Home · 2016 Hyundai Sonata Plug-in · Complaints

What 157 owners told NHTSA about the 2016 Hyundai Sonata Plug-in

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.

All (157)Crash / fire / injury (7)Engine (90)Electrical system (46)Transmission & drivetrain (16)Fuel system (9)Brakes (7)Lights (7)Hybrid Propulsion System (5)Speed control (4)Visibility & wipers (4)Driver assistance (3)

90 of 157 complaints match · Engine · clear filters · page 3 of 4

Mar 1, 2021Engine

TL* THE CONTACT OWNS A 2016 HYUNDAI SONATA HYBRID. THE CONTACT RECEIVED NOTIFICATION OF NHTSA CAMPAIGN NUMBER: 20V746000 (ENGINE) HOWEVER, THE PART TO DO THE RECALL REPAIR WAS NOT YET AVAILABLE. THE CONTACT STATED THAT THE MANUFACTURER HAD EXCEEDED A REASONABLE AMOUNT OF TIME FOR THE RECALL REPAIR. NEITHER THE DEALER NOR THE MANUFACTURER WAS NOT MADE AWARE OF THE ISSUE. THE CONTACT HAD NOT EXPERIENCED A FAILURE. PARTS DISTRIBUTION DISCONNECT.

NHTSA ODI 11398397

Feb 24, 2021Engine

KNOCKING IN ENGINE AREA THEN SAID TO STOP IMMEDIATELY THEN BATTERY DIED

NHTSA ODI 11397780

Feb 18, 2021Engine

TL* THE CONTACT OWNS A 2016 HYUNDAI SONATA HYBRID. THE CONTACT RECEIVED NOTIFICATION OF NHTSA CAMPAIGN NUMBER: 20V746000 (ENGINE) HOWEVER, THE PART TO DO THE RECALL REPAIR WAS NOT YET AVAILABLE. THE CONTACT STATED THAT THE MANUFACTURER HAD EXCEEDED A REASONABLE AMOUNT OF TIME FOR THE RECALL REPAIR. NEITHER THE DEALER NOR THE MANUFACTURER WERE CONTACTED. THE CONTACT HAD NOT EXPERIENCED A FAILURE. PARTS DISTRIBUTION DISCONNECT. *BF CONSUMER STATED DEALER WAS CONTACTED.*JB

NHTSA ODI 11396752

Feb 3, 2021Engine

TL* THE CONTACT OWNS A 2016 HYUNDAI SONATA. THE CONTACT STATED THAT WHILE DRIVING 25 MPH, THE WARNING MESSAGE "SHUT OFF" HAD DISPLAYED BEFORE THE VEHICLE STALLED. THE VEHICLE WAS LATER TAKEN TO THE LOCAL DEALER FAIRFAX HYUNDAI LOCATED AT 10925 FAIRFAX BLVD, FAIRFAX, VA 22030 WHO DIAGNOSED THAT THE WATER PUMP AND ENGINE GASKET WERE FAULTY. THE VEHICLE WAS REPAIRED AND THE FAILURE WAS REMEDIED. ADDITIONALLY, THE INSTRUMENT PANEL DISPLAYED HAD SUDDENLY SHUT OFF WHILE DRIVING. THE CAUSE OF THE FAILURE WAS NOT DETERMINED. THE ENGINE WOULD ALSO REV VERY HIGH WHILE OPERATING THE VEHICLE. THE MAIN RELAY WAS REPLACED BY THE DEALER. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE. THE FAILURE MILEAGE WAS 22,700.

NHTSA ODI 11394514

Feb 3, 2021Engine

HYUNDAI CAMPAIGN198. WE RECEIVED THE NOTICE BUT IT STILL SHOWS AS "NO REMEDY". IT'S BEEN OVER 2 MONTHS AND DEALER JUST TELLS US THE CAR "MAY" BE UNSAFE TO DRIVE. SO I HAVE A TRIP IN TWO WEEKS THAT IS DRIVING 17 HOURS EACH WAY, IN AN UNSAFE VEHICLE WITH MY FAMILY AT FREEWAY SPEEDS. YOU CAN'T CHECK A CONNECTING ROD BEARING SO THE REMEDY IS ENGINE REPLACEMENT. WHAT REMEDY ARE YOU WAITING FOR?

