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Electrical systemPart report

2019 Kia Optima Electrical system Problems

Complaints
23about this part
Share
11%of 212 total for the year
Median mileage
18,000miles
Trend
RisingComplaints filed in the last 3 full calendar years are at least 25% higher than in the 3 years before.

NHTSA recorded 23 complaints about the electrical system of the 2019 Kia Optima, 11% of the 212 complaints for this model year. Where a mileage was given, the median is 18,000 miles. 3 a fire, according to the filers.

Example complaints

Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.

“I've had this car going on three years sometimes not all the time I will go to start it and it will barely start so I took it to the dealership three times when I got my oil change and they checked the battery but they're saying the battery is good and the starting system the car will just be sitting in my garage and I try to start it it just sounds like it's barely starting and then the next time I started it's fine”

NHTSA complaint #11415708, filed 2021-05, 30,000 miles

“When my phone is plugged into the charger, my screen will go black all of a sudden, and I have to turn the car off and unplug my phone and turn the car back on for the screen to come back on. Also, there have been several occasions where my brakes lock up on me, and I almost hit the person in front of me. Especially in the rain, and I have even had to swerve off the road to avoid a collision. It happens when I am in motion driving and go to stop. The radio screen though has turned off on me whether I am driving or in park.”

NHTSA complaint #11310756, filed 2020-02, 9,000 miles

“The cars usb port always disconnects from the cell phone cord. It cuts off my sirisxm and maps. I have to re-plug in the cell cord to have the things come back on. This happens while the car is moving both on city and highway. When I was at a Kia dealership there was someone else that had the same problem. The cell phone store said they receive complaints about from their other customers. Not sure when it started. It seems like since I bought it. There are over 120,000 miles on my car. Over the smallest bump this can happen. If I put my cell on my car window holder it happens less frequently. …”

NHTSA complaint #11414291, filed 2021-04, 25 miles

“I bought my 2019 Optima brand new back in november. It is now june and I have had it back to the dealership 3 times for randomly not starting on me. I get the same answer every time. They don't know what it is, nothing comes up on the computer when they plug it in. They say, if it happens again, call us and well take it in . Buying this car brand new and my payments being that of a range rover, I am extremely upset. To top it off, the back windshield is slipping down. I am over this car and I will never buy another Kia again. But, my fight is not over, something will have to be done. …”

NHTSA complaint #11223068, filed 2019-06, 2,000 miles

“Odometer Fraud. The contact purchased a 2019 Kia Optima. The contact stated that it was discovered that there was a mileage discrepancy after the purchase. The vehicle was a dealer sale. At the time of purchase, the vehicle mileage was 51,000. It was later discovered that the mileage was 82,000.”

NHTSA complaint #11686553, filed 2025-09, 82,000 miles

Related service bulletins

Electrical system: other model years

YearComplaintsShare of year
2020149%
20192311%
20183314%
20172510%
201610414%
201513513%
20146010%
201314611%
201212213%
20116311%
20101317%
20091614%
20081510%
2007148%
20062315%
20052920%
20044520%
20032518%
20021413%
20011712%

Other parts of the 2019 Kia Optima

Engine
92 complaints
Other or unknown
43 complaints
Forward collision avoidance
36 complaints
Brakes
19 complaints
Fuel system
18 complaints
Transmission and drivetrain
17 complaints
Body and structure
14 complaints
Air bags
12 complaints
Vehicle speed control
10 complaints
Lane departure
7 complaints
Steering
6 complaints
Electronic stability control
3 complaints

← All problems reported for the 2019 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