TECHNICAL SERVICE BULLETIN: TRANSMISSION FLUID APPLICATION GUIDE - This bulletin has been revised to include additional information. New/revised sections of this bulletin are indicated by a black bar in the margin area. 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, and the transmission oil cooler is transferred to the new transmission.
full bulletin at NHTSA ↗2025 Kia Sportage powertrain problems
moderate 5 complaints filed with NHTSA · avg repair $2,500 · see powertrain across all vehicles →
When does it fail?
Of the 5 powertrain complaints filed for the 2025 Kia Sportage, here's the actual mileage breakdown — failures cluster heaviest at 0-25,000 mi.
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.
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.
Source: NHTSA manufacturer communications. Bring the bulletin number to your dealer or shop.
What owners are reporting 4 most recent
The contact owns a 2025 Kia Sportage. The contact stated that while attempting to start the vehicle, the engine experienced difficulty cranking. Additionally, the contact stated while driving at an undisclosed speed, the transmission failed to properly shift gear. The contact stated that the engine revved up, but the transmission failed to properly shift gear. The Auto START/STOP light was…
The contact owns a 2025 Kia Sportage. The contact stated that while driving at approximately 60 MPH, the transmission unexpectedly shifted gears, causing a slight jerk before accelerating. The instrument panel frequently displayed codes advising the driver to "Turn Off the Engine." While driving approximately 45-50 MPH, the vehicle suddenly stalled. The instrument panel displayed a message…
Started vehicle and was driving, ISG (auto start stop) light went amber and transmission refused to shift to allow uphill travel. Had to pull over and turn engine off and on again for the transmission to start working. Have had to dealer, however yet again they cannot replicate in their test drive so they can't do anything about it.
vehicle dash reset and cruise control was set. when dash came back up car surged nearly causing a wreck Reported to dealership and they could not replicate so not sure what to do as they can never replicate the issues and won't do anything to help
Common questions
How serious is the powertrain problem on the 2025 Kia Sportage?
It's a documented issue but not catastrophic. 5 complaints have been filed. Repairs average $2,500 and most owners catch it before it causes a breakdown.
At what mileage does the powertrain typically fail?
Based on the 5 complaints filed, powertrain issues most often appear around 10,750 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.