2016 Kia Optima Other or unknown Problems
- Complaints
- 123about this part
- Share
- 16%of 760 total for the year
- Median mileage
- 36,611miles
- Trend
- StableComplaints filed in the last 3 full calendar years are within 25% of the 3 years before.
NHTSA recorded 123 complaints about the other or unknown of the 2016 Kia Optima, 16% of the 760 complaints for this model year. Where a mileage was given, the median is 36,611 miles. 5 of these say a crash was involved and 4 a fire, according to the filers.
Example complaints
Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.
“The windows fall on their own and not operative while driving. It has happened to me twice so far and took the car to dealer. I am trying not to lower my windows at all for now. It is serious when it rains & water gets inside the car, I live in florida and it rains a lot. Any solution ?”
NHTSA complaint #11354589, filed 2020-09, 30,034 miles“There was a new vibration sound when we started driving our car yesterday. It sounded like a panel was a little loose or something. Within 15 minutes of driving it on the interstate we heard an explosion and it was the sunroof bursting into pieces. Freaked us out with the loud noise. We”
NHTSA complaint #11290817, filed 2019-12, 68,000 miles“I was just getting on to the highway and my sunroof exploded! It took me a second to realize thats what had happened it sounded like a very loud pop or gun shot almost I pulled over and seen my entire sunroof had exploded”
NHTSA complaint #11387430, filed 2021-01, 65,000 miles“Since I had the car in aug2016 brand new when I give it gas the valves ping and peak extremely bad not matter what fuel I use also the AC keeps loosing power it will blow fine then it almost goes off while still driving the same speed. Also sometimes when this happens I have a miss or hesitation in the engine. There has also been a pop noise in the back end when I stop or slow down since I have had the vehicle. …”
NHTSA complaint #11003963, filed 2017-07, 6 miles“Since I bought 2016 Kia Optima ex, there has being windows problem on this model. Either window regulator or module panel or some thing else cause windows to drop down while your driving, or malfunction does not operate at all. At least 4 times I took to dealer to fix it, but in short period of time happens again, it is not one window happens to all of them. I am sick & tired of going to dealer to waste my time. It is serious problem with Kia and should redesign the operating window system.”
NHTSA complaint #11354586, filed 2020-09, 37,222 milesOther or unknown: other model years
| Year | Complaints | Share of year |
|---|---|---|
| 2020 | 18 | 12% |
| 2019 | 43 | 20% |
| 2018 | 39 | 17% |
| 2017 | 33 | 13% |
| 2016 | 123 | 16% |
| 2015 | 140 | 14% |
| 2014 | 90 | 15% |
| 2013 | 189 | 14% |
| 2012 | 88 | 10% |
| 2011 | 41 | 7% |
| 2010 | 5 | 7% |
| 2009 | 3 | 3% |
| 2008 | 9 | 6% |
| 2007 | 4 | 2% |
| 2006 | 9 | 6% |
| 2005 | 6 | 4% |
| 2004 | 12 | 5% |
| 2003 | 7 | 5% |
| 2002 | 1 | 1% |
| 2001 | 4 | 3% |
Other parts of the 2016 Kia Optima
426 complaintsElectrical system
104 complaintsTransmission and drivetrain
74 complaintsFuel system
62 complaintsExterior lighting
47 complaintsBody and structure
41 complaintsVisibility (wipers, defrost, mirrors)
38 complaintsVehicle speed control
29 complaintsAir bags
24 complaintsBrakes
24 complaintsEngine cooling
24 complaintsSteering
24 complaints
← All problems reported for the 2016 Kia Optima
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