2018 Hyundai Sonata

SPECS

2018 Hyundai Sonata at a glance

Engine

4-cyl 1.6L

Cylinders

4

Displacement

1.6 L

Drivetrain

Front-Wheel Drive

Transmission

Automatic (AM7)

Body

Large Cars

Fuel

Regular

Source: EPA / NHTSA vPIC, as of July 10, 2026.

NHTSA has opened one or more investigations covering this model. Recalls can follow an investigation, so check NHTSA for the latest before you buy.

Open safety recalls are free to fix at any franchised dealer. What recalls mean → Source: NHTSA recalls, as of July 10, 2026. Recalls can be issued any time, confirm by VIN at nhtsa.gov before you buy.

• ENGINE

  I purchased my vehical at Car Culture in Warren, Oh. The dealer said to only take it there for maintenance, so I did as required. Whenever the check engine light came on I would bring it there and they would say it was a sensor and they fi

  123

• ELECTRICAL SYSTEM

  We think there’s an issue with the abs module and wheel speed sensor because we started having a problem where the brakes wouldn’t work or would stutter. The car would shake real bad it would make an awful grinding sound but normally only w

  51

• UNKNOWN OR OTHER

  I was only in the car for about 4 minutes then came to a stop light. Once the light had turned green I pressured down on the gas, my car rolled for a second then died on me, causing it to go into accessory mode. Instantly three lights came

  44

• POWER TRAIN

  Check engine light solid/engine failure while driving. 2018 Sonata SE purchased new in fall 2018. Around 50,000 miles started noticing oil level drop and had to add more before next scheduled change. Dealership service center said I just ha

  36

• EXTERIOR LIGHTING

  THE HEADLIGHT LOW BEAMS ARE DANGEROUS AND NEED TO BE RECALLED ASAP? After his death, I acquired this vehicle from my father who had stopped driving at night thinking he had developed a vision issue. The first time I drove it at night I disc

  18

• STRUCTURE

  The trunk latch on the Hyundai Sonata malfunctioned, and our safety was put at risk when the trunk malfunctioned while driving on the freeway, obstructing the back view. After several attempts to try to close the trunk and after doing some

  14

Problems owners reported to the government, useful for spotting patterns, not proof any one car has them. What complaints mean → Source: NHTSA complaints, as of July 10, 2026. Owner-submitted reports, not verified diagnoses.

CRASH-TEST RATINGS · NHTSA NCAP

Overall

★★★★★

Frontal

★★★★★

Side

★★★★★

Rollover

★★★★☆

Government crash tests of this model; not every trim or year is tested. Source: NHTSA NCAP, as of July 10, 2026.

FUEL & RUNNING COST · U.S. EPA

Combined

31 mpg

City / Hwy

28 / 37

Est. fuel / yr

$2,000

CO₂ / mi

284 g

EPA lab estimates; real mpg varies by how you drive. Source: EPA fueleconomy.gov, as of July 10, 2026. Annual cost assumes 15,000 mi/yr at EPA's reference price.