NHTSA ODI 11394531

Jan 27, 2021Engine

TL* THE CONTACT OWNS A 2016 HYUNDAI SONATA HYBRID. THE CONTACT STATED THAT WHILE DRIVING 65 MPH, THE VEHICLE STARTED MAKING AN ABNORMAL TICKING NOISE SIMULTANEOUSLY WHILE STALLING, WITHOUT WARNING. THE CONTACT WAS FORCED TO PLACE THE VEHICLE INTO HYBRID MODE TO RESUME NORMAL DRIVING. THE CONTACT TOOK THE VEHICLE TO CARTER COUNTY HYUNDAI (616 HOLIDAY DR, ARDMORE, OK 73401) AND WAS INFORMED THAT THE ROD BEARING WAS DEFECTIVE. THE CONTACT WAS ALSO INFORMED THAT THE VEHICLE WAS INCLUDED IN NHTSA CAMPAIGN NUMBER: 20V746000 (ENGINE) WHICH WAS LINKED TO THE FAILURE. THE CONTACT WAS INFORMED THAT THE PARTS FOR THE RECALL REPAIR WAS NOT YET AVAILABLE. THE MANUFACTURER WAS NOT MADE AWARE OF THE FAILURE. THE VEHICLE WAS NOT REPAIRED. THE FAILURE MILEAGE WAS APPROXIMATELY 119,000. VIN TOOL CONFIRMS PARTS NOT AVAILABLE.

NHTSA ODI 11390271

Jan 25, 2021Engine

NHTSA AND THE HYUNDAI WEBSITE SAYS THERE IS AN ACTIVE RECALL, HOWEVER WHEN I GO SCHEDULE WITH HYUNDAI ON THEIR WEBSITE, IT SAYS THERE IS NO ACTIVE RECALL. CALLING DEALERSHIP DIDN'T HELP EITHER. I HAVE ENGINE ISSUES THAT RENDER IT UNOPERABLE.

NHTSA ODI 11389858

Dec 21, 2020Engine

TL* THE CONTACT OWNS A 2016 HYUNDAI SONATA. THE CONTACT STATED THAT WHILE DRIVING AT HIGH SPEEDS, THE VEHICLE LOSS MOTIVE POWER AND STALLED WITH THE CHECK ENGINE WARNING LIGHT ILLUMINATED. THE VEHICLE WAS PUSHED OFF THE ROADWAY WITH ASSISTANCE FROM A BYSTANDER. THE VEHICLE WAS TOWED TO TUSTIN HYUNDAI (16 AUTO CENTER DRIVE, TUSTIN, CA 92782, (714) 647-2000) TO BE DIAGNOSED. THE TECHNICIAN DETERMINED THAT THE COMMUNICATION WIRE BETWEEN THE BATTERY AND COMPUTER FAILED AND NEEDED TO BE REPLACED. THE VEHICLE WAS REPAIRED HOWEVER, THE FAILURE RECURRED 2 YEARS LATER. THE CONTACT WAS INFORMED THAT THE COMPUTER TO THE ENGINE NEEDED TO BE REBOOTED. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE AND PROVIDED THE CONTACT WITH A CASE NUMBER. THE FAILURE MILEAGE WAS APPROXIMATELY 18,000.

NHTSA ODI 11384407

Dec 7, 2020Transmission & drivetrainEngineFuel system

2016 HYUNDAI SONATA HYBRID IGNITION ISSUE THE ENGINE IS RATTLING WHILE IDLING AND UNDER ACCELERATION AND THE CHECK ENGINE LIGHT IS COMING ON. BELIEVE IT IS AN ISSUE WITH EITHER SPARK PLUGS OR IGNITION COIL. SERVICE DEPT SAID BOTH COMPONENTS LOOKED FREE OF DAMAGE UPON INSPECTION.

NHTSA ODI 11378282

Nov 12, 2020Transmission & drivetrainElectrical systemEngine

WHILE THE VEHICLE IS MOVING THE CHECK HYBRID SYSTEM WARNING LIGHT BEEPS AND COMES ON. THE MESSAGE REQUEST TO TURN ENGINE OFF. THE GAS ENGINE SOMETIMES WILL CUT THE POWER TO THE VEHICLE CAUSING THE VEHICLE TO LOSS POWER ON THE ROAD.

