What 758 owners told NHTSA about the 2017 Hyundai Sonata

The contact owns a 2017 Hyundai Sonata. The contact stated that while driving at an undisclosed speed, the contact engaged the hybrid function on the vehicle and the vehicle unexpectedly stopped. The contact stated that the accelerator pedal was depressed; however, the vehicle took several minutes to respond. There were several unknown warning lights illuminated. The contact stated that when the vehicle accelerated, the vehicle jerked abnormally. The vehicle was taken to the dealer, where it was diagnosed and determined that the brake sensors had failed and needed to be replaced. The vehicle was repaired; however, the failure recurred. The manufacturer was made aware of the failure. The approximate failure mileage was 130,000.

NHTSA ODI 11695460

Fault code in the Automatic Braking System C24020 C17410 White body paint bubbling and peeling off the car for no reason. Passenger door roof frame and trunk. Hood previously repaired

NHTSA ODI 11636353

The contact owns a 2017 Hyundai Sonata. The contact stated while driving 30 MPH, the service brakes independently activated, and the vehicle stopped with a hard impact. The contact stated that the failure caused items within the vehicle to be thrown around inside. The vehicle was taken to the dealer; however, the failure could not be duplicated. The vehicle was not diagnosed or repaired by an independent mechanic or dealer. The manufacturer was made aware of the failure and a case was filed. The failure mileage was approximately 45,000.

NHTSA ODI 11579675

I was traveling on [XXX] Baton Rouge La. and Gonzales La. at 70 mph when I lost power to my vehicle , an alarm sounded saying it was the Hybrid control system failure, putting my safety at risk as I had to maneuver off the interstate and onto the shoulder during heavy traffic . I called State Farm insurance to get my vehicle towed to Ralph Sellers Hyundai in Gonzales La. where it is being repaired. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

NHTSA ODI 11564410

The hybrid system failure. Chrck engine light is flashing. Abs system failure. Battery failure. Car can't go over 45mph, lost a job because of the issues. I'm afraid the car is going to blow up or catch fire. I'm afraid to drive it. The acceleration is barely there. It's like the car doesn't even wanna go. It sucks through gas like no other.

NHTSA ODI 11547652

This is my second report and no one helped me. I have a safety issue and I am driving an unsafe car Hyundia refuses to help me.

NHTSA ODI 11534746

I purchased the vehicle in December and the same weak it began leaking oil the window won’t roll down and the car shuts down by itself. It caused me to have an accident and the dealership has repaired it 14 times with the same issue. They are forcing me to drive an unsafe vehicle I need to report this vehicle as unsafe

NHTSA ODI 11528644

I took my car to a shop due to my car having a loud knocking noise coming from the engine bay and lack of acceleration as well as the oil light flickering on and off and once the mechanic inspected my vehicle he said metal particles were being deposited into my oil due to internal engine parts. After picking my car up all the lights on the dash cut on and the car completely had no steering, no brakes, no power but the radio still worked. I barely could turn the steering wheel nor could stop the vehicle due to this and thankfully could coast into an upgrade leveled hill and stop the car. Car would barely recrank or hold power nor would go above 40 mph. Only drove 5 miles to get the car back home safely. Drove back around 3:00 a.m. so there wouldn't be much traffic out in case of something like this happening. Could've been catastrophic!

NHTSA ODI 11499677

The Abs brakes and traction control go in and out and affects the brakes while driving, I know there been reports of fire but for some reason my car is not in the recall, same thing with the air bags lights come on showing faulty air bags and on scanner tools but not recalled even though Hyundai knows about these issues. Now for engine I went to have my engine looked at 2 times for oil consumption and all they did was a combustion chamber cleaning twice which both failed in less the 8100 miles so when I took it back for another oil consumption test for the 3rd time today, the engine light came on, it started knocking, lost power and riding rough. Well, they did an engine scanner test and suspect faulty rings allowing oil into the combustion chamber and fouling my new sparks plugs that was installed less then 10000 miles ago, now they tell me I need a new engine and refuse to replace it for free even though they said they fixed the problem before with the engine cleaning now the same part is the problem and now, I am without a car to drive! They tell me I can lose power while driving which could lead to a car accident.

