TECHNICAL SERVICE BULLETIN: - TRANSMISSION FLUID APPLICATION GUIDE - This bulletin has been revised to include additional information. This bulletin provides information relating to the correct transmission fluid type and fill quantity requirement for each Kia model. A flush is required ONLY when a transmission is replaced, refer to applicable vehicles on page 2. Refer to the shop manual on KGIS for the specific Kia model for the correct transmission fluid check/fill procedures.
full bulletin at NHTSA ↗2010 Kia Sedona powertrain problems
severe Owners of the 2010 Kia Sedona have filed 3 NHTSA complaints about the powertrain at roughly $2,500 to repair (U.S. federal records, as of August 2026). Source: NHTSA Office of Defects Investigation. See powertrain across all vehicles →
Complaints
3
Recalls
0
Avg fix
$2,500
| Model year | powertrain complaints |
|---|---|
| 2006 Sedona | 16 |
| 2007 Sedona | 8 |
| 2008 Sedona | 4 |
| 2010 Sedona (this page) | 3 |
| 2012 Sedona | 6 |
1crash
When does it fail?
Of the 3 powertrain complaints filed for the 2010 Kia Sedona, 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 powertrain complaint has been filed on this vehicle in over 13 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 powertrain 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: AUTOMATIC TRANSMISSION FLUID APPLICATION GUIDE - THIS BULLETIN PROVIDES INFORMATION RELATING TO THE CORRECT AUTOMATIC TRANSMISSION FLUIDS THAT ARE REQUIRED FOR EACH KIA MODEL. REFER TO THE SHOP MANUAL ON KGIS FOR THE SPECIFIC KIA MODEL, THEN REFERENCE THE AUTOMATIC TRANSAXLE SYSTEM/ REPAIR PROCEDURES/ INSPECTION AND ADJUSTMENT SECTION FOR THE CORRECT ATF CHECK/FILL PROCEDURES.
full bulletin at NHTSA ↗TSB: 6-SPEED AUTOMATIC TRANSAXLE INHIBITOR SWITCH BRACKET INSTALLATION - THIS BULLETIN PROVIDES INFORMATION RELATING TO SOME SPORTAGE AND SEDONA VEHICLES, PRODUCED FROM APRIL 01, 2009 TO SEPTEMBER 16, 2011, WHICH MAY EXPERIENCE A NO-START CONDITION, UNEVEN ENGAGEMENT WHEN SHIFTING GEARS AND/OR P0705 STORED IN THE POWER-TRAIN CONTROL MODULE (PCM). TO CORRECT THIS CONCERN, INSTALL THE INHIBITOR SWITCH BRACKET ON THE INHIBITOR SWITCH BY FOLLOWING THE SERVICE PROCEDURE OUTLINED BELOW.
full bulletin at NHTSA ↗Source: NHTSA manufacturer communications. Bring the bulletin number to your dealer or shop.
What owners are reporting 1 most recent
Was on highway heading into construction zone , tapped brakes to disengage cruise control, cc did not disengage. Heavily pressed brakes, cc would not disengage. Vehicle is actually accelerating every time I step on brake. ABS/ESC lights come on. Ultimately able to disengage cc on the column but not before accelerating to 80+MPH heading into wall of traffic merging from three to one lanes and…
Had powertrain trouble with your 2010 Kia Sedona?
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 Sedona?
It's a meaningful issue. 3 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?
Based on the 3 complaints filed, powertrain issues most often appear around 26,750 miles. Some report problems earlier; some make it well past 150,000 with no symptoms. Maintenance habits matter — vehicles that received timely fluid services and were not regularly overworked tend to last longer.
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/Sedona.
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.