NHTSA ODI 11374244

Jul 29, 2020Engine

AT AROUND 104K MILES THE ENGINE BEGINS KNOCKING AND HEAVILY VIBRATING. TIME TO TIME THE CARE WILL NOT START AND SAY "CHECK HYBRID BATTERY" AND I HAVE TO LEAVE IT OFF FOR ABOUT 10 MINS BEFORE IT STARTS WORKING AGAIN.

NHTSA ODI 11342136

Jul 18, 2020Engine

DESPITE IGNITION BEING TURNED OFF, GASOLINE ENGINE CONTINUED TO RUN. VEHICLE WAS STATIONARY IN A GARAGE AFTER BEING DRIVEN 1/2 MILE ON A VERY HOT DAY.

NHTSA ODI 11340085

Jul 7, 2020Engine

DRIVING IN A SCHOOL AREA UNDER 25 MILES HEARD A RATTLE NOISE COMING FOR CAR POOLED OVER AND CALLED FOR A TOW TRUCK AND SHUT OFF MY CAR NEXT THING I KNOW I BLEW AND ENGINE I KEEP MAINTENANCE AND ALL UP TO DATE RECALL ON MY VEHICLE. I DON'T UNDERSTAND WHY THIS HAPPEN.

NHTSA ODI 11338016

Jun 3, 2020Engine

I WAS DRIVING MY VEHICLE ON THE HIGHWAY WHEN IT STARTED KNOCKING AND WOULD NOT ACCELERATE ABOVE 55MPH. I DROVE STRAIGHT TO THE DEALERSHIP, WHERE I FOUND OUT THE CAR HAD RAN OUT OF OIL. I DRIVE THE VEHICLE FOR WORK AND IT HAS REGULAR OIL CHANGES AND MAINTENANCE. HOWEVER, WHEN THE VEHICLE RAN OUT OF OIL, IT DID NOT NOTIFY THAT THERE WERE ANY ISSUES WITH THE ENGINE OR OIL LEVEL. THE CARS 'CHECK ENGINE' LIGHT DID NOT INDICATE THE ENGINE WAS HAVING ISSUES, AFTER THE KNOCKING STARTED. NOR DID IT INDICATE IT WAS LOW OR OUT OF OIL. THE CAR JUST WORKED ONE DAY AND DID NOT THE NEXT. THE DEALERSHIP AND MANUFACTURER ASSUMED SOME LIABILITY, BUT NOT ALL. THE VEHICLE SHOULD HAVE NOTIFIED THE DRIVER, THAT IT WAS LOW ON OIL. IT'S EXTREMELY UNSAFE FOR A VEHICLE TO RUN OUT OF OIL DURING OPERATION. I ALSO SUBSCRIBE TO A REMOTE VEHICLE MONITORING SYSTEM AND I PAY MONTHLY TO THE MANUFACTURER. THAT SYSTEM ALSO DID NOT KNOW THAT THE VEHICLE WAS LOW OR OUT OF OIL. IT DID NOT INDICATE ANY ISSUES UNTIL THE SHOP REPAIRS THE ENGINE. *TR

NHTSA ODI 11327158

Feb 19, 2020Electrical systemEngine

AFTER FILLING TANK FOR LONG ROAD TRIPS THE CAR DOES NOT START AND THE CHECK HEV HYBRID SYSTEM LIGHT COMES ON.

NHTSA ODI 11310129

Feb 9, 2020Electrical systemEngine

I STOPPED FOR GAS AND WHEN I ATTEMPTED TO START CAR AN ALERT CAME ACROSS MY SCREEN SAYING CAR HAS A HEV ISSUE AND CHECK ENGINE LIGHT. I WOULD HAVE TO WAIT FOR 15 TO 20 MINUTES FOR MY CAR TO START AGAIN. I WAS ASSUMING IT WAS BAD GAS BUT MECHANIC CONFIRMED THAT IT WASN'T A BAD GAS ISSUE. I WENT TO THE DEALERSHIP AND THEY SAID IT'S A POTENTIAL ELECTRIC ISSUE THAT MY WARRANTY DOES NOT COVER. I HAD YET EVEN EXCEED MILEAGE ABOVE 70000 MILES. I BELIEVE THIS IS AN ISSUE THAT IS AN INCONVENIENCE TO ME AND OTHER DRIVERS BECAUSE IT IS STARTING TO HAPPEN MORE FREQUENTLY. THIS COULD BE A FATHER FOR ANYONE IN A URGENT SITUATION AND NEED TO BE ABLE TO ACTIVATE THE CAR TO LEAVE IMMEDIATELY. THANK YOU FOR YOUR CONSIDERATION.