NHTSA ODI 11482921

On or about August 13 2022, I notice the oil engine light come for a second, then it went off. After parking vehicle at my home and letting the engine cool off a bit and oil to settle, I checked dipstick only to find out that is was showing DRY no oils whatsoever, I then bought 1 qt of oil and added it to engine still dip stick showed dry and not a drop of oil on it. With still 3,000 miles to go before my next oil change, I decided to take it to PepBoys for a new oil change. After one week dip stick was showing oil on the low side and this time the metal on the stick showed whiteish, like it had been over heated. after this decided to take it to dealership GOSH HYUNDAI In Hemet 92545. I was told it would take 2 days to do some checks and get it ready for an oil consumption test. That is drive vehicle 1000 miles then take it in for another inspection (hopefully 1 day) then getting it back, drive another 1000 miles, then take back for another inspection. Being this my only Vehicle at this time, I am not sure why it takes so long to figure this out. OH did I mention Hyundai headquarters (I'm guessing) has to approve the oil consumption test, otherwise I am out a vehicle and have to pay for repairs. Not too mention the brake fluid reservoir is doing the exact same thing, fluid is being completely replaced every month to month and a half, by replace I mean adding a full reservoir worth of fluid because it seems to be evaporating. I am on the the third time adding fluid to this vehicle after GOSH Hyundai worked on my brakes (10000 miles a go). But this one I will have to pay 165 dollars for them to check it out. Nothing was said about me paying for engine oil issue check, plus they had me sign a affidavit to make sure I was the only owner on vehicle witch I am...So now the waiting game begins and to wait until someone makes a decision about fixing this issues?!!

NHTSA ODI 11481310

Air bag and antilock brake lights came on. First dealer replaced the air bag control module. Secondary issue then identified a defective air bag. Both have not been replaced. I asked for the old parts and was told I could not have them. They were sent back to be rebuilt.

NHTSA ODI 11443724

BACK BRAKE LIGHT BULB HAS BEEN CHANGED 10 TIMES THEY GO OUT REPEATEDLY FROM SIDE TO SIDE

NHTSA ODI 11407132

TL* THE CONTACT OWNS A 2017 HYUNDAI SONATA. THE CONTACT STATED THAT IT BECAME HARDER TO SLOW OR STOP THE VEHICLE. THE CONTACT STATED THAT ON SEVERAL OCCASIONS WHILE DRIVING AT UNDISCLOSED SPEEDS, THE BRAKE PEDAL WAS DEPRESSED AND WENT TO THE FLOORBOARD, EXTENDING THE BRAKING DISTANCE. THE BRAKE PEDAL WAS PUMPED SEVERAL TIMES TO SLOW AND STOP THE VEHICLE. THE DEALER ALL STAR HYUNDAI (10313 AIRLINE HWY, BATON ROUGE, LA 70816, (225) 274-0071) WAS CONTACTED AND INFORMED OF THE FAILURE. THE CONTACT RESEARCHED THE ISSUE AND BECAME AWARE OF A POSSIBLE DEFECTIVE BRAKE BOOSTER DIAPHRAGM WHICH MAY BE THE CAUSE FOR THE FAILURE. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS NOT CONTACTED. THE FAILURE MILEAGE WAS 59,500.

NHTSA ODI 11363139

TL* THE CONTACT OWNS A 2017 HYUNDAI SONATA. THE CONTACT STATED THAT WHILE AT A STOP LIGHT, THE BRAKE PEDAL WAS DEPRESSED, THE RPM REVVED UP AND THE VEHICLE LUNGED FORWARD. THE CAUSE OF THE FAILURE WAS NOT DETERMINED. THE LOCAL DEALER FUCCILLO HYUNDAI LOCATED AT (1910 ALVIN RD, GRAND ISLAND NY) WAS NOTIFIED OF THE FAILURE. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS NOT NOTIFIED OF THE FAILURE. THE FAILURE MILEAGE WAS 17,000. THE VIN WAS NOT AVAILABLE.

