When braking or not around 20 miles an hour car jerks forward. *tr
2010 Kia Optima powertrain problems
severe 24 complaints filed with NHTSA · avg repair $2,500 · see powertrain across all vehicles →
Failure mileage
Complaints
24
Recalls
0
Avg fix
$2,500
1crash
1injury
When does it fail?
Of the 24 powertrain complaints filed for the 2010 Kia Optima, here's the actual mileage breakdown — failures cluster heaviest at 50,000-75,000 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
Powertrain accounts for 32% of every owner complaint on file for this vehicle — the dominant problem area across 5 categories tracked.
Reported failure mileage clusters in the 50,000-75,000 mi band — 6 of 7 complaints with an odometer reading on file land there.
What owners are reporting 7 most recent
Hard jerk when downshift into first gear at 20-22 MPH. I am concerned that this could cause an accident on wet, icy or snow covered roads. When I asked the dealer about this problem, he said he had not heard of it. *tr
The car has a lurching issue when it slows down to 20mph when the car lurches with a hard down shift to 1st gear. This phenomena is especially acute when the car is cold or when you first start driving it.
While decelerating, either braking or coasting, the car will lurch violently when reaching approximately 22 MPH. The severity of the lurch varies but in most instances it is hard enough to snap my neck forward. *js
Takata recall transmission has a grinding and whining noise!! But transmission shift gear smoothly. These noise worse at cold condition and turn to the left, and passing over speedbump. As I heard in the south korea, this is common often reported by drivers who drive this vehicle. I am trying to figure out what is going on but all car mechanic could not found it. I am very scary when I…
The car lurches when down shifting from 18 to 20 miles an hour. Hard down shift at every stop. *tr
The car buckles when reducing your speed to around 20 MPH. Also the rear seat door lock stopped working and my car is no longer under warranty and Kia wants to charge me around 700 dollars to fix it. *tr
Had powertrain 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 powertrain problem on the 2010 Kia Optima?
It's a meaningful issue. 24 complaints have been filed and the failure mode causes operational problems for owners. Repairs average $2,500.
At what mileage does the powertrain typically fail?
Across the 20 complaints that reported odometer mileage, most powertrain failures cluster between 67,000 and 82,000 miles, with the median around 77,000. A quarter of owners report trouble before 67,000; a quarter make it past 82,000. 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 $2,500 for powertrain 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 powertrain?
No active recalls currently cover powertrain 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.