2018 Hyundai Sonata Problems and Complaints


Ranked #8 in Midsize Sedan

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2018 Hyundai Sonata Sedan Problems, Issues, Complaints, Recalls, and Which Year to Avoid

Updated on: May 5, 2022

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Nathan Dyer 

Senior Editor

Hyundai Sonata is a very familiar name in the budget sedan segment and this car has been selling like hot cakes for the brand. Even though this segment is highly competitive, Sonata has managed to establish itself as one of the key players along with the Kia Optima, the Honda Accord, and the Toyota Camry. The 2018 Hyundai Sonata has a great balance between drive quality, reliability, and build quality. With a starting price of $19,550, the Hyundai Sonata is the most affordable sedan and is also reliable with only a single recall and a total of 130 complaints.

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User complaints and problems

Electrical Problems

  • Wiring harness – Post an update, the wiring harness has a lot of interference due to which the car started misfiring with the engine warning lights on.
  • Lights – The cabin light when set to auto does not turn on when the driver’s door is open.
  • Radio – When the heat is turned on, the radio was noticed to go static.
  • Forward collision avoidance – The sensor became inoperable and the dealers weren’t able to fix it.

Mechanical Problems

  • Engine – Multiple users reported the engine to not respond when trying to accelerate from a stop position and hesitates to move forward. There also were complaints stating the car decelerated down to 30 mph on its own and wouldn’t go past that speed and this issue occurred after a visit to the dealer.
  • Brakes – Users reported the brakes not working at times as they failed to slow the car down. Also, the car was reported to move even after the emergency brake was applied. The auto emergency braking feature gets engaged at times without the presence of other vehicles around and slams the brakes hard by itself.
  • Steering – When making turns, the steering made a grinding noise.
  • Suspension – The front suspension control arm got disconnected and the driver lost control.

Safety Problems

  • Airbags – Airbags were reported to not deploy during a crash.
  • Seatbelt – Certain users claimed the seatbelt to not lock properly and there also were complaints stating that there was no tension on the belt when braking hard which can increase the injury during a crash.

Exterior Problem

  • Headlamps - The headlamps don’t cover all the required areas and also project two dark shadows on the road when using the low beam.
  • Door handle – The front passenger door handle reportedly came off when trying to open the door.
  • Trunk door – The hatch failed to close due to a broken plastic component that was stuck near the hinge.
  • Tires – The rear driver side tire just blew out without running over a pothole.
  • Wiper – The passenger side wiper doesn’t work every time.


S. No.



Issues Noticed

Additional Remarks



6th August 2021


Trunk emergency release may fail.

A jammed trunk latch may become damaged making it impossible to open the trunk.

The trunk latch base will be replaced by the dealers.

Should you buy the 2018 Hyundai Sonata?

The 2018 Hyundai Sonata has to be one of the best sedans for the money as it comes in at a very affordable price. The Sonata offers a spacious cabin with a practical layout and the car has a great balance between power and efficiency. This sure isn’t the most powerful car in the segment but its competitors are much more expensive in comparison. This undoubtedly is the car we’d recommend if you’re looking for a car under the $20 grand budget but if you can push the number to $24,000, the Toyota Camry is a better car in terms of power and build quality. Nonetheless, we can assure you that the Sonata wouldn’t disappoint as it is a great package.

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