Problems · NHTSA complaints
2021 Kia Sedona problems
Owners filed 10 complaints about the 2021 Kia Sedona with NHTSA between Apr 2021 and Oct 2026. The most-cited component is engine (2).
Complaints
10
Filed with NHTSA
Crashes
2
Reported by owners
Fires
0
Reported by owners
Injuries
1
People reported injured
Deaths
0
Reported to NHTSA
Complaints by component
One complaint can cite several components
- Engine2
- Electrical system2
- Vehicle speed control2
- Tires2
- Structure1
- Exterior lighting1
- Lane departure1
- Air bags1
- Seat belts1
- Forward collision avoidance1
- Other / unknown2
Complaints are unverified owner reports to NHTSA and are not normalized for sales volume. One complaint can cite several components.
Data from NHTSA Complaints API · synced Oct 31, 2026NHTSA vehicle page
When complaints were filed
Does it get worse with age? Complaints per calendar year filed
2
0
1
1
4
2
View as table
| Model year | Complaints filed per calendar year |
|---|---|
| 2021 | 2 |
| 2022 | 0 |
| 2023 | 1 |
| 2024 | 1 |
| 2025 | 4 |
| 2026 | 2 |
Mileage at failure isn’t a structured field in NHTSA complaint data, so we don’t chart it. Some owners mention it in their reports below.
Top problems in owners’ words
Verbatim from NHTSA complaints, newest first
Engine
2 reports
“This vehicle is burning oil at an alarming rate. Between oil changes it has lost 4 quarts before. I constantly have to check and add oil and have experienced stuck pistons and rough idle due to the oil not being at a safe level. Kia service advisors have admitted there have been reports of this happening with this engine, but no recall or inspection has been initiated to my knowledge. They did just issue an optional emission campaign that I completed, but it is unrelated to the oil burn issue.”
Electrical system
2 reports
“For starters, my lights go out every six months on queue. Cannot find a reason why. My car sputters or shutters when accelerating. I heard other Kia models have recalls due to the same thing. I have had my car in the shop multiple times and no one can figure out why it is doing it. It feels like the belts are slipping or the transmission is slipping or something, but no one can find a legit reason as to why. This has been happening since I bought the car and it has never stopped with anything I have tried to do or I’ve had inspected.”
Vehicle speed control
2 reports
“We purchased a brand-new 2021 Kia Sedona in 2021. Since January, we’ve been experiencing an intermittent but serious issue where the vehicle refuses to accelerate or shift beyond a certain point. This issue has put us in dangerous situations multiple times. One incident occurred while crossing a fast-moving, single-lane road—our vehicle would not accelerate to the appropriate speed, placing us at serious risk. On another occasion, while merging onto a highway, the car failed to accelerate, and we feared being rear-ended due to our inability to keep up with traffic. There are no warning lights or error messages to indicate a problem when this occurs. The only temporary solution has been to pull over, turn the car off, and restart it. After doing this, the vehicle functions normally for a few days, weeks, or even months before the issue reoccurs. We have taken the vehicle to our local Kia dealership, but they were unable to replicate the problem or identify any issues. We also brought it to a second Kia dealership with the same result—no diagnosis and no resolution. We are extremely concerned for our safety and would appreciate guidance on how to escalate this…”
Tires
2 reports
“The first of four tire failures (all the same DOT Number) of the OEM tires that were on the 2021 Kia Sedona when purchased in April, 2021. The first tire belt broke when on an approximate 1000 mile drive and was replaced on an emergency basis on January 24, 2024 with 16,760 miles on the vehicle. The second tire belt broke on the trip home and was replaced on an emergency basis on March 8, 2024 with 18,927. After arriving home, the tires were inspected, found to have defective belts and were replaced with a warranty adjustment by Discount Tire in Oswego with 19,191 miles. Kumho has still not honored the warranty by sending checks for the first two defective tires. (Can't find receipt from warranty replacement by Discount Tires but will continue looking. Have many photos of defective tire if desired.)”
Structure
1 report
“the drivers side passenger sliding door will not latch or close properly. The door started opening while driving and would not close. Luckily i had no children in the car at the time. The safety of my CHILD or any passenger could have been at risk. Driving while a van door is OPENING. I am taking it to the dealer this morning. Have to figure out how to get it there since the door wont close. Has not been inspected yet. The door ajar started to go off and the door started opening.”
Exterior lighting
1 report
Data from NHTSA Complaints API (owner reports, unverified) · synced Oct 31, 2026
Complaints are unverified owner reports to NHTSA and are not normalized for sales volume. One complaint can cite several components.