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 ↗2014 Kia Rio powertrain problems
severe 6 complaints filed with NHTSA · avg repair $2,500 · see powertrain across all vehicles →
Complaints
6
Recalls
0
Avg fix
$2,500
1crash
1fire
2injuries
When does it fail?
Of the 6 powertrain complaints filed for the 2014 Kia Rio, 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
Of the 4 model years of Kia Rio we track for powertrain problems, this one carries the most owner complaints on file — 6.
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.
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.
full bulletin at NHTSA ↗TECHNICAL SERVICE BULLETIN: TRANSMISSION FLUID APPLICATION GUIDE - 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 in the chart starting on page 2.
full bulletin at NHTSA ↗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 ↗TSB: 6-SPD. A/T ADAPTIVE VALUE RESET /RELEARN - THIS BULLETIN PROVIDES THE PROCEDURES NECESSARY TO RESET AND RELEARN THE ADAPTIVE VALUES AFTER TRANSMISSION REPLACEMENT OR REPROGRAMMING/REPLACEMENT OF THE PCM/TCM. AFTER THE ADAPTIVE VALUES ARE RESET, THE TRANSMISSION COMPUTER ADAPTIVE VALUES MUST BE RELEARNED BY DRIVING IN A PRECISE MANNER TO TEACH THE COMPUTER THE PROPER SOLENOID DUTY AND LINE PRESSURE FOR THE NEW TRANSMISSION/COMPUTER COMBINATION.
full bulletin at NHTSA ↗Source: NHTSA manufacturer communications. Bring the bulletin number to your dealer or shop.
What owners are reporting 4 most recent
Presento iluminacion del mal funcionamiento indicador lampara (MIL),ABS precaucion light,burning/melting small,and smoke from the engine compartment,engine with noise and broken estoocurrio el 03/08/2023, no tenia la informacion del problema y mande a reparar el motor $ 3,890.00.necesitoque ustedes me ayuden por este pago. I present lighting of the malfunctioning lamp indicator (MIL), ABS…
This is now my second complaint regarding my 2014 Kia rio, for the same issue, happening within a span of two weeks. The first incident occurred on thur, 10/29/15. This second incident occurred on monday, 11/08/15. Once again, my car, while it was running and in park, slipped out of gear and into drive. This time, I was out of the vehicle for up to 4 minutes (inside of a disabled customers house,…
I am a food delivery driver. I was making a delivery to a regular customer. I was outside his side door, talking. I was out of my 2014 Kia rio for approximately 1 and 1/2 to 2 minutes, talking with the customer. Suddenly, I am on the ground. I look to see a tires run over my foot. The customer chased after the car, it crashed intoo his parked car. That's when I noticed it was my car that ran me…
Tl* the contact owns a 2014 Kia rio. While driving 65 MPH, the vehicle failed to accelerate when the accelerator pedal was depressed and an unknown warning light illuminated for a month. The vehicle was not diagnosed or repaired. The manufacturer was not notified of the failure. The VIN was invalid. The failure mileage was 14,150.
Had powertrain trouble with your 2014 Kia Rio?
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 2014 Kia Rio?
It's a meaningful issue. 6 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 6 complaints filed, powertrain issues most often appear around 24,463 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/2014/Kia/Rio.
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.