2018 HYUNDAI SONATA Complaints

View complaints related to 2018 HYUNDAI SONATA. The complaints found here are submitted by actual consumers with first hand experience. There are more than 370 complaints submitted for the 2018 HYUNDAI SONATA. You can submit your own complaint to the NHTSA or call the Hotline, Monday-Friday 8am to 8pm at (888) 327-4236, TTY: (800) 424-9153.

  • 2018 HYUNDAI SONATA
    - Miami, FL

    The contact owns a 2018 Hyundai Sonata. The contact received notification of NHTSA Campaign Number: 21V619000 (Latches, Lock Linkages) however, the part to do the recall repair was not yet available. The local dealer was contacted and stated that the part was not yet available. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The manufacturer was made aware of the issue. The contact had not experienced a failure. Parts distribution disconnect.

    Source: HOTLINE VEHICLE OWNERS QUESTIONNAIRE
  • 2018 HYUNDAI SONATA
    - Phoenixville , PA

    I am affected by the new decal in regards to my trunk latch and it urgently needs to be fix. It would not open after multiple attempts and a few days later it started working again and now that it’s open it will not close

    Source: NHTSA WEB SITE
  • 2018 HYUNDAI SONATA
    - Memphis, TN

    2018 Hyundai Sonata sport. Purchased vehicle 03/20/2021 and it has been in the shop 5 times for the same issue. Car starts to smoke and make a loud knocking noise, when checking the oil, it appears to have no oil in the engine at all. Every single time they have changed the oil and replaced it and within a 1,000 miles the oil has completely dissolved in the engine. They performed a consumption test and stated that they did a top engine cleaning for the combustion and that it should not happen again and if it did that they would reach out to Hyundai to start the process of replacing the engine. Took it back at the 1,000 mile mark and they stated that it was fine, but after only a few weeks to a month the car started smoking and knocking again, took it back and yes the engine was bone dry again no oil at all on the dipstick. This vehicle has been in the shop more than I was able to drive it. The oil light keeps jumping on and off and the dealer is aware of this issue and they stated that the manufacturer is aware of this issue as well. But it seems that they are refusing to rectify the issue with a new engine and just keep patching the problem, that I would have to keep taking back every 1,00 miles for a consumption test. The oil ight was present when they sold me the vehicle but the dealership stated that they had performed an oil change and it needed to be reprogrammed but that did not fix the problem.

    Source: NHTSA WEB SITE
  • 2018 HYUNDAI SONATA
    - Dolton, IL

    1. Accelerator malfunctioned as I removed my foot to hit the brakes. The speed increased. When attempted to hit brakes, would not brake. The brake hardened up and car went through bank glass door and window. 2. It malfunctioned. 3. Vehicle is in the body shop. Will take to dealer when done 4. Police and insurance 5. No warnings

    Source: NHTSA WEB SITE
  • 2018 HYUNDAI SONATA
    - Olathe, KS

    The contact owns a 2018 Hyundai Sonata. The contact stated while driving 55 mph, the check engine warning light illuminated. The contact stated that the change the oil was changed every 3,000 miles instead of ever 3,500. The contact stated that there was no oil leak found. The contact took the vehicle to the local dealer who was unable to determine the cause of the failure. The manufacturer had not been informed of the failure. The failure mileage was 37,291.

    Source: HOTLINE VEHICLE OWNERS QUESTIONNAIRE
  • 2018 HYUNDAI SONATA
    - Pittsburgh, PA

    6/5/21 2018 Hyundai Sonata - less than 20K miles Turning left into parking lot at very low speed Car completely lost all power and brakes - all dashboard lights etc went out No warning of any kind - nothing evenly remotely like this has happened before Was able to glide into parking spot and stop but only with extreme pressure on brake Key was still in on position - put car in park, set parking brake, turned key to off Car started again and was able to drive about 1/4 mile back home Immediately called dealer from whom we purchased and had car towed No diagnosis as of yet

    Source: NHTSA WEB SITE
  • 2018 HYUNDAI SONATA
    - NORWICH, NY

    THE OIL CONSUMPTION IS OUT OF CONTROL FOR THEIR VEHICLES I'VE HAD MORE OIL CHANGES THAT I'VE EVER DONE ON A VEHICLE I'VE DONE OIL CONSTRUCTION TESTS AND THEY ALWAYS SAY IT'S JUST AT THE 1 QUART THAT THEY ALLOW WHO'S IS BULL I'VE CHECKED MY OIL COLD AND IT'S HARDLY ON THE STICK AND THE OIL LIGHT HAS COME ON NUMEROUS TIMES I'M NO GENUS BUT I DO KNOW IT'S MORE THAN A QUART LOW WHEN YOUR OIL LIGHT COMES ON. AT 1,100 MILES IT WAS 2.5 QUARTS LOW AND I WAS FORCED TO DO ANOTHER OIL CHANGE WHEN I ONLY HAD 1,100 MILES ON THIS ONE. THE FIRST PIC I'VE ATTACHED IS COLD OIL LEVEL AT 1,100 MILES AFTER OIL CHANGE. THE CAR ONLY HAS 53K ON IT AND I WANT TO KNOW HOW MANY TIMES DO WE HAVE TO DO OIL CONSUMPTION TESTS TO GET IT FIXED UNDER THE LIFETIME ENGINE REPLACEMENT AND FORGET ABOUT THE ROADSIDE ASSISTANCE FROM HYUNDAI THEY TOW 20 MILES THAT'S IT AND THE REST IS ON YOU HOW IS THAT FAIR WHEN IT'S NOT YOUR PROBLEM TO BEGIN WITH.