NHTSA ODI 11308023

Dec 30, 2019BrakesEngine

DRIVING TO AIRPORT IN CAR. JUST PULLED IN TO FREEWAY AFTER STOPPING AT STORE 45 MINS INTO DRIVE. MY 3016 SONATA HYBRID LIMITED STARTED MAKING A KNOCKING SOUND. MY BOYFRIEND WHO IS A MECHANIC RECOGNIZED IT IMMEDIATLY. THEN SUDDENLY ENGINE MADE LOUD NOISE AND PARTS AND OIL FLEW ALL OVER BEHIND US FROM UNDERNEATH CAR. HE MANAGED TO GET IT OFF ROAD WITHOUT US GETTING HIT.WAITED 4 HOURS FOR TOW THAT WAS COVERED BY WARRANTIES I PURCHASED. HYUNDAI TRIED TO STATE THAT ONLY 2 PEOPLE COULD RIDE IN TOW TRUCK. SO ONE PERSON (THERE WERE 2 ADULTS AND A CHILD) WOULD HAVE TO WAIT IN MIDDLE OF NOWHERE WHILE OTHER 2 WENT THE HOUR BACK HOME WITH TOW TRUCK AND THEN CAME THE HOUR BACK. THERE WASN'T A GAS STATION OR ANYTHING AROUND. THE CAR IS IN SHOP WAITING TO SEE WHAT WARRANTY SAYS ABOUT IT NEEDING A NEW ENGINE. ALL MAINTENANCE WAS DONE AND WAS IN HYUNDAI SHOP 5 WEEKS PRIOR WITH ABS UNIT NEEDING REPLACED. THERE WAS NO WARNING LIGHT OR ENGINE LIGHT THAT ALERTED US TO A POSSIBLE ISSUE.

NHTSA ODI 11292204

Jul 10, 2019EngineFuel system

INTERMITTENT LOSS OF POWER "SPUTTER" AT ANY SPEED WITH SOLID MIL. RELEASING THE THROTTLE CLEARS THE CONDITION AND THE MIL GOES OUT. VEHICLE DRIVES NORMALLY WITH NO WARNING INDICATORS UNTIL NEXT OCCURRENCE. CAUSE UNKNOWN AT THIS TIME, BEGAN HAPPENING A FEW WEEKS AFTER ENGINE LONG BLOCK REPLACEMENT UNDER WARRANTY CAMPAIGN.

NHTSA ODI 11230694

Jun 15, 2019Electrical systemEngine

HEV ENGINIE ERORR

NHTSA ODI 11220241

May 23, 2019Electrical systemEngineFire

ON 5/11 MY WIFE WAS DRIVING WHEN SHE HEARD A CLICKING SOUND. SHE WAS NOT FAR FROM THE DEALERSHIP AND DECIDED TO DRIVE THE CAR IN TO GET LOOKED AT. AS SHE GOT CLOSE TO THE DEALERSHIP THE VEHICLE STARTED TO SMOKE. SHE PULLED OVER TO A SAFE LOCATION WHERE SHE COULD GET OUT AND AS SHE WAS PULLING OVER THE VEHICLE STARTED TO FLAME. SHE IMMEDIATELY GRABBED THE DOG AND JUMPED OUT OF THE CAR AND CALLED 911. WITHINJUST A COUPLE MINUTES OF EXITING THE VEHICLE IT WAS FULLY ENGULFED IN FLAMES AND EXPLODED.

NHTSA ODI 11209538

May 7, 2019Engine

ENGINE KNOCKING WHICH LEAD TO ENGINE FAILURE REQUIRING A COMPLETE REPLACEMENT OF THE ENGINE. THERE WAS NO WARNING FROM THE ENGINE WARNING SYSTEM. HYUNDAI CORPORATE SAID SINCE I AM THE SECOND OWNER THEY WILL NOT COVER THE COST OF THE REPAIR WHICH WAS OVER $3200. THIS ISSUE SEEMS TO BE RELATED TO THE ENGINE BEARING PROBLEMS HYUNDAI HAD IN THE PAST. MY VEHICLE ONLY HAD 85,000 MILES ON IT WHEN THE PROBLEMS BEGAN. THE COMPANY ALSO REFUSED TO PROVIDE ME WITH THE MECHANICS NOTES REGARDING THE REPAIRS.

