2021 Kia K5 Other or unknown Problems
- Complaints
- 32about this part
- Share
- 19%of 169 total for the year
- Median mileage
- 6,842miles
- Trend
- RisingComplaints filed in the last 3 full calendar years are at least 25% higher than in the 3 years before.
NHTSA recorded 32 complaints about the other or unknown of the 2021 Kia K5, 19% of the 169 complaints for this model year. Where a mileage was given, the median is 6,842 miles. 2 of these say a crash was involved, according to the filers.
Example complaints
Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.
“I was traveling at approximately 40-45 MPH, another vehicle crossed in my path, and I broadsided his vehicle. I am not sure of my speed at impact. I would guess 30 MPH. Airbags did not deploy. The rear drivers side seat also came unlatched, folding itself down. There were no other passengers in the vehicle.”
NHTSA complaint #11394262, filed 2021-02, 10,400 miles“While I was driving on the interstate, I heard and abnormal about of noise coming from the engine bay as well as a scratch while I was driving. This happened on march 26, 2021 at 10pm. On march 29, 2022 I took it to the dealer ship and I was notified that my engine cover came off and was the cause of the noise. There's damage to my driver side fender, rubbing to the wheel/tire and my fog light housing is hanging.”
NHTSA complaint #11405416, filed 2021-03, 3,285 miles“HVAC is not working at all, not even blowing hot air. I've been told it could be a wiring issue or have to change my blower and resistor. KIA has told me they could not help because my car is over the 60,000 mile warranty. However, my car is 70,000 miles and about 4 years old. It has had other recall issues and just trying to be helped.”
NHTSA complaint #11682417, filed 2025-08“Manufacturer has failed to remedy the safety recall for my vehicle in a timely manner. Vehicle is a fire risk and I am unable to drive it. My vehicle has been sitting at the dealership service center for over a month. I have not been contacted by Kia as of yet even after repeated phone calls and emails for updates.”
NHTSA complaint #11734630, filed 2026-04“I was driving down the highway when I heard a loud explosion like a gunshot that caused me to slow down and almost getting into an accident. It was scary; I came to a stop and realized that my sunroof had exploded. There is a large hole in my sunroof bigger than a watermelon with glass particles everywhere.”
NHTSA complaint #11674500, filed 2025-07Other or unknown: other model years
Other parts of the 2021 Kia K5
57 complaintsElectrical system
46 complaintsEngine
30 complaintsTransmission and drivetrain
19 complaintsAir bags
10 complaintsBrakes
10 complaintsBody and structure
10 complaintsForward collision avoidance
9 complaintsLane departure
9 complaintsSeats
8 complaintsSteering
7 complaintsVisibility (wipers, defrost, mirrors)
5 complaints
← All problems reported for the 2021 Kia K5
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 27, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.
To check a specific vehicle for open recalls, use its VIN at nhtsa.gov/recalls. Methodology