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Electrical systemPart report

2017 Kia Optima Electrical system Problems

Complaints
25about this part
Share
10%of 257 total for the year
Median mileage
24,000miles
Trend
FallingComplaints filed in the last 3 full calendar years are at least 25% lower than in the 3 years before.

NHTSA recorded 25 complaints about the electrical system of the 2017 Kia Optima, 10% of the 257 complaints for this model year. Where a mileage was given, the median is 24,000 miles. 1 of these say a crash was involved and 2 a fire, according to the filers.

Example complaints

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

“While I was driving probably about 45 miles an hour or so my car started to shake really hard then it shut off. Once it shut off the low oil light came on along with the check engine light and the low battery light as well. After that the car went completely dead. I turned the key to the off position and then tiredness it back on with with no problem. For my car to shut off while driving on a major street causes major concerns. One what if it happens again and I get in an accident or cause an accident.”

NHTSA complaint #11220785, filed 2019-06, 39,000 miles

“The wiring harness was replaced in my 2017 Kia Optima in 2019 at approximately 45,000 miles. Kia replaced my engine january 2020 because it was consuming large amounts of oil. I just got my car back in january 28, 2021 with a supposedly new engine. On march 3, 2021, my car caught fire while pulling out of my neighborhood actually driving down the street. Smoke and flames were coming out from underneath the hood the of the car. The entire front end of the car burned. Thankfully, the fire department got the fire out and no one was injured.”

NHTSA complaint #11399073, filed 2021-03, 74,200 miles

“While my significant other and I were driving down the highway our car began smoking from under the hood, then smoke began coming through the air vents inside the car; within seconds we seen flames coming out from under the hood and immediately evacuated the vehicle in heavy traffic with no where to pull over. Within minutes the entire car was engulfed in flames. There was no warning, our car was regularly maintained, there were no check engine lights or others displaying on the dash, no leaks or overheating to cause this.”

NHTSA complaint #11233869, filed 2019-07, 44,000 miles

“Bought on 9-12-2019 with approximately 15,400+ miles. It now has 15,750+ miles. It has stalled/powered off on me twice. First time was oct 7, 2019, parked on the curb when I was picking up my daughter from school, when she got in the car and I was about to drive off from the curbside and when I lifted my foot off the brake and stepped on the gas, the car wouldn't move. I realized the power off so I switched the ignition to off and turned it on again to start the engine again. I thought it was just a little glitch. It happened again on oct 26, 2019 when I was on the drive thru of taco bell. …”

NHTSA complaint #11302909, filed 2020-01, 15,450 miles

“The wiring in these cars are coated with something that small rodents like to eat they chew through the tape then then wiring. Causing hybrid engine not to work lites come. Luckly no fire yet. Dealer say sorry that will be $ the cars wiring hybrid part . Rodents like to eat it Kia has coating on it that attracts them then it costs you thousands of dollars to fix their problem cause it's not covered by them. Luckly the car did not caught on fire yet.”

NHTSA complaint #11395018, filed 2021-02, 24,000 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 2017 Kia Optima

Engine
165 complaints
Other or unknown
33 complaints
Fuel system
22 complaints
Transmission and drivetrain
21 complaints
Exterior lighting
15 complaints
Vehicle speed control
13 complaints
Steering
11 complaints
Engine cooling
8 complaints
Forward collision avoidance
8 complaints
Seat belts
8 complaints
Brakes
6 complaints
Air bags
5 complaints

← All problems reported for the 2017 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