Vehicle Data Hub

2018 Hyundai Sonata engine problems

Owners reported engine problems in 226 complaints for the 2018 Hyundai Sonata, 41% of the complaints on file. It is the most reported problem area for this model year.

At a glance

Complaints
226 41% of this year's complaints
Typical mileage
24,000 miles 69 complaints with mileage
Crashes and fires
3 and 8
Injuries and deaths
2 and 0

Source: NHTSA owner complaints

When engine problems show up

Engine complaints by mileage, 2018 Hyundai Sonata Complaints by odometer reading in 20,000-mile steps. The median is about 24,000 miles. 0k to 20k miles: 29 complaints 20k to 40k miles: 11 complaints 40k to 60k miles: 8 complaints 60k to 80k miles: 5 complaints 80k to 100k miles: 5 complaints 100k to 120k miles: 6 complaints 120k to 140k miles: 3 complaints 140k to 160k miles: 1 complaints 160k to 180k miles: 0 complaints 180k to 200k miles: 1 complaints 200k+ miles: 0 complaints 040k80k120k160k200k miles Typical: 24,000 miles
Based on 69 complaints that include mileage. 70% were reported before 60,000 miles. The amber marker shows the median: half of these complaints happened before that mileage.
View the numbers
MileageComplaints
0k to 20k miles29
20k to 40k miles11
40k to 60k miles8
60k to 80k miles5
80k to 100k miles5
100k to 120k miles6
120k to 140k miles3
140k to 160k miles1
160k to 180k miles0
180k to 200k miles1
200k+ miles0

What the data shows

Of the 69 engine complaints that report mileage, the median is about 24,000 miles, and 70% were reported before 60,000 miles.

These complaints mention 3 crashes, 8 fires, 2 injuries.

What owners wrote

I was the owner of a 2018 Sonata until I was t-boned and the car was totaled. I started to make a left turn into a school parking lot when the engine kind of stalled or more like stuttered and did not go forward as usual. The oncoming car then struck me before I was completely in the driveway. My vehicle was totaled as was the other one. Fortunately no one was on the passenger's side where the other car hit me. However the seat belt did not engage which resulted in me slamming very hard into the steering column.

September 2023 CrashInjury

The contact owns a 2018 Hyundai Sonata. The contact stated that after starting the vehicle, the engine oil warning light illuminated intermittently. The contact pulled over to check the engine oil level and discovered that there was no oil in the engine. The vehicle was taken to Midas, and engine oil was added. The vehicle was later taken to another Midas, who found a crack in the engine oil pan.

Reported at 99,000 miles, June 2023

Other problems reported for the 2018 Hyundai Sonata

Engine problems in other years

Engine problems across all Hyundai models