My 2021 Kia Soul Turbo with the 7-speed dual clutch transmission (DCT) has an ongoing transmission failure. It has difficulty reversing and accelerating, and the check engine light is on. This creates a safety risk when pulling into traffic or backing up. In September 2026, Westside Kia (Katy, TX) did not identify the root cause and offered only non-warranty repairs, which I paid for and which did not fix the problem. On [XXX], Joe Myers Kia (Houston, TX) diagnosed a failed transmission shift actuator (part #43810-2D205) and quoted $2,777.39. I am the original owner at about 76,500 miles, within Kia's 10-year/100,000-mile powertrain warranty. Kia denied coverage, saying the actuator falls under the expired basic warranty (Kia case #[XXX]). Kia has previously issued Service Action SA396 (DCT replacement on 2019-2020 Soul for harsh shifting and transmission-related check engine lights), TSB TRA083 (7-speed DCT judder), and TSB TRA085 (DCT actuator rod adjustment), indicating known problems with this transmission. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)
2021 Kia Soul: complete transmission failure
8 of the 245 complaints about the 2021 Kia Soul describe complete transmission failure.
- owner complaints
- 8
- of this car's complaints
- 3%
- recalls
- 0
Complete transmission failure by model year
- 20241
- 20222
- 20218
- 202039
- 20191
- 20183
- 20162
- 20151
- 20131
- 20121
- 20101
What owners say
The contact owns a 2021 Kia Soul. The contact stated that while driving approximately 80 MPH, the vehicle unexpectedly stalled, with the check engine warning light illuminated. The vehicle was restarted; however, the failure reoccurred. The contact stated that while driving uphill, the vehicle failed to accelerate as needed. The vehicle was taken to the dealer, where it was diagnosed with transmission failure. The contact was informed that the transmission needed to be replaced. The vehicle was not repaired. The manufacturer was made aware of the failure and case was opened. The approximate failure mileage was 41,000. The VIN was not available.
In November 2024, I was having issues with oil consumption and my car stalling while driving. I took it into Bob Sight Kia and explained that I'm constantly having to change or add oil to my car. They ran diagnostics and "fixed" the issue without any requests of maintenance records. The very next day after I picked it up, my oil light came on. I changed my oil November 2024, January 2025, March 2025, April 2025, May 2025. On May 10, 2025, while driving back from a family emergency, my transmission went out. I had it towed to Bob Sight Kia and was told the transmission would need replaced and it is under warranty, they did not request maintenance records then either. The transimission was replaced and I picked up my vehicle on June 5, 2025. My car started stalling again July 2025 and August 2025, I changed the oil each time. I took it back to Bob Sight Kia and was told I needed to provide maintenance records this time. I provided receipts of the above dates I changed my oil but was told my claim is being denied due to not having maintenance records from 2022 and 2023. I have called Kia Consumer Affairs and Bob Sight Kia. The general manager at Bob Sight Kia told me my car had been misdiagnosed in November 2024. I have explained to Kia Consumer Affairs exactly what I have been told by the dealership but they still refuse to replace the engine. My car currently has 73k miles and I am having to change my oil every 1500 miles. I believe my vehicle is under the engine recall and Kia will not honor it
The contact owns a 2021 Kia Soul. The contact stated that the vehicle experienced a transmission failure, and the transmission was replaced by the dealer. The contact stated that the dealer also replaced the rack and pinion due to an abnormal clunking sound coming from the steering wheel. Additionally, the contact stated that the vehicle was experiencing abnormal oil consumption. The vehicle was taken to the dealer, where an oil consumption test was performed. The contact returned to the dealer after driving for 1,000 miles on three occasions. The dealer determined that the vehicle was not experiencing excessive oil consumption. The dealer replaced the motor mounts. The contact related the abnormal oil consumption to the federal safety agency Campaign Number: 21V259000 (Engine), which was previously performed on the vehicle. The vehicle was not repaired. The manufacturer was not notified of the failure. The failure mileage was approximately 4,815.
