2012 KIA Optima Electrical System Problems

Source: NHTSA · Updated Oct 9, 2026 · 122 complaints analyzed

Owners have filed 122 complaints with NHTSA about electrical system problems on the 2012 KIA Optima, 13% of all complaints for this model year. Half of the reports with a mileage happened before 79,000 miles.

At what mileage do electrical system problems happen?

Based on 73 complaints that reported the odometer reading.

Under 10k miles9 · 12%
10k–25k miles4 · 5%
25k–50k miles9 · 12%
50k–75k miles10 · 14%
75k–100k miles18 · 25%
100k–150k miles16 · 22%
150k+ miles7 · 10%

How serious are the reports?

Of 122 complaints, 4 mention a crash, 18 a fire, 3 an injury.

KIA Optima electrical system complaints by model year

Peak: 2013, with 146 complaints
2001: 172001172002: 14142003: 252003252004: 45452005: 292005292006: 23232007: 142007142008: 15152009: 162009162010: 13132011: 632011632012: 1221222013: 14620131462014: 60602015: 13520151352016: 1041042017: 252017252018: 33332019: 232019232020: 1414

n = 936 complaints · Source: NHTSA

Model yearElectrical System complaintsShare of that yearMedian miles
2020 Optima149%—
2019 Optima2311%18,000
2018 Optima3314%39,463
2017 Optima2510%24,000
2016 Optima10414%66,500
2015 Optima13513%81,250
2014 Optima6010%71,500
2013 Optima14611%86,900
2012 Optima12213%79,000
2011 Optima6311%85,650
2010 Optima1317%75,000
2009 Optima1614%66,500
2008 Optima1510%97,000
2007 Optima148%89,500
2006 Optima2315%65,150
2005 Optima2920%99,000
2004 Optima4520%85,000
2003 Optima2518%78,769
2002 Optima1413%72,000
2001 Optima1712%9,500

When owners reported it

Peak: 2019, with 19 complaints
2012: 5201252013: 222014: 5201452015: 332016: 8201682017: 13132018: 8201882019: 19192020: 6202062021: 14142022: 5202252023: 14142024: 7202472025: 10102026: 320263

n = 122 complaints · Source: NHTSA

Related recalls (0)

No safety recall lists electrical system for the 2012 KIA Optima. A pattern of complaints does not always lead to a recall.

What owners report

Short excerpts of recent complaints, with personal details removed. Full reports are on NHTSA.gov.

The horn stops working, steering heat stop working, control functions and air bag warning. I changed the clock spring and it fixed all those issues the first time but within 6 months all those issues happened again. Is there something more wrong?

Received May 7, 2026 · NHTSA complaint 11736227

A issue with the Valve cover gasket leaking into the engine causing a misfire. Making the car suddenly stop while driving which is very unsafe. I took the car to the dealership and they want to charge me for the repairs. I have 2 kia optima hybrid and both cars have the same issue around the same…

Received Apr 30, 2026 · NHTSA complaint 11734769

Unknown but We were driving home from friant in motion when the car died and started smoking, no indication light were on before until after the incident all warning lights were on dash. Our lives were put at risk due to this. We were not able to control steering wheel or to get out of the way of…

Received Feb 27, 2026 · NHTSA complaint 11720852

Frequently asked questions

Do all 2012 KIA Optimas have electrical system problems?

No. NHTSA has 122 owner complaints about electrical system for the 2012 KIA Optima (13% of the 920 complaints for this model year). Complaint data shows that the problem is reported, not how many of all cars sold are affected.

Was there a recall on the 2012 KIA Optima electrical system?

No recall currently lists electrical system for this vehicle.

At what mileage do electrical system problems start?

The median reported mileage is 79,000 miles: half of the reports with a mileage came before that.

Other 2012 KIA Optima problems

See all 2012 KIA Optima problems or electrical system problems across all Optima years.