10.0

really awful
Crashes / Fires:
1 / 0
Injuries / Deaths:
0 / 0
Average Mileage:
0 miles

About These NHTSA Complaints:

This data is from the NHTSA — the US gov't agency tasked with vehicle safety. Complaints are spread across multiple & redundant categories, & are not organized by problem.

So how do you find out what problems are occurring? For this NHTSA complaint data, the only way is to read through the comments below. Any duplicates or errors? It's not us.

2021 Hyundai Sonata fuel system problems

fuel system problem

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2021 Hyundai Sonata Owner Comments

problem #8

Mar 082024

Sonata

  • miles

A D V E R T I S E M E N T S

Was parked in bank parking lot. Started engine, placed car in reverse and car accelerated at a very high rate of speed. (like I was in a drag race!!) applied brakes, which did not slow the vehicle down. Did not stop until I ran into a parked car. Whole incident took just seconds. Car had been in for regular service at the dealers on [xxx]. now has 16,597 miles on vehicle. Car to be serviced at rachels collision, 720 S nova road, daytona beach, fl on Monday [xxx]. if I had not ran into a parked car, I would have entered [xxx] in daytona beach shores, fl which was crowded with motorcycles.... Friday noon during bike week. Information redacted pursuant to the Freedom Of Information Act (FOIA), 5 U.S.C. 552(B)(6)

- Ponce Inlet, FL, USA

problem #7

Oct 102023

Sonata

  • miles
Battery keeps dying randomly. Approximately once every other week and I drive 12k miles a year-?? dealership reassures me it-??s find. Found numerous reports of other Sonota Hybrid users experiencing a similar issue.

- Wylie, TX, USA

problem #6

Jun 042023

Sonata

  • miles
When attempting to pass other vehicles or under quick acceleration such as an on ramp to the highway, the vehicle will experience a sudden loss of power and oil pressure resulting in a fail safe mode which limits your acceleration and causes a sudden decrease in speed and velocity. The issue results in the oil pressure light illuminating and requires the vehicle to be stopped and completely turned off to reset then once turned back on, the problem is -??gone-?? until a sudden acceleration occurs again, which results in the same issue happening. There is a current recall out for similar models but my vin is not listed. I have approximately 50k miles on the car, and am the first owner.

- Clarksville, TN, USA

problem #5

Apr 102023

Sonata

  • miles

A D V E R T I S E M E N T S

When I arrived in the parking lot and selected the R (reverse), the vehicle stayed in the D (Drive) although that it was moving backwards and was able to park it. The shift selector was stuck in DRIVE (Drive) leaving the vehicle on but not operational. After several attempts to allow the vehicle to cool and the battery to reset, (30 minutes_ later), the car started and took the vehicle to be serviced. The vehicle technician said they had a difficult time diagnosing the vehicle because it was giving different codes. They said that while testing they found the Transmission Shift Selector Module was damaged. Not physically but electronically damaged. They also stated that the car could have other problems but that they needed to replace the module first because it could be the cause of the other errors.

- Arlington, VA, USA

problem #4

Nov 212022

Sonata

  • miles
Incident sounds similar to those experienced with the dual clutch transmissions. November 2022, all of the vehicle warning lights were on and remained on. The vehicle would not move and the transmission selector/shifter was locked in place. Working with the local service/dealership, the vehicle was repaired after 3 weeks with a new transmission shift actuator (or possibly other part). Similarity in the experience and possibility of risk with little information about trends or others in similar situations or resolution. We've had another (Same make/model/year) vehicle present similar circumstances.

- Woodbridge, VA, USA

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problem #3

Feb 162023

Sonata

  • miles
My car barely has 11,000 miles and just the other day it had about 20miles left of gas but as I was driving on the road it started to feel and seem like it was about to die on me, Also the front Wipers are not well restrained with the vehicle you can tell by the way it moves when Wipers are on....Also most of the Signals be It if something is in front of me and the signal goes off BUT THERES NOTHING THERE...ALSO WHEN IM BACKING UP SOMETIMES the car itself will Force stop as if something is in the way...BUT AGAIN NOTHING IS THERE AT ALL...IT HAPPENS EVERY FEW DAYS....I JUST PURCHASED THIS CAR..AND REALLY THINKING IT WAS WORST MISTAKE W ALL THESE ISSUES ALREADY

- Las Vegas, NV, USA

problem #2

Oct 172022

Sonata 4-cyl

  • miles
Oct 12: Engine stalled exiting I95 in Kittery Maine. Engine light flashed but did not stay on. Was able to get to safe place but car would not go more than 15mph. Hampton Huyndai reported mis-fire but stated it cleared on its own. Oct 17th: Engine stalled on highway ramp to I495, nearly causing me to be rear ended by other vehicles. Car would not go more than 15 mph. Engine light stayed on. Towed car to Key Salem Hyundai, defective injectors, warrantee repair. Oct 23rd: Car stalls on I93, was able to take immediate exit and turn engine off. Engine light flashed but did not stay on. Took car in to Salem dealership on Oct 24th, no code found. Oct 25th: Car stalls again on city street. Light stays on, Salem dealership replaces cat. convrtr between Oct 26th through Nov 4th. Nov 9th: Car stalls again on city street. Light stays on, currently in Salem dealership. This is a safety issue, in two cases already this car has nearly gotten me in an accident on the highway. I am seeking arbitration for replacement. I am scared to drive this vehicle. I will have a third invoice pending this next repair.

- Salem, NH, USA

problem #1

Aug 262022

Sonata

  • miles
Unknown

- Morrisville, NC, USA

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