NHTSA ODI 11309818

ISSUE #1 BRAKES MAKING A WIERD SQUALLING SOUND WHEN WE APPLY THE BRAKES AT VARIOUS TIMES DRIVING . WE BROUGHT OUR 2017 SONATA HYBRID NUMEROUS TIMES WITHOUT ANY FIX ! SERIOUS SAFETY ISSUE ! ISSUE #2 WEI BROUGHT OUR 2017 HYUNDAI SONATA WITH ONLY 14,000 MILES TO SERVICE DEPT. AT HYUNDAI TO INSPECT TIRES & BRAKES & OIL CHANGE BEFORE LEAVING ON OUR LONG TRIP TO MIAMI . EVERYTHING CHECKED OUT OK ! WE DROVE 2/3 OF WAY ON I-75 HIGHWAY & ONLY STOPPED ONCE FOR GAS . WE NOTICED A THUMPING SOUND & OUR CAR STARTED "PULLING TO THE RIGHT". WE THOUGHT IT WAS A FLAT TIRE & STOPPED AT THE NEXT REST AREA TO INSPECT TIRES FOR PROPER PSI INFLATION...ALL TIRES CHECKED OUT OK?? THERE WAS NO "WARNING LIGHTS ON " SO WE GOT BACK ONTO I-75 & WE REALLY GOT NERVOUS AS THE SHAKING REALLY GOT WORSE AS WE DROVE ON. WE SLOWED DOWN TO 40 MPH. WITH FLASHERS ON. WE CALLED ROADSIDE ASSISTANCE FOR DIRECTIONS TO NEAREST HYUNDAI DEALERSHIP. WE SLOWLY MADE IT TO RICK CASE HYUNDAI WHO INSPECTED OUR CAR & WERE "SHOCKINGLY TOLD THAT THE (2) RIGHT SIDE TIRES EXPERIENCED "BELT SEPERATIONS " & THEY HAD TO BE REPLACED IMMEDIATELY WITH A NEW WHEEL ALIGNMENT (OVER $ 500). TECH SAID ! WOW THAT LOOKS LIKE TWO MANUFACTURER DEFECTIVE TIRES ! WE CARRIED 2 TIRES BACK TTO OUR LOCAL HYUNDAI SERVICE DEPT IN NPR & WILL TRY TO GET REIMBURSED BY HANKOOK ! THIS IS A "SERIOUS SAFETY ISSUE " WITH THESE TIRES AS WE HAVE READ ALL THE COMPLAINTS ABOUT THESE MODEL TIRES. WE WOULD LIKE TO REPLACE THE OTHER (2) TIRES THAT ARE STILL ON VEHICLE WITH THESE MAJOR SAFETY ISSUES ! MY WIFE & I DONT FEEL SAFE WITH THE TIRES & BRAKES CONCERNS !

NHTSA ODI 11299693

TL* THE CONTACT OWNS A 2017 HYUNDAI SONATA. THE CONTACT STATED THAT WHEN IT SNOWED, THE ANTI-LOCK BRAKE SYSTEM ENGAGED, THE VEHICLE PULSATED, AND TOOK 30 TO 50 SECONDS TO STOP. THE CONTACT HAD NO CONTROL OVER THE VEHICLE WHEN THE FAILURE OCCURRED. THE CONTACT STATED THAT THE FAILURE OCCURRED WHILE DRIVING MORE THAN 10 MPH IN THE SNOW. CLASSIC HYUNDAI (8460 TYLER BLVD, MENTOR, OH 44060, (440) 266-6777) STATED THAT WAS HOW THE VEHICLES WERE CURRENTLY DESIGNED AND REFERRED THE CONTACT TO THE MANUFACTURER. THE MANUFACTURER STATED THAT IF THE DEALER INDICATED THAT THE VEHICLE WAS DESIGNED THAT WAY, THEN THEY COULD NOT ASSIST. THE FAILURE MILEAGE WAS 6,000.

NHTSA ODI 11290387

DRIVING DOWN THE GRAPEVINE N MY CAR STARTED SHAKING WHEN I PRESSED ON THE BRAKES

NHTSA ODI 11280186

MY CAR IS A 2017 SONATA SE 2.4L JUST SHY OF 21K MILES. I USE THE PARKING BRAKE ALL THE TIME AND YESTERDAY WHEN I GOT HOME AND DEPRESSED THE PARKING BRAKE PEDAL IT WENT ALL THE WAY TO THE FLOOR - NO MORE WORKING PARKING BRAKE! ON THE FLOOR I FOUND A SMALL LOCKNUT AND A WASHER THAT FELL OFF THE THREADED END OF THE CABLE AT THE PARKING BRAKE PEDAL. I REPAIRED IT MYSELF BY ADDING A SECOND REGULAR M6 NUT (10MM WRENCH) AND LOCKED THE TWO NUTS TOGETHER. ADDING THE SECOND NUT AND LOCKING THEM TOGETHER SHOULD PERMANENTLY FIX THE ISSUE.

NHTSA ODI 11145118

ON 10-15-17 I HAD AN INCIDENT OF AN UNINTENDED ACCELERATION AS I WAS TURNING INTO MY DRIVEWAY. THE CAR MADE A LOUD VROOM NOISE AND I TRIED TO BRAKE AND THE BRAKES FAILED ME AND I PUT THE CAR INTO PARK AND IT STILL MOVED WHERE IT HIT MY GARAGE DOOR. I HAVE TIRE MARKS ALL OVER MY DRIVEWAY FROM THIS INCIDENT. I WAS DRIVING A HYUNDAI SONATA SPORT AND THE DEALERSHIP OR CORPORATE DOES NOT WANT TO TAKE BACK THE CAR OR DO ANYTHING FOR ME BECAUSE THEY CLAIM NOTHING IS WRONG WITH THE VEHICLE BUT I KNOW THAT IS NOT TRUE.

NHTSA ODI 11046335

TL* THE CONTACT OWNS A 2017 HYUNDAI SONATA. WHILE PULLING INTO THE DRIVEWAY, THE VEHICLE ACCELERATED INDEPENDENTLY AND CRASHED INTO THE GARAGE. THERE WERE NO INJURIES. THE BRAKE PEDAL WAS DEPRESSED AND THE VEHICLE DID NOT RESPOND. THE VEHICLE WAS TOWED TO GOSCH HYUNDAI (100 CARRIAGE CIR, HEMET, CA 92545), BUT THE DIAGNOSIS WAS UNDETERMINED. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE. THE APPROXIMATE FAILURE MILEAGE WAS 26,000.

NHTSA ODI 11046077

THE SENSORS FOR BRAKING DID NOT WORK. I HAD AN ACCIDENT WHERE I REAR ENDED A TRUCK. THE BRAKES DIDN'T WORK, ONLY SLID INTO THE BACK OF THE TRUCK. I WAS ON A BUSY STREET WHEN AN EMERGENCY VEHICLE TURNED ON SIRENS AT THE LAST SECOND. THE TRUCK STOPPED AS IT SHOULD HAVE. I BRAKED AS HARD AS POSSIBLE BUT THE CAR KEPT GOING UNTIL IT COLLIDED INTO THE TRUCK. I HAVE READ REPORTS ON THE 2017 SONATA WHICH STATES THE CAR WILL STOP WHEN IT SENSES IMMINENT DANGER. THIS ONE DIDN'T. MY CONCERN IS- IS THERE MORE CARS LIKE THIS ONE OUT THERE THAT DON'T WORK AS IT SHOULD. I PURCHASED THIS CAR 02/2017. HAD ONLY 23 MILES. I TOOK MY CAR IN FOR SERVICING THE DAY BEFORE AND WAS TOLD THERE WAS A RECALL ON THE CAR. I NEVER RECEIVED A NOTICE OF RECALL AND STILL HAVEN'T. SUPOSSEDLY THAT WAS TAKEN CARE OF. THE INVOICE SHOWS THE RECALL WAS FOR ALTN SCREW. IT SHOWS IT WAS FOR SANTA FE SPT/SONATA.

NHTSA ODI 11005068

WHEN DRIVING LONG DISTANCE WHEN IN AN EMERGENCY SITUATION THE. TAKES FAILED TO OPERATE.

NHTSA ODI 10968576