NHTSA ODI 11206144

May 6, 2019Engine

CLATTERING OF INTERNAL COMBUSTION ENGINE OBSERVED BY CUSTOMER UNDER NORMAL OPERATING CONDITIONS. CAME ON SUDDENLY. ROD NOISE. INTERNAL COMBUSTION ENGINE FAILURE 58,884 MILES CAUSE DUE TO METAL SHAVINGS LEFT OVER FROM MANUFACTURING PROCESS AS DISCOVERED THROUGH MANUFACTURER PRESCRIBED WARRANTY REPAIR PRIOR AUTHORIZATION PROCEDURES. DEALER PERFORMED NO COST LONG BLOCK REPLACEMENT. OUT OF SERVICE APPROXIMATELY 25 DAYS. MANUFACTURER DID NOT WARRANTY REPLACEMENT ENGINE BEYOND ORIGINAL WARRANTY MILEAGE.

NHTSA ODI 11205896

Feb 23, 2019Engine

I HAD DROVE MY CAR TO WORK ON TUESDAY THE 19TH. WHEN I CAME BACK OUT TO MY CAR 6 HOURS LATER AND STARTED MY CAR IT WAS NOT MOVING AT ALL THERE WAS A BIG CLANKING NOISE. I HAD PARKED MY CAR AND HAVE NOT DRIVEN SINCE I HEARD THE NOISE. I HAD IT TOWED TO THE SHOP. I FEEL AS THOUGH THIS WAS SOMETHING THAT HAPPENED OUT OF THE BLUE. I HAVE KEPT UP ON MY MAINTENANCE AND EVERYTHING AND FEEL AS THOUGH THIS MUST BE A FLAW WITH MY CAR.

NHTSA ODI 11182141

Feb 15, 2019Engine

WENT TO GO GET AN OIL CHANGED ON FEB 9TH. MONDAY, FEB 11TH DROVE TO WORK AND BACK HOME, WHEN I REACHED THE EXIT OFF THE BELTWAY, THE CAR STARTED PUT PUTING, SMOKE STARTED COMING OUT OF THE BACK, ENGINE AND OIL LIGHT CAME ON. I IMMEDIATELY DROVE IT 6 MILES HOME TO PARK IT. HAD IT TOWED AN HOUR LATER. THE SHOP SAID THE ROD BUSTED AND WENT THROUGH MY ENGINE AND NO OIL WAS IN THE CAR. THIS HAS BEEN AN ONGOING ISSUES WITH THIS TYPE OF CAR. THIS EXPERIENCE HAS REALLY DRAMATIZED ME. NOT SURE IF MY INSURANCE WILL PAY FOR IT AND I WILL HAVE TO COME OUT OF POCKET TO REPLACE AN ENGINE THAT COULD HAVE POSSIBLY BEEN A RECALL. BASED OF MY VIN: ITS NOT, BUT JANUARY 2019 & APRIL 2016, THERE WERE RECALLS WITH THIS SAME ISSUE. ITS NOT RIGHT.

NHTSA ODI 11180233

Aug 21, 2018Transmission & drivetrainEngine

HYBRID SYSTEM WARNING LIGHT CAME ON SEVERAL TIMES. NOW IT IS NOT OPERABLE. CAR WAS CHECKED BY LOCAL HYUNDAI DEALER SERVICE 3 DAYS AGO. THEY DID NOT HAVE PARTS AT THE TIME OF SERVICE, THEY DID NOT PERFORM THE RECALL SERVICE. I WAS ABLE TO DRIVE IT BACK HOME SAFELY, BUT WHEN I TRIED TO START THE CAR AGAIN 3 DAYS LATER IN THE EVENING, IT GAVE WARNINGS. CAR IS NOT OPERABLE.

NHTSA ODI 11121258

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Working with the data? Download all 157 complaints as CSV · fetched from NHTSA July 26, 2026

How to use these: a complaint is one owner’s report, filed voluntarily and published unverified. Patterns matter more than any single story. If several owners describe the same failure at similar mileage, put that system at the top of your pre-purchase inspection list. Back to the full 2016 Hyundai Sonata Plug-in verdict →