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Transmission and drivetrainPart report

2010 Kia Forte Transmission and drivetrain Problems

Complaints
23about this part
Share
10%of 221 total for the year
Median mileage
51,050miles
Trend
RisingComplaints filed in the last 3 full calendar years are at least 25% higher than in the 3 years before.

NHTSA recorded 23 complaints about the transmission and drivetrain of the 2010 Kia Forte, 10% of the 221 complaints for this model year. Where a mileage was given, the median is 51,050 miles.

Example complaints

Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.

“Our 2010 Kia Forte ex lost 90% of power repeatedly (rpms drop to idle, regardless of throttle position) at speeds from 0-35mph. This is not the first occurrence, but I think it is the same problem. This is very dangerous if you are making a left turn and you lose acceleration, you can be in the way of oncoming traffic by losing power. About 2 years ago (25,000 miles or so) the tps (throttle position sensor) went out. Kia could not diagnose it until it threw a code (lame). …”

NHTSA complaint #10549856, filed 2013-10, 47,100 miles

“Three times I've noticed this. I park the Kia in my drive at night and in the morning it has slipped 4 or 5 feet down the driveway. The drive is on a slope, but nothing extreme. The Kia has an automatic transmission.”

NHTSA complaint #10503318, filed 2013-03, 38,200 miles

“My 2010 Kia Forte ex sedan, 5 speed automatic has a transmission problem that could definitely lead to injuries or death. This is a recurring problem that can happen any time, but mostly occurs during or after going up a significant hill, but may happen on level ground. There's 23,000 miles on my Kia and it's under full warranty. I took this to the dealer, they could not find a problem or duplicate the problem; they suggested flushing the transmission for $150, so I did that. It did not help. …”

NHTSA complaint #10389799, filed 2011-03, 22,500 miles

“Upon parking my vehicle, I could not shift out of drive or neutral, resulting in an inability to put my car in park and remove my keys. As I was unable to do this, I could not leave my vehicle and feared it could roll from its parking spot. At this time, the rear brake lights were not coming on when I would press the brakes. Also, my ESC control lights came on indicating this function was no longer working. When talking with the dealership, I learned there is an identical problem with other models that has resulted in a recall. However, my Forte was not included in this recall. …”

NHTSA complaint #10512878, filed 2013-05, 26,000 miles

“I just bought a Kia Forte 5 speed manual transmission. So far when the car had 425 miles on it, the gas pedal has acted like it was depressed--the engine revved up very high, but my foot was not on the pedal. My daughter was also driving and it also happened to her, it felt as if the gas pedal was stuck. I checked to see if there was anything covering the pedal---maybe the rug or something but there was nothing there. I took it back to the dealer and they found nothing wrong with the computer diagnostics they ran and sent me home. …”

NHTSA complaint #10332606, filed 2010-05, 425 miles

Related service bulletins

Transmission and drivetrain: other model years

YearComplaintsShare of year
2024415%
2023812%
202227%
2021710%
20201621%
20194832%
201886%
2017124%
20161612%
2015176%
2014184%
2013105%
2012114%
20111812%
20102310%

Other parts of the 2010 Kia Forte

Engine
74 complaints
Air bags
41 complaints
Tires
23 complaints
Brakes
19 complaints
Electrical system
19 complaints
Wheels
17 complaints
Exterior lighting
15 complaints
Steering
11 complaints
Other or unknown
10 complaints
Fuel system
9 complaints
Seat belts
9 complaints
Vehicle speed control
9 complaints

← All problems reported for the 2010 Kia Forte

About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 31, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.

To check a specific vehicle for open recalls, use its VIN at nhtsa.gov/recalls. Methodology