Vehicle Data Hub

2021 Kia K5 engine problems

Owners reported engine problems in 33 complaints for the 2021 Kia K5, 12% of the complaints on file. It is the 3rd most reported problem area for this model year.

At a glance

Complaints
33 13% of this year's complaints
Typical mileage
52,000 miles 12 complaints with mileage
Crashes and fires
0 and 1
Injuries and deaths
0 and 0

Source: NHTSA owner complaints

When engine problems show up

Engine complaints by mileage, 2021 Kia K5 Complaints by odometer reading in 20,000-mile steps. The median is about 52,000 miles. 0k to 20k miles: 3 complaints 20k to 40k miles: 1 complaints 40k to 60k miles: 4 complaints 60k to 80k miles: 0 complaints 80k to 100k miles: 1 complaints 100k to 120k miles: 1 complaints 120k to 140k miles: 1 complaints 140k to 160k miles: 0 complaints 160k to 180k miles: 0 complaints 180k to 200k miles: 0 complaints 200k+ miles: 1 complaints 040k80k120k160k200k miles Typical: 52,000 miles
Based on 12 complaints that include mileage. 67% 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 miles3
20k to 40k miles1
40k to 60k miles4
60k to 80k miles0
80k to 100k miles1
100k to 120k miles1
120k to 140k miles1
140k to 160k miles0
160k to 180k miles0
180k to 200k miles0
200k+ miles1

What the data shows

Of the 12 engine complaints that report mileage, the median is about 52,000 miles, and 67% were reported before 60,000 miles.

These complaints mention 1 fire.

What owners wrote

Vehicle was stopped a red light on a city street when suddenly cut off. Smoke began to pour out from under the hood. Less than 1 minute later the vehicle was fully involved under the hood of car. Car was a total loss. Vehicle had just been driven approximately 25 miles (all highway) from home towards work when incident occurred.

Reported at 3,000 miles, May 2021 Fire

The contact owns a 2021 Kia K5. The contact stated that there was an abnormal odor of fuel. The check engine light was illuminated. The contact received the recall notice for NHTSA Campaign Number: 25V794000 (Fuel System, Gasoline). An unknown local dealer was contacted, but the vehicle was not diagnosed or repaired. The manufacturer was contacted, but no assistance was provided. The failure mileage was approximately 200,000.

Reported at 200,000 miles, March 2026

Other problems reported for the 2021 Kia K5

Engine problems in other years

  • 2027
  • 2026
  • 2025
  • 2024
  • 2023
  • 2022
  • 2021

Engine problems across all Kia models