TSB - USE OF AFTERMARKET USB CHARGING CABLES IN USB/12V PORTS - This article provides information regarding the use of USB ports and 12V power outlets to connect/charge mobile phones. Customers may experience issues with their head units that may be related to the use of aftermarket USB charging cables, including; * Electrical interference and limited or no functionality when attempting to play music, or when charging a device through the USB port * Excessive static or noise when listening to the audio source * Malfunctions and screen freeze of the head unit screen * Slow down of the system response while device is plugged in * Music will not play from iPhone 5 or 6 with Kia iPod cable and a
full bulletin at NHTSA ↗2010 Kia Optima electrical problems
moderate Owners of the 2010 Kia Optima have filed 13 NHTSA complaints about the electrical, typically surfacing around 75,000 miles at roughly $850 to repair (U.S. federal records, as of July 2026). Source: NHTSA Office of Defects Investigation. See electrical across all vehicles →
Failure mileage
Complaints
13
Recalls
0
Avg fix
$850
| Model year | electrical complaints |
|---|---|
| 2006 Optima | 19 |
| 2007 Optima | 9 |
| 2008 Optima | 12 |
| 2009 Optima | 13 |
| 2010 Optima (this page) | 13 |
| 2011 Optima | 56 |
| 2012 Optima | 95 |
| 2013 Optima | 130 |
| 2014 Optima | 50 |
When does it fail?
Of the 13 electrical complaints filed for the 2010 Kia Optima, here's the actual mileage breakdown — failures cluster heaviest at 25,000-50,000 mi.
0-25k
25-50k
50-75k
75-100k
100-125k
125-150k
150k+
Each bar shows the share of total complaints filed at that mileage range. Peak failure window highlighted. Some owners report problems earlier; some make it well past 150,000 miles symptom-free. Maintenance habits and driving conditions shift the curve as much as mileage alone.
What stands out
No new NHTSA electrical complaint has been filed on this vehicle in over 9 years — the issue may be aging out of the active population.
Is there a fix? Manufacturer service bulletins
The manufacturer has issued service bulletins covering electrical on this vehicle — documented repair instructions, service campaigns, or warranty extensions sent to dealers. A TSB isn't a recall (it's not a free safety remedy), but it's the manufacturer acknowledging the issue and how to fix it.
TSB: KDS - AUDIO UPDATE MODULE (AUM) - THE GDS AUDIO UPDATE MODULE (AUM) WAS INTRODUCED IN FOURTH QUARTER OF 2013. THIS SPECIAL SERVICE TOOL (SST) WAS DEVELOPED TO IMPROVE THE EFFICIENCY AND EFFECTIVENESS OF UPDATING 2010MY, AND LATER, KIA AUDIO HEAD UNITS USING A GDS, AND NOW, THE SAME FUNCTIONALITY IS AVAILABLE ON KDS. SOME TECHNICIANS MAY NOT BE AWARE OF THE BENEFITS THE AUM TOOL HAS TO OFFER. THE AUM ELIMINATES THE NEED FOR MULTIPLE USB FLASH DRIVES FOR SPECIFIC VEHICLE MODELS AND APPLICATIONS WHICH, IF MISAPPLIED, MAY RESULT IN AN IMPROPER AUDIO SYSTEM SOFTWARE UPDATE AND/OR LOCKED UP HEAD UNIT. ADDITIONALLY, FIELD REPORTS HAVE INDICATED THAT USB DRIVES FOR AUDIO UPDATES ARE EASILY LOST
full bulletin at NHTSA ↗PITSTOP: STOP LAMP SWITCH IDENTIFICATION MATRIX (SC098) - KMA HAS RECEIVED A NUMBER OF INCORRECT WARRANTY RETURN PARTS RELATED TO CAMPAIGN SC098 AND HAS DETERMINED THAT AT TIMES DEALER STAFF MAY HAVE DIFFICULTY IN QUICKLY AND EASILY IDENTIFYING THE CORRECT SWITCHES WHILE ORDERING PARTS, PREPARING TO PERFORM THE STOP LAMP REPLACEMENT OR WHILE PREPARING TO RETURN REPLACED SWITCHES TO KMA (IN CASE OF AN EXISTING MANDATORY PART RETURN (MPR) REQUEST). TO FACILITATE FASTER AND EASIER IDENTIFICATION OF THE CORRECT PARTS, A PICTURE GUIDE AS SHOWN ON PAGE 2 IS PROVIDED. THE GUIDES CONTENT WAS PURPOSELY FORMATTED TO FIT ON ONE PAGE SO IT CAN BE EASILY PRINTED AND KEPT ON OR NEAR A WORKSTATION, PARTS
full bulletin at NHTSA ↗KIA: PROVIDES INFORMATION RELATED TO THE ECM SOFTWARE UPGRADE OF SOME VEHICLES WITH 3.8L AND 2.7L ENGINES WHICH MAY EXPERIENCE A MALFUNCTION INDICATOR LAMP ILLUMINATED WITH THE PCM (POWERTRAIN CONTROL MODULE) SYSTEM RELATED DTC(S).