    Source: NHTSA WEB SITE
  • 2018 HYUNDAI SONATA
    - PHOENIX, AZ, AZ

    2018 HYUNDAI SONATA WAS IN MOTION, WITH A SPEED OF APPROXIMATELY 20 MILES PER HOUR, WHEN A VEHICLE IN FRONT OF THE HYUNDAI SONATA STOPPED SUDDENLY AND THE 2018 HYUNDAI SONATA REAR ENDED THE OTHER VEHICLE. THE 2018 HYUNDAI SONATA'S AIRBAGS DID NOT DEPLOY. DAYS PRIOR TO THE MOTOR VEHICLE ACCIDENT, THE THE OWNER DISCOVERED THE DRIVER'S SIDE SEATBELT WOULD NOT RETRACT TO CREATE TENSION AFTER INITIAL APPLICATION TO SECURE SEATBELT HOWEVER, TENSION OF THE SEATBELT WAS IDENTIFIED WITH APPLICATION OF THE BRAKES, WHILE LEANING FORWARD, AND WHILE 2018 HYUNDAI SONATA WAS IN MOTION. CONCERN IS THE FACT THE AIRBAG DID NOT DEPLOY APPROPRIATELY DURING A FRONT END COLLISION WHILE IN MOTION AT APPROXIMATELY 20 MILES PER HOUR; POSSIBLY RELATED TO NHTSA ACTION NUMBER EA19001, APRIL 19, 2019, REGARDING THE 'AIR BAG ACU ELECTRICAL OVERSTRESS' THAT IS CURRENTLY OPEN AND UNDER INVESTIGATION. SEE PICTURES ATTACHED.

    Source: NHTSA WEB SITE
  • 2018 HYUNDAI SONATA
    - LEXINGTON, OH

    ONE OF MY CONTINENTAL PURE CONTACT TIRES FAILED AT HIGHWAY SPEED AT 4,926 MILES. ALL FOUR TIRES WERE PURCHASED NEW FROM MY DEALER ON 11/25/20. MILEAGE AT THAT TIME WAS 47,314. ON1/21/21 WITH AN ODOMETER READING OF 52,240, ONE TIRE DEVELOPED A LEAK AT THE INTERSECTION OF THE SIDEWALL AND TREAD -- THERE WAS NOTHING STUCK IN THE TIRE INDICATING A PUNCTURE -- YET THERE WAS A HOLE IN THE TIRE. THE TIRE COULD NOT BE FIXED SO I HAD TO BUY A DIFFERENT BRAND TIRE TO REPLACE IT BECAUSE THE TIRE SHOP DID NOT CARRY CONTINENTAL TIRES. WITH THE RECENT RECALL OF MANY TIRES BY CONTINENTAL, I AM CONCERNED THAT MY THREE REMAINING CONTINENTAL TIRES MAY NOT BE DEPENDABLE. I CONTACTED CONTINENTAL DIRECTLY AND WAS TOLD THAT THE PURE CONTACT TIRE IN MY SIZE (215/55SR17) IS NOT INCLUDED IN THE RECALL WHILE OTHER SIZES ARE INCLUDED.

    Source: NHTSA WEB SITE
  • 2018 HYUNDAI SONATA
    - CLEVELAND, OH

    I WAS DRIVING BEGAN MY SONATA IN MODERATE TO HEAVY TRAFFIC.WITHOUT WARNING THE VEHICLE BEGAN LURCHING. I WAS UNABLE TO CONTROL IT. THE HYUNDAI HAD A MIND OF ITS OWN. I GOT THE "CHECK ENGINE" LIGHT ON & SOME MESSAGE ON THE SCREEN THAT I COULD NOT READ BECAUSE I WAS DRIVING. I PULLED OFF THE ROAD & HAD THE CAR TOWED TO A HYUNDAI DEALER. UPON RETURN OF THE CAR, THE DEALER EXPLAINED THAT HYUNDAI TOOK CONTROL OF THE CAR AS A "SAFETY PRECAUTION" FOR THE ENGINE. THIS IS AN UNSAFE SAFETY PRECAUTION. THEY NOT I CONTROLLED THE CAR.

    Source: NHTSA WEB SITE