2018 Kia Sportage transmission problems

Filed Aug 16, 2026 · Engine, Transmission · PA

Purchased my Kia on the XXX then on the XXX, My engine light came on and my car went into Safety Mode . I at once took it to Auto Zone and their test came back with P1326 Knock signal range / performance. I then looked it up and found that a recall was put out quite a while back called an [XXX] # took my car to Kia Dealership in [XXX]. They said I could bring it in that was on the XXX and if an appointment came open they would check but they did not have an opening til the 14th which was today and I was told it would be next week . Could someone please send me updated information concerning the 2018 Kia Sportage and the Knock Sensor [XXX] [XXX] