2022 Mercedes-Benz EQS 450+ Electrical Problems

The speed limit indicator included in the software package flashes constantly (approximately once per second), both inside the instrument cluster and in the Heads Up Display. The speed limit shown is almost always not accurate to the current speed limit, even when passing multiple very clear road signs showing the speed limit. The car still flashes when the speed limit it is showing is not being exceeded. Furthermore, when it cannot read the speed limit, the indicator will often flash road signs for other countries. All of this is happening within the field of view of the driver due to the Heads Up Display, causing a visual distraction which could result in accident. Mercedes and the dealer are aware of the issue, and according to my local dealer Mercedes promised to fix it last year, and then promised again to fix it by Q1 of 2026, both deadlines having passed. This same information was corroborated by a post on Reddit from a user who spoke with Mercedes. When I spoke to Mercedes support on the phone they indicated that my particular car was not even supposed to have this road sign feature, so the fact that it is appearing on my car is incorrect.

NHTSA ID

11734309

Incident

Apr 28, 2026

About 1000 feet after merging onto a 4 lane freeway with sparse traffic, we were driving the car in the 3rd lane from the right. Suddenly the car's steering wheel took a hard right turn, forcing the car through multiple other lanes and onto the shoulder of the freeway, through an unpaved area, nearly colliding with freeway signs. I was able to regain control of the car before a collision and get back on the freeway. I continued on the freeway at a lower speed and after another 1000 feet or so, the car's steering wheel once again took a hard right turn, forcing the vehicle onto the shoulder, and colliding with a railing and a freeway sign. During this second instance, the lighting inside the car when off completely. During both off these episodes, I had my foot off the accelerator and the brake. Automatic Driving and Driver Assist were disabled. The safety of my self and my passenger were put at risk. The car was free of any warning lamps or inspection warnings prior to the accident. The car is currently in a repair shop.

NHTSA ID

11708793

Incident

Jan 1, 2026

I was on interstate hwy the car had a Mal-function indicator and the drive train locked up. brakes did not work, steering did not work the car spinner 3 times and was stopped by hitting the concrete barier. the air bags did not work either. I believe the entire battery or power system had shut down as I also got the 12 v back up battery is running out.

NHTSA ID

11678182

Incident

Aug 2, 2025

See attached document for complaint

NHTSA ID

11576242

Incident

Sep 2, 2023

The 2022 Mercedes EQS 450 has been an ongoing dangerous driving experience for me. I have been jolted and frightened over and over as the car's autonomous emergency system fully engages when driving as well as when it does not engage when I’m stopped at a light. I have expressed my safety concerns on numerous occasions to the management at the dealership. As I am writing this I see on your website, there is an unrepaired recall on this car with a remedy not yet available. In April, 2023, the car stalled and the messages below appeared on the dashboard: Attention Assist System Suspended Malfunction. Drive at max. 50 mph Stop Vehicle Level Too Low When the car was at the dealership, I was told, while it is a new model, they are trying to figure out the problem. I no longer want to be a guinea pig and endanger my life driving this car. In October, I backed into a low brick wall when the sensors did not alert me. At that time, I told the service department about the sudden braking and stalling. I had the damage repaired, costing $7000 and was told all was fine with the electrical panel. The dealership is now telling me after the car was there for 2 weeks, the car is fine. After being told this in October and with ongoing issues, I have no reason to expect it to be any different this time? I feel unsafe driving this car and do not want to jeopardize my life. Originally I was told Mercedes is aware of these issues and they would offer me a buy back and walk away. Now they are saying the car is fixed but Mercedes will offer me $5000 towards a trade-in and $70,000 for my car with less than 3000 miles. Offering me a substantially less amount of money than I paid for the car with on going safety issues is not acceptable.

NHTSA ID

11521912

Incident

Apr 10, 2023

While driving at approximately 45 miles an hour with nothing in front of me and no objects in the road, the vehicle activates the emergency braking system and attempts to stop in the middle of the road. It activates the seatbelt retentioners, as well as all of the safety warnings at the time. It does this with no apparent warnings or trouble lights on the dash. This puts me at risk to injury to my body being thrown around, neck and head threw forward. It also stops in the middle of the road potentially causing me to be rear ended. This happened at 500 miles on the odometer and at 1041 miles. I only took delivery in December. It has happened twice.

NHTSA ID

11502966

Incident

Jan 20, 2023

On several occasions driving at 50+ mile per hour maintaining a safe distance and with no hazards around, the vehicle abruptly stops and the last time it skid damaging my rim. 1) It appears that the electronic braking system (EBS) is defective. 2) My safety as well as vehicles behind me are at risk of collision due to this problem. 3) I brought this vehicle to the dealership and they claimed that they worked on it and asked to come back if this issue happens again. 4) This vehicle has been taken to the dealership but I'm not sure if it was inspected by the manufacturer. 5) There were no warning lights, no messages or any symptoms which makes this nerve wrecking since it can happen at any moment. The first time this occured was in April 2022, then in July 2022, September 2022, and finally December 2022 at which point I brought the car to the dealership since I feel that I'm in danger as well as other motorists/pedestrians while this car is on the road.

NHTSA ID

11497454

Incident

Dec 2, 2022

On four instances my car thinks that there is an object in front of it and automatically initiates emergency breaking. It happened today TWICE at 67mph on a highway and I almost got smashed by semi behind me!!!

NHTSA ID

11477627

Incident

Aug 4, 2022