full bulletin at NHTSA ↗Source: NHTSA manufacturer communications. Bring the bulletin number to your dealer or shop.
The failure pattern owners describe
The 2010 Optima electrical cluster reveals consistent failures in power door locks, affecting multiple vehicles at mileages between 45,000 and 81,400 miles. Door locks fail to respond to key fob commands, interior switches, or both, sometimes trapping occupants. Failures are intermittent and temperature-dependent—one owner reports locks failing in hot weather but working in cooler temperatures. Different doors fail at different times, and independent mechanics and dealers have struggled to diagnose root causes.
Additional electrical faults include TPMS, airbag, ABS, and brake warning lights that cycle on and off over days or weeks despite no actual system faults. One dealer quoted $1000+ for airbag replacement without warranty coverage. Owners also report parasitic battery drains from parking lights staying on after engine shutdown, causing repeated dead batteries. Other failures include an engine that stalls at highway speeds without warning, a shifter cable plastic clip that breaks (preventing gear engagement), an ignition that requires multiple turns to fully shut off, and a trunk that unlatches itself while parked. No technical service bulletins or recalls are mentioned in the narratives, and diagnostic trouble codes rarely appear despite the problems persisting.
Same Kia Optima electrical reports on nearby years: 2008 · 2009 · 2011 · 2012 · 2013
Failure modes owners describe
Power Door Lock Failure
Multiple doors fail to lock or unlock via key fob, interior switches, or manual operation. Failures are intermittent and often affect different doors at different times. Some owners report the problem is temperature-dependent, worsening in hot weather. One owner reports being unable to exit the vehicle due to lock failure.
When: 45,000 to 81,400 miles; some reports indicate onset after several years of ownership
Symptoms owners cite: Key fob does not lock/unlock doors; Interior power lock switches do not function; Individual doors fail to lock or unlock while others work; Intermittent failures that worsen over time; Temperature-dependent behavior (worse in heat)
Repairs/costs cited: Owners report manual operation as workaround; independent mechanic unable to locate root cause in one case
Shift Lever Cable Plastic Clip Breakage
Plastic clip on cable connecting shifter assembly fails, preventing engagement into any gear, including Park. Owner notes earlier Kias had a recall for this same issue. Replacement part had to be special-ordered and installation required vehicle towing.
When: Unknown mileage; occurred while attempting to park in driveway
Symptoms owners cite: Shifter will not engage in any gear; Cannot shift into Park; Shifter locked in current position
Repairs/costs cited: Plastic clip connected to cable broke; had to be special-ordered and replaced
Recalls/TSBs owners mention: Earlier Kias subject to recall for same issue; current vehicle has not been recalled
Engine Stall During Operation
Engine cuts off abruptly while driving at highway speeds without warning lights or fuel shortage. Vehicle restarts immediately without diagnostic trouble codes. No errors appear on computer diagnostics after the incident.
When: Unknown mileage; multiple occurrences
Symptoms owners cite: Sudden engine shutdown at 65 mph in traffic; No warning lights prior to stall; Engine restarts without error; No fault codes present after diagnosis
Dashboard Warning Lights Malfunction
Multiple warning lights (TPMS, airbag, ABS, brake system) illuminate intermittently without corresponding system failures. Lights cycle on and off over days or weeks. One dealer diagnosed need for airbag replacement but did not perform repair; another dealer cited $1000+ part cost and no warranty coverage.
When: 45,000 to 81,400 miles
Symptoms owners cite: TPMS light cycles on and off; Airbag light cycles on and off; ABS light cycles on and off; Brake system light cycles on and off; No actual system faults detected
Repairs/costs cited: Dealer reset did not resolve; another dealer quoted $1000+ for airbag replacement without warranty coverage
Brake Jerking and ABS Malfunction
Vehicle jerks violently forward under light braking force, regardless of speed. Occurs even at 5 mph with gentle pedal pressure. Associated with ABS light cycling on and off, suggesting potential ABS system electrical fault.
