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Electrical systemPart report

2012 Kia Optima Electrical system Problems

Complaints
122about this part
Share
13%of 920 total for the year
Median mileage
79,000miles
Trend
StableComplaints filed in the last 3 full calendar years are within 25% of the 3 years before.

NHTSA recorded 122 complaints about the electrical system of the 2012 Kia Optima, 13% of the 920 complaints for this model year. Where a mileage was given, the median is 79,000 miles. 4 of these say a crash was involved and 18 a fire, according to the filers.

Example complaints

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

“I was parked in the parking lot at a grocery and folded my side view mirrors up and back down and now the motor in the passenger side view mirror will not stop running. The motor runs day and night and the mirror no longer folds like it's supposed to. I see that I am not the only one that has had the issue with the side view mirrors”

NHTSA complaint #11399491, filed 2021-03, 151,300 miles

“As I was driving with absolutely no warning at the time or prior to the car stopped accelerating completely and will not start back up. When plugged up yo cables lights and all indicators come on but the car never starts and there is no noise coming from the engine . I was just leaving my driveway on a regular side street proceeding foward at maybe 15mph”

NHTSA complaint #11185536, filed 2019-03, 80,600 miles

“Kia replaced my engine after it failed while driving. Now it hesitates and sometimes jerks like it's about to run out of gas. The skid light comes on even when it's dry. The break light pops on even when the vehicle isn't in use. There is a recall for fuel pipe damage after engine replacement but they won't acknowledge it or even inspect my vehicle know it can cause a fire”

NHTSA complaint #11361900, filed 2020-09, 160,200 miles

“My starter would not turn over to start my car after driving it. When I got to my destination I couldn't restart the car and there was smoke coming from under the hood. I had 2 starters put in thinking that was the issue and after the 2nd starter was installed the car still had smoke. The electrical wires were burnt and burning and the car still will not start.”

NHTSA complaint #11204285, filed 2019-04, 162,000 miles

“2012 Kia Optima ex with 48000 miles now driver-side headlight stopped working, so as of now I am driving with passenger sidelight in combination with parking lights. Buying Kia Optima is the biggest mistake I have ever done, it seems every month something goes wrong with this vehicle. Surprisingly NHTSA has not taken any action as per Kia Optima well known defects.”

NHTSA complaint #11277793, filed 2019-11, 48,000 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 2012 Kia Optima

Engine
398 complaintsSteering
188 complaintsBrakes
88 complaintsOther or unknown
88 complaintsFuel system
54 complaintsTransmission and drivetrain
54 complaintsAir bags
48 complaintsVehicle speed control
40 complaintsBody and structure
39 complaintsExterior lighting
31 complaintsVisibility (wipers, defrost, mirrors)
28 complaintsEngine cooling
20 complaints

← All problems reported for the 2012 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