Loss of most of the braking effectiveness, resulting in a collision. This vehicle had a Virginia State inspection performed the previous month and no brake failure dash lights were noted before the collision.
NHTSA ODI 11684251
Home · 2014 Smart Coupe · Complaints
These are the actual owner complaints behind this car’s reliability verdict, filed with the federal government, unedited. They’re unverified reports, not confirmed defects: read them as leads for your pre-purchase inspection, not a diagnosis.
Newest first · 17 complaints
Loss of most of the braking effectiveness, resulting in a collision. This vehicle had a Virginia State inspection performed the previous month and no brake failure dash lights were noted before the collision.
NHTSA ODI 11684251
My 2014 SMART FORTWO has a HV System Maintenance warning that should be included with 2014-2015 HV System recall that Mercedes has. However, My VIN is not coming up on the search. The HV System is causing the car to not charge correctly at charging stations and it is causing the system battery to drain. I don't know when the HV System light came on, but it started causing the vehicle to glitch about March 05, 2025. I have someone look at it in 2023... But it is still having HV System Maintenance problems.
NHTSA ODI 11649006
My SMART ForTwo Coupe 2014 has been having a High Voltage System Maintenance alert on the dashboard. I have sought service help from AAA and PepBoys, but everyone was saying the system battery is fine. When I moved to an apartment that doesn't have electric outlets, my ability to charge was stifled. When my HV battery went under 10%, the system battery shutdown and the HV battery went into reserve mode. I searched the internet and all over the U.S. SMART ForTwo 2014 is having this problem. It's all over the forums on SMART USA website. I did a search and Mercedes has a recall for SMART 2014 - 2015 coupes and convertible with HV System errors. But when I search the NHTSA website, my vehicle did not come up. I've been told in my local city forum that on Mercedes Dealer can fix this problem. So, many SMART 2014 is having this issue. How do I get service help if my VIN isn't popping up for HV System Error? I highly believe my HV System error is related to the following below. Please, look into the HV System Maintenance error that SMART ForTwo ED 2014 is having nationwide. You can find the error reported on YouTube, Facebook, SMART USA, and so many places. The Following is the Recall Quote on Google: "Mercedes-Benz USA (MBUSA) is recalling certain model year 2014-2015 Smart Fortwo Coupes and Convertibles, and 2014 Fortwo Coupe Electric and Fortwo Convertible Electric vehicles due to a potential high-voltage battery failure that could cause the vehicle to stall and increase the risk of a crash or fire. " "Recall Details: NHTSA Campaign Number: 20V107000 Manufacturer: Mercedes-Benz USA, LLC Component: ELECTRICAL SYSTEM "
NHTSA ODI 11648551
The cable attaching the seatbelt is frayed and only being held on by a few strands of cable. My research into the problem on forums and the internet has shown that this is an issue on the drivers side seatbelt for Smart Car.
NHTSA ODI 11540919
The SRS light is on. Technician scanned vehicle and performed guided tests on drivers side seat airbag, found that HE airbag squib is faulty. This is an internal part of the airbag and airbag will need to be replaced.
NHTSA ODI 11501955
The brake booster malfunctioned while I was driving
NHTSA ODI 11497260
Driver’s seatbelt broke at the tensioner as if the cable had been cut with wire cutters. My vehicle has not been involved in a wreck. Under normal driving conditions. Safety issue is if it broke this easily what would’ve happened if I had been involved in an accident? Of course I took the vehicle immediately to a repair shop and the cost to repair is $843.31. Of course the parts have to be ordered. This is a safety issue it’s a law issue you have to have a seatbelt it’s not like I can’t live without the seatbelt. All my research shows that several people have complained about the same incident happening to them I was not driving the vehicle at the time I had just stopped at a store got back in my car and the seatbelt was broken.
