2022 Mercedes-Benz EQS 450+

NHTSA received a petition on or about July 18, 2022, requesting that Federal Motor Vehicle Safety Standard (FMVSS) 141 be applied to all electric and hybrid vehicles operating in the United States. The petition can be reviewed at NHTSA.gov under ODI Number 11486072. FMVSS 141 establishes performance requirements for pedestrian alert sounds for motor vehicles. The standard applies to hybrid and electric vehicles that have a gross vehicle weight rating of 4,536 KG or less or are defined as low-speed vehicles. The standard became fully applicable to all such vehicles manufactured on or after March 1, 2021.On January 27, 2023, NHTSA opened Defect Petition (DP) 22-005 to evaluate the subject matter described in the petition. On June 24, 2023 and as supplemented on June 25, 2023, the petitioner notified NHTSA he was withdrawing his petition. The petitioner indicated that, based on his review of data, there is no justification for asserting potential benefits that could be derived from actions sought by my petition. Based on the petitioner's withdrawal, DP22-005 is closed. Closure of this DP does not represent a determination by NHTSA regarding the subject matter of the petition.

My 2022 Mercedes-Benz EQS 450+ repeatedly showed "Active Brake Assist Functions Limited," "Active Emergency Stop Assist Inoperative," and Blind Spot Assist warnings, photographed by September 23, 2026. On September 24, I reported these issues and showed photos to an authorized dealer. Electronic repairs were performed, but warnings returned. The repair record lists Blind Spot Assist as "not verified"; I have no record of an Active Brake Assist test. On October 8, while turning left across oncoming traffic, the car was in a collision. Automatic emergency braking did not activate. I know the distinctive sudden braking sensation from previous experience. I cannot determine whether activation was expected in these circumstances. Police attended, and the insurer declared a total loss. The car is at Copart; preservation for inspection has been requested but not confirmed. Please investigate a possible safety-system defect.

NHTSA ID

11773071

Incident

Oct 8, 2026

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

The contact owned a 2022 Mercedes Benz EQS 450. The contact stated that while driving approximately 15 MPH and approaching a parked vehicle on the side of the road, the contact depressed the brake pedal; however, the vehicle failed to stop. There was no warning light illuminated. Due to the brake failure, the front passenger’s side bumper crashed into the rear driver’s side bumper of the parked vehicle. The contact stated that the vehicle continued to maintain the same speed while depressing the brake pedal. The contact stated that after passing the first vehicle, his vehicle independently took a right turn and continued driving onto the sidewalk and onto the driveway of a home before crashing into the vehicle parked in the driveway which pushed the other vehicle into the garage door. The parked vehicle that was pushed into the garage door then struck the vehicle that was parked inside the garage. The contact stated that the brake pedal was being depressed throughout the failure; however, the vehicle only came to a stop after crashing into the parked vehicle in the driveway. The contact stated that the air bags had not deployed during the crash. The contact was taken to the hospital by ambulance and was treated for back pain, neck pain, and shoulders. A Police report was filed. The vehicle was initially towed by the Police Department and then to an undisclosed location before the contact and the Insurance Company had the vehicle towed to Millenium Auto Body which was an authorized Mercedes-Benz repair facility. The vehicle was deemed a total loss. The dealer and the manufacturer were notified of the failure and a case was filed with the manufacturer. The contact stated that a total of three vehicles and the garage door were damaged due to the brake failure. The contact stated that prior to the crash, the contact stated that the vehicle would intermittently stop abruptly. The contact stated that the forward sensor would perceive that there was an object in the road and activate the Forward Collision Avoidance syst

NHTSA ID

11652625

Incident

Mar 15, 2025

Mileage

100,000 mi

My car has experienced spontaneous power loss and shutdown on four separate occasions since December 21, 2024. The first occasion was on [XXX] on [XXX] (a major road with a 45mph speed limit) where the car made a loud pop sound and juddered to a stop). It would not restart immediately leaving my family and I stuck in the center lane of a relatively high speed and busy road). The second occasion was on that same drive when it exhibited the same ‘pop’ sound and total power loss—this time on a busy 50 mph curving road. I managed to nurse it to a side street where it would not immediately restart and had to be flat bed towed to the dealership (Mercedes of Plano) The car was in the shop for approximately a week and a half while it was repaired by updating the software. On [XXX] the car again lost power spontaneously on our street and was again towed via flat bed to the dealership. It has been at the dealership since then and they have reloaded the software and test drove it multiple times. I was slated to pick the car up again when I got a message from Mercedes of Plano that the car had failed on them and would not restart. They have escalated this issue with Mercedes and opened a TIPS case for specialized support from Mercedes. I am happy to INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

NHTSA ID

11646631

Incident

Dec 21, 2024

Was getting on the freeway and speed up to highway speed 70 mph in Oklahoma City and Drive train malfunction appeared, got off next exit and park in parking lot

NHTSA ID

11645465

Incident

Feb 22, 2025

I reported last week about the brakes automatically coming on Tracking #11631195 It happened again today in reverse at 2-3 mph. Brakes activated and jolted me

NHTSA ID

11632010

Incident

Dec 22, 2024

Complaint When switching the front passenger display on and off, sporadic images may be shown that are similar to stains on the display. This complaint need not be a permanent one, it may disappear again on its own. Attachments 1648459315482 (1).jpg 1648459315528.jpg Cause Implausible video transfer from head unit during start and switch‑off sequence. These images (artifacts) are of a purely cosmetic nature only and they do not impair the function. Remedy Software update of MBUX (A26/17) to software release E316.5 or higher.

Complaint When switching the front passenger display on and off, sporadic images may be shown that are similar to stains on the display. This complaint need not be a permanent one, it may disappear again on its own. Cause Implausible video transfer from head unit during start and switch‑off sequence. These images (artifacts) are of a purely cosmetic nature only and they do not impair the function. Remedy Software update of MBUX (A26/17) to software release E316.5 or higher.

Complaint Slight creaking noises when steering. Cause Noises may come from one or more sleeves of the horn contact plate. Remedy Remove the horn contact plate and check the sleeves for noise; see attached video. If necessary, apply lubricant to the sleeves.

A software update will be performed that provides enhancements to the robustness and system stability of the communication module. The update is free of charge and runs in the background, which takes about 8 minutes to install. During this time, the vehicle can be driven without any restrictions, and the new software will be active with the next ignition cycle. Remedy MBUSA will conduct an OTA service campaign. Remote software updates are automatically downloaded and installed in the customer’s vehicle free of charge and do not require a dealer visit.

Complaint Repeat workshop visit for vehicle vibration while braking from 60MPH. NOTE: Although the symptom is similar to a tire or wheel vibration, it is usually readily noticeable that it is distinctly different if it happens at all times or only while braking. Cause Although the cause of the vibration is most likely due to excessive lateral runout on the rotor or hub/wheel bearing, the system as a whole needs to be checked for other possible contributors. 1. Prior collision damage. 2. Excessive vehicle sitting times without rotating components. 3. Wheel bearing/hub lateral runout. 4. Wheel mating interface has been overtightened (did not follow WIS torque procedures). 5. Mating interfaces have been excessively modified (painted, gouged, bent, etc...). Remedy Read through the entire attached worksheet prior to performing. After performing, please review the final page and perform work accordingly. NOTE: This document is not pre‑authorization or otherwise dealing with warranty. This is intended for diagnostic purposes only. If there are any questions on how to proceed OR The work sheet has been performed and the vehicle has returned with the same concern. Please perform the measurements as seen in the worksheet again and open a TIPS case to the Body, Chassis, and Entertainment team.

Complaint Issue after OTA Update IC Odometer Reading blank("_ _ _ _") IC Maintanence data unavailable Cause OTA Update E61.0 Remedy In the IC Control Unit Log, please check the following information: Verify whether DTCs B228229, B228287, and B226656 are present in either A or A+S. Verify that Status Schlüssel‑ID = "ID is not valid" and Anlernstatus = "IC is initialized", as shown in the attached image (image_2). Please run the XENTRY guided test for the listed DTCs and provide the results.