When: 45,000 miles
Symptoms owners cite: Severe forward jerking during braking; Occurs at all speeds, including very slow (5 mph); ABS light cycles on and off; Unpredictable behavior
Ignition Switch Failure
Ignition key will not turn completely off on first attempt. Requires 2 to 3 full rotations before the ignition fully shuts down, preventing remote door locking.
When: Unknown mileage
Symptoms owners cite: Ignition does not turn fully off on first attempt; Requires multiple full rotations to shut down completely; Cannot remotely lock doors until ignition fully off
Parasitic Electrical Drain
Vehicle battery drains excessively due to lights remaining on after engine shutdown and parking. Parking lights and possibly other lights remain energized even when vehicle is parked and operator has exited. Has resulted in multiple dead batteries.
When: Unknown mileage; reported incidents in 2015-2016 timeframe
Symptoms owners cite: Parking lights remain on after car is parked; Lights stay on for extended periods (hours); Multiple dead battery occurrences; Battery drain occurs without operator action
Trunk Latch Failure
Trunk lid unlatches itself without operator action, as indicated by dashboard display. Vehicle was parked and unattended when failure occurred.
When: Unknown mileage; single occurrence reported
Symptoms owners cite: Trunk latch disengages on its own; Trunk shows as unlatched on dashboard; Occurs while vehicle is parked
Synthesized from 13 NHTSA owner complaints — unverified consumer allegations, summarized for patterns. The verbatim filings appear below.
What owners are reporting 4 most recent
Air bag lights will not go off dealer reset but came back on soon afterwards. Another dealer said it was not covered under warranty and part was over $1000. Multiple dead car batteries due to running lights not turning off after you park the car. Please for the love of everything good in this world just recall and fix already.
We have been having electrical issues with our 2010 Kia optima, which currently has 45000 miles on it. The TPMS, (!) and the airbag "off/on" lights all go off and on continually. They will be on for a few days, then go off and stay off for an undetermined amount of time. The brakes also jerk our car very roughly forward when we are braking. Even if we are going 5 MPH, we press on the brakes, then…
Our vehicle started only unlocking the 3 passenger side doors, when using the keyfob to unlock. The drivers door will stay locked and you have to manually unlock vehicle with key. Now 2 of our other doors(both rear) dont unlock. All the doors do not lock with the keyfob and when we push the lock button inside the vehicle. We have to manually lock/unlock the doors, which is a pain in the butt when…
The electrical door lock do not work most of the time.I have to open the door with the key sometime.the car is stationary. This start in may 2016 and continue.
Had electrical trouble with your 2010 Kia Optima?
File a complaint with NHTSA → It's free, official, and how every report above got here — owner filings are the federal safety record this page is built on.
Common questions
How serious is the electrical problem on the 2010 Kia Optima?
It's a documented issue but not catastrophic. 13 complaints have been filed. Repairs average $850 and most owners catch it before it causes a breakdown.
At what mileage does the electrical typically fail?
Across the 10 complaints that reported odometer mileage, most electrical failures cluster between 40,000 and 80,000 miles, with the median around 75,000. A quarter of owners report trouble before 40,000; a quarter make it past 80,000. Maintenance history matters more than the odometer alone — this is the reported failure window, not a guarantee.
What does it cost to fix?
Independent shops typically charge around $850 for electrical repairs on this vehicle. Dealer pricing tends to run 20-40% higher. The exact figure depends on the specific failure mode, parts availability, and your local labor rates. If you're outside factory warranty, an extended service contract often covers this category.
Are there any recalls related to electrical?
No active recalls currently cover electrical issues on this vehicle. The complaints filed represent owner-reported failures that haven't risen to the level of a manufacturer-issued recall — but they're still worth knowing about before you buy or budget for repairs.
Related
Complaint and recall data sourced from the National Highway Traffic Safety Administration (NHTSA)
public records database. Verify the raw federal record at
nhtsa.gov/vehicle/2010/Kia/Optima.
Severity ratings are derived from reported crashes, fires, injuries, and fatalities. Repair cost estimates are
independent-shop national averages and may differ in your area. Some links on this page are affiliate links.