NHTSA ODI 11469708
TL* THE CONTACT OWNS A 2014 SMART FORTWO. THE CONTACT WAS DRIVING AT 60 MPH, WHEN THE VEHICLE LOST POWER AND THE CONTACT NOTICED WHITE SMOKE COMING FROM THE REAR OF THE VEHICLE. THE VEHICLE WAS TOWED TO THE CONTACT'S RESIDENCE AND THE TOW TRUCK DRIVER INFORMED THE CONTACT THAT THE RADIATOR HAD BURST. THE CONTACT NOTIFIED PARK PLACE MOTORCARS MERCEDES-BENZ DALLAS (6113 LEMMON AVE, DALLAS, TX 75209) OF THE FAILURE AND WAS INFORMED THAT THERE WAS NO RECALL FOR THE FAILURE EXPERIENCED. THE VEHICLE WAS DIAGNOSED BY AN INDEPENDENT MECHANIC AS AN OVERHEATED ENGINE FAILURE. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS NOT INFORMED OF THE FAILURE. THE FAILURE MILEAGE WAS 65,000.
NHTSA ODI 11405076
TL* THE CONTACT OWNS A 2014 SMART FORTWO. WHILE THE VEHICLE WAS STATIONARY, THE CONTACT NOTICED AN OIL LEAK. THERE WERE NO WARNING INDICATORS ILLUMINATED. THE VEHICLE WAS TAKEN TO EURO MOTORCARS GERMANTOWN (LOCATED AT 19750 GERMANTOWN RD, GERMANTOWN, MD 20874, (301) 601-5500) WHERE IT WAS DIAGNOSED THAT THE DRIVER'S SIDE GEAR BOX NEEDED TO BE REPLACED. THE VEHICLE WAS REPAIRED. THE MANUFACTURER WAS NOT NOTIFIED OF THE FAILURE. THE FAILURE MILEAGE WAS 26,666.
NHTSA ODI 11288478
LOUD CLANKING NOISE WHILE DRIVING. WAS DIAGNOSED AS FAULTY CONDENSER FAN AND LOSE BOLTS/SCREWS WHICH HOLD IT IN PLACE. MERCEDES-BENZ DEALERSHIP WHERE IT WAS PURCHASED SAID WILL COST $1,700-$1,800 TO FIX! INTERNET RESEARCH REVEALED TO ME THIS IS A COMMON DEFECT/PROBLEM. I PAID ALMOST $7,000 FOR MY SMART FOR TWO PURE COUPE. I SHOULD NOT HAVE TO BE PAYING AN ADDITIONAL NEARLY $2,000 BECAUSE BOLTS JIGGLED LOSE.I NO LONGER FEEL SECURE IN MY CAR.NOW IM DRIVING IN HOT FLORIDA IN THE SUMMER WITH NO A/C BECAUSE I CANT AFFORD THIS FIX.
NHTSA ODI 11234271
TWICE, SO FAR THIS YEAR, WHILE DRIVING ON A MAJOR ROADWAY, THE VEHICLE LOST POWER. I HAD TO PULL OVER TO THE SHOULDER, PUT IT IN PARK, SHUT IT OFF, AND RESTART THE SYSTEM. I CONSIDER THAT TO BE AN EXCEPTIONALLY DANGEROUS SITUATION. LATER, WHEN THE VEHICLE WAS SERVICED, I WAS TOLD THAT SMART USA WAS AWARE OF THIS PROBLEM, AND THAT A SOFTWARE UPGRADE WAS NEEDED. THERE WAS NO RECALL!
NHTSA ODI 10889229
TL* THE CONTACT OWNS A 2014 SMART FORTWO. WHILE DRIVING 20 MPH, THE ELECTRICAL SYSTEM FAILED. THE CONTACT COASTED THE VEHICLE TO THE SIDE OF THE ROAD AND WAS ABLE TO RESTART THE VEHICLE. THE VEHICLE WAS TOWED TO A DEALER WHERE IT WAS DIAGNOSED, BUT THE TECHNICIAN COULD NOT FIND A FAILURE. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE. THE APPROXIMATE FAILURE MILEAGE WAS 6,157.
NHTSA ODI 10883432
THE SHOULDER PORTION OF MY SEAT BELT RIDES ON MY NECK. WHAT IS THE REMEDY FOR THIS SAFETY PROBLEM? REF COMPLAINT #10722112 28MAY15.
NHTSA ODI 10723785
MY SEAT BELT SHOULDER STRAP RIDES ON MY NECK.
NHTSA ODI 10722112
TL*THE CONTACT OWNS A 2014 SMART FORTWO. THE CONTACT STATED THAT WHILE DRIVING AT VARIOUS SPEEDS, THE KEY WOULD MOVE FROM THE RUN POSITION CAUSING THE VEHICLE TO STALL. THE CONTACT ALSO STATED THAT THE BRAKE AND THE ACCELERATOR PEDALS WERE EXTREMELY CLOSE TO ONE ANOTHER. THE CONTACT STATED MENTIONED THAT WHEN SWITCH FROM THE BRAKE PEDAL TO THE ACCELERATOR PEDAL, HIS FOOT WOULD GET CAUGHT UNDER THE BRAKE PEDAL. THE VEHICLE WAS NOT DIAGNOSED OR REPAIRED. THE MANUFACTURER WAS MADE AWARE OF THE FAILURES. THE FAILURE MILEAGE WAS 1,000.
NHTSA ODI 10680032
LOCAL STREET. RAN OVER A ~4 INCH BOLT IN ROADWAY. PUNCTURED TIRE, BUT THEN THE BOLT KNOCKED 4 HOLES IN THE WHEEL (RIM). I DO NOT CONSIDER A BOLT IN THE ROADWAY TO BE AN UNUSUAL HAZARD. I DO NOT BELIEVE THAT THE WHEEL - TIRE COMBINATION IS SUITABLE FOR USE ON PUBLIC ROADS. I BELIEVE THAT THE WHEEL - TIRE COMBINATION PRESENTS AN IMMEDIATE SAFETY HAZARD FOR USERS OF THIS VEHICLE. *TR
NHTSA ODI 10628051
WHILE DRIVING AT A STEADY SPEED OF 40MPH, THE VEHICLE SUDDENLY LOST POWER. YOU COULD HEAR THAT THE CYLINDERS AND PISTONS STOPPED WORKING. THE VEHICLE HAD 2 GALLONS OF GAS. WE PUT IN 2 MORE GALLONS AT THE ADJACENT GAS STATION AND LIMPED HOME AT 30MPH. THE DEALERSHIP PICKED UP THE VEHICLE AT OUR HOME AND DROVE IT FROM MILWAUKEE TO CHICAGO WITHOUT INCIDENT. THE DEALERSHIP SAID THEY REPLACED THE PURGE VALVE AND ALL 3 IGNITION COILS;COME AND PICK IT UP. ON OUR DRIVE HOME, GOING A STEADY UNINTERRUPTED 40 MPH (NO STOP SIGNS, OR STOP LIGHTS AT ALL) WE DROVE 28 MILES AND THE SAME PROBLEM HAPPENED AGAIN. THE VEHICLE WAS TOWED TO THE DEALERSHIP. THE DEALERSHIP REQUESTED ASSISTANCE FROM MERCEDES. MERCEDES DECLINED, STATING THEY WOULD ACCEPT THE PROBLEM WHEN THE DEALERSHIP IDENTIFIED THE SOURCE OF THE PROBLEM. AFTER 10 DAYS THE DEALERSHIP NOTIFIED US THAT THEY COULD NOT IDENTIFY THE SOURCE OF THE PROBLEM. WE WAITED THROUGH THE 30 BUSINESS DAY LEMON LAW PERIOD AND FILED FOR RELIEF. *TR
NHTSA ODI 10588504
Working with the data? Download all 17 complaints as CSV · fetched from NHTSA July 28, 2026