My vehicle at three months had transmission failure like many 2021 Kia souls after the repair I began to experience, mini electrical issues and steering issues which are very common for this model year. Most recently I have taken it in for electrical issues. My rear brake lights are not working the fuses burn and the wiring has burned. in addition, there is a bulletin that Kia put out to their dealers asking to repair suspension and steering problems on hundreds of thousands of vehicles but this is not a recall yet my vehicle experience the same symptoms and my vehicle was not repaired siding I was too close to the end of my warranty please see the last page the Kia bulletin regarding popping in the steering the dealer installed parts at purchase of the vehicle in 2021 and please see the brake light repairs Kia motors forced me to sign a disclaimer when the when the transmission went out siding, I would never complain about the vehicle. After submitting a case to the department of Justice in California, Kia instantly reopened my case. The wiring repairs were recorded on my invoices as #Warranty repairs, but when I call Kia motors themselves, they do not show any warranty repairs performed on my vehicle. I don’t understand why they are hiding this information. Again, please see the Kia bulletin in my attachments they did not repair my vehicle based on the bulletin.
I was on the freeway, and the car was shuddering a bit before I lost the ability to accelerate. It would rev but no power to the wheels. Had to pull over and get towed to the dealer. I think it may be a transmission failure.
I bought my 2021 Kia Soul on 10/21/20. Then on 11/11/20 my car started having transmission issues within less than one month of ownership & nearly 1000 miles on it. The transmission was replaced in late Nov./early Dec. of 2020. On 12/15/22, My Soul started revving up & the RPM needle was bouncing while driving, but the car would not go any faster when I pressed the gas pedal. I realized, I was having transmission issues with my 2021 Kia Soul, AGAIN. The car has less than 37,500 miles on it. I contacted Power Kia of Salem Oregon that day & the first appointment that I could get was on 12/29/22. I had the car towed to Power Kia on 12/27/22, then received a voicemail & text msg. from Power Kia on 12/28/22 that they will diagnose the issue. That was the last time that I got any information about my car without me contacting them. It has been OVER THREE MONTHS & Power Kia STILL has my vehicle & has not bothered to contact me with updates unless initiated by me. They have not provided any assistance for transpiration during this difficulty, even though that I told them multiple times, that I commute 80 miles daily. I bought a brand-new car to have reliable transportation to & from work, only to have to replace the transmission TWICE & be without my vehicle for nearly four months. The complete disregard of my safety by Power Kia when driving a car with a faulty transmission is reprehensible. I have developed anxiety issues, have had sleepless nights, and now have panic attacks just at the thought of dealing with this matter.
I I was on the interstate and my car started making a loud noise and decelerated. It seemed to lose power, I turned around and started home as I was very frightened. The car accelerated without pressing the gas, decelerated without pressing the brake. The tachometer was swinging around wildly. The car most of the time seemed to have no power. I was afraid of a rear end hit by another car or flyling into the back of the car in front. I was trying to limp it in to the dealer. The car only had 3400 miles on it and I had had it for 7 months. At one point I had to stop for a red light and the car would not move. I put on the warning flashers and tired to edge to the side of the street as there was a bit of slope. I turned the car off and restarted it and was able to get it to the dealer about 2 miles away with very little power. They told me it has to have a new transmission. They said they are replacing the transmission with a different kind and it will be safe not to worry, though confidence in the vehicle is diminished. I understand that the ivt transmission that kia developed in 2020 has been giving problems.
Service bulletins that may apply
- Voluntary emissions service campaign: owner renotification (SC199 FL301)
- Transmission fluid application guide
- Precautions for transmissions with isg/eop
- Ivt oil pressure sensor replacement
- This bulletin provides information relating to the correct transmission fluid type and fill quantity...
- Voluntary emissions service campaign: ivt software logic improvement and/or ivt replacement (SC199)
- Ivt software logic improvement and/or ivt replacement
- Transmission fluid application guide
Related recalls
No recalls on record for this model year.
Questions about the 2021 Kia Soul transmission failure
Is complete transmission failure a common problem on the 2021 Kia Soul?
8 of 245 owner complaints about the 2021 Kia Soul (3%) mention complete transmission failure. The model year with the most reports is 2020.
Is there a recall or service bulletin for this on the 2021 Kia Soul?
There are 0 recalls and 20 service bulletins for the same area of the car. Check them below with your VIN.
Other symptoms on the 2021 Kia Soul
Stalling 82Check engine light 59Engine failure 57Oil consumption 48Loss of power 26Knocking 20Misfire 9Fire or smoke 6Headlights 6Overheating 6Shudder 5
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