Owner-reported complaints naming the driver-assistance system, filed with NHTSA
Data refreshed
Driver assistance reportsComplaints are reports submitted to NHTSA by owners and drivers. NHTSA does not verify most reports before publishing them, and a complaint does not establish that a defect exists. Volume is influenced by how many of a vehicle were sold, how long it has been on the road, and how much attention an issue has received.
8
Latest Sep 19, 2025
Share of all reportsThis category as a share of every owner report on file for this model year. One report can name more than one component, so the categories overlap.
12%
of 67 total
Crash or fire reportedReports in this category whose submitter recorded that a crash or a fire occurred. The reporter's own answer on the NHTSA form, not a verified finding.
2
Injuries or deaths reportedTotals the submitters entered on their own reports in this category. Not verified by NHTSA and not a casualty statistic.
1
What this page shows
Reports naming forward-collision avoidance, lane keeping, back-over prevention, cruise control and related electronic driver-assistance systems. Every record below is an owner-reported complaint about the 2014 Mercedes-Benz ML350 submitted to NHTSA — not a confirmed defect, not a recall and not a manufacturer bulletin. 8 reports on file name it.
Complaints are reports submitted by owners and drivers to NHTSA. They are not verified and do not establish that a defect exists.
Owner reports naming driver-assistance
Shown in the owner’s own words, exactly as filed
Driver assistanceElectrical
Filed Sep 19, 2025
Vehicle: 2014 Mercedes-Benz ML350 VIN: [XXX] I have experienced repeated failures of the Blind Spot Assist / driver-assist system since purchasing this vehicle. When I first purchased the ML350 in Texas, the vehicle already showed warning messages (“Blind Spot Assist Inoperative / Pre-Safe Function Limited”). The dealer attempted repairs before delivery, but the defect persisted. After moving to New York, the problem continued. On June 26, 2023, I took the vehicle to The Automaster Mercedes-Benz in Shelburne, VT. Their diagnosis confirmed water intrusion into the blind spot radar sensors, consistent with Mercedes-Benz TSB LI54.71-P-056477. Both left and right sensors and wiring require replacement. This is a safety defect because Blind Spot Assist and Pre-Safe features are disabled without warning, increasing risk of collision when changing lanes. Many other owners have reported the same issue, and Mercedes has issued a TSB acknowledging the defect, but no recall has been provided. I request that NHTSA investigate this recurring safety problem and require Mercedes-Benz to provide coverage or a recall for affected vehicles. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)
NHTSA ID
11688328
Incident
Oct 17, 2017
Driver assistance
Filed Jul 24, 2025
The contact owns a 2014 Mercedes-Benz ML350. The contact stated that upon starting the vehicle, the blind spot warning light illuminated. The contact was unable to identify if another vehicle was nearby. The vehicle was taken to an independent mechanic who determined that the blind spot detection system was inoperative. The local dealer was not contacted. The vehicle was not diagnosed or repaired. The manufacturer was not contacted. The failure mileage was approximately 170,001.
NHTSA ID
11675826
Incident
May 1, 2025
Mileage
170,001 mi
Driver assistanceElectricalEngine
Filed Jun 30, 2025
I purchased a used Mercedes-Benz from Freehold Mitsubishi in early 2024. Within hours, serious safety issues appeared, including a check engine light, cylinder misfire, EVAP leak, traction control failure, and blind spot assist malfunction. The vehicle’s ECM and wiring harness were later found damaged due to oil leaks and electrical shorts. Despite multiple repair attempts, the vehicle was returned in worse condition and remains unsafe to drive. I am reporting these issues due to their potential risk to vehicle safety.
NHTSA ID
11670372
Incident
Apr 24, 2025
Driver assistanceElectrical
Filed Jul 24, 2021
3 electrical related issues within a few months. 1. Blind spot and Lane Departure warning come on and off while driving. 2. Blind spot yellow light comes on the side mirrors while applying break 3. This week the turn signal periodically stop working and each time have to stop kill engine and start engine again to reset but reset only last for a while.
NHTSA ID
11426314
Incident
Jul 24, 2021
Body & structureDriver assistance
Filed Dec 19, 2019
Crash reported
IN MY NEIGHBORHOOD APPROACHING A STOP SIGN ABOUT 20 YARDS AWAY. THE CAR ALL OF A SUDDEN ACCELERATED AT A HIGH RATE OF SPEED. I WAS GOING TOO FAST TO MAKE THE RIGHT TURN AND THE BRAKES DID NOT STOP THE CAR. I ENDED UP RUNNING THROUGH THE STOP SIGN UP AN INCLINE AND INTO THE WOODS HITTING MULTIPLE TREES BEFORE COMING TO A STOP. THIS CAUSED OVER $18,000 DAMAGE TO THE VEHICLE (NOT INCLUDING DAMAGE TO THE UNDER CARRIAGE). NOT ONLY WAS THIS PRETTY FRIGHTENING BUT WHAT COULD HAVE HAPPENED IF I WASN'T IN MY NEIGHBORHOOD WHEN THIS TOOK PLACE COULD HAVE KILLED SOMEBODY. IT REALLY SHOOK ME UP. THANK GOODNESS THERE WERE NO KIDS AT THE BUS STOP. I WAS ALSO SURPRISED THAT THE AIR BAGS DID NOT DEPLOY. THE INSURANCE COMPANY TOTALED THE CAR SO NO ONE REALLY SEEMS TOO CONCERNED ABOUT THE CAUSE OF THE UNINTENDED ACCELERATION THAT TOTALED MY CAR WHILE DRIVING IN MY OWN NEIGHBORHOOD! THIS SHOULD NOT HAVE HAPPENED. I HOPE SOMEONE WILL CARE ENOUGH TO TRY AND DETERMINE WHAT HAPPENED SO THIS DOESN'T HAPPEN TO SOMEONE ELSE.
NHTSA ID
11290208
Incident
Dec 16, 2019
Mileage
47,600 mi
Driver assistanceElectrical
Filed May 14, 2019
TL* THE CONTACT OWNS A 2014 MERCEDES-BENZ ML350. THE CONTACT STATED THAT WHILE DRIVING VARIOUS SPEEDS, THE LANE ASSIST FEATURE FAILED. THE LANE ASSIST INOPERABLE WARNING LIGHT ILLUMINATED. THE FAILURE HAPPENED INTERMITTENTLY. MERCEDES-BENZ OF NOVI (39500 GRAND RIVER AVE, NOVI, MI 48375 (248) 426-9600) DIAGNOSED AND REPAIRED THE SENOR BUT THE FAILURE REOCCURRED. THE MANUFACTURER WAS MADE AWARE BUT WAS NOT ABLE TO HELP. THE FAILURE MILEAGE WAS 60,000.
NHTSA ID
11207568
Incident
May 2, 2017
Mileage
60,000 mi
AirbagsBody & structureDriver assistance
Filed Feb 8, 2017
Crash reported1 injury reported
I WAS IN A COLLISION IN WHICH I REAR ENDED ANOTHER SUV. THE SPEED CONTROL DID NOT ENABLE AND I HIT THE OTHER VEHICLE HARD ENOUGH TO CAUSE $20,000 WORTH OF DAMAGE TO MY CAR. I BELIEVE THE CAR BRAKING RESPONSE WAS SLOW AND THE AIRBAG SHOULD HAVE DEPLOYED IN A CRASH THAT SIGNIFICANT, BUT IT DID NOT.
NHTSA ID
10950309
Incident
Jul 8, 2016
Mileage
36,000 mi
Driver assistancePowertrain (other)
Filed Mar 6, 2015
THE VEHICLE SENSORS ALL STARTED FLASHING, INCLUDING THE STABILITY CONTROL SYSTEM, PARKING BRAKE, TEMPERATURE GAUGE, ETC. THE SPEEDOMETER FLUCTUATED WILDLY, THE CAR WOULD NOT SHIFT OUT OF DRIVE AND WOULD NOT SHUT OFF. I WAS TRAPPED IN THE VEHICLE, UNABLE TO SHIFT THE CAR OUT OF GEAR INTO PARK OR NEUTRAL AND THE CAR WOULD NOT SHUT OFF. I HAD TO KEEP MY FOOT ON THE BRAKE, BUT I OBVIOUSLY COULD NOT GET OUT OF THE CAR WHILE IT WAS IN GEAR AND RUNNING. AFTER ABOUT 3 MINUTES OF TRYING TO GET THE CAR INTO PARK I WAS ABLE TO TURN OFF THE ENGINE. IT WAS EXTREMELY SCARY. THIS VEHICLE IS UNSAFE. *TR
NHTSA ID
10692529
Incident
Mar 6, 2015
Higher-selling and older vehicles accumulate more reports. Counts are not failure rates and are not directly comparable between vehicles that sold in very different numbers.
Other components reported on this vehicle
Categories with enough reports to have a page of their own