me that it is fully and finally “fixed” and I have no reason to believe that the issue will not recur as it has so many times in the past. The dealer also refused my request to say it cannot be fully and finally fixed, but their offer of $50,000 for this car (less than half of the total purchase price for a car with only approximately 14,500 miles) on a trade for a used 2022 model priced at $110,000 is some indication that they view my vehicle as flawed. I do not feel safe in the car and their offer requiring me to take a substantial haircut on this purchase is not acceptable, particularly since they cannot (or will not) confirm one way or the other whether the issues are fully and finally fixed.
Automatic emergency brakes triggered twice on me even though there was no emergency or obstruction anywhere near me. One incident occurred as I was trying to drive onto a car ferry, the braking system triggered as I neared an expansion joint on a bridge. Second incident occurred as I was driving straight ahead. Car was coming opposite direction in their own lane. Auto emergency brakes triggered again. Ended up with a sore neck and headache from the second incident
Driving on residential street at 25 miles an hour with no traffic. Car applied emergency brakes which threw everyone forward. Fortunately no other cars behind me. Very dangerous. This has also happened on the main road at 45 miles an hour,
The contact owns a 2022 Mercedes-Benz EQS450. The contact stated while reversing out of the driveway, the vehicle experienced phantom braking. The contact stated that while driving 30 MPH, the failure recurred while there was no vehicle or objects nearby the vehicle. The contact stated that while driving 40 MPH, the failure recurred, and the contact was propelled towards the steering wheel. An unknown warning light was illuminated. The vehicle was taken to the dealer, where an unknown software update was completed; however, the contact requested about a buy back because he was concerned for his safety. The contact was unsure whether the vehicle was repaired. The manufacturer was notified of the failure, and a case was filed. The dealer later informed the contact that the manufacturer had denied the buyback request. The failure mileage was approximately 7,000.
I was traveling at 10 mph on a two lane road in clear conditions at 4 p.m. A single car was parked legally ahead on the right and there was a single safety cone present, off the road (on the shoulder) and further ahead on the left. The road was perfectly clear for driving. Without any warning, visual or sound, the autonomous emergency braking system fully engaged and brought the car to a dead stop. The driver information system reported nothing. There was no car behind and no collision occurred. It has left a concern that the autonomous breaking system could be triggered erroneously in the future.
I was driving at around 45 MPH, without any cars around me, and suddenly the car abruptly stopped. There were no obstacles or any reason for the automatic emergency brakes to engage, and thankfully there were no other cars around, or else there would have been a collision. This was a very frightening experience, and I am thankful this didn't happen on the highway or at a higher speed, as that would have resulted in a significant accident. I have only had this car 3 weeks!!
Driving on I-75 south of Ocala as I drive by the State Weigh Stations the EQS sees a 45 MPH speed limit sign off to the right so the Adaptive Cruise Control starts drastically reducing my 75 MPH to 45 MPH in the passing lane. I have to floor it to maintain speed. This has also happened as I drive by a left entry ramp with a reduced speed limit
On two instances the car thinks that there is an object in front of it and automatically initiates breaking. Today it did that and a driver almost collided into me.
Complaints are unverified consumer reports submitted to NHTSA. A high complaint count may reflect vehicle popularity, not defect severity. Data sourced from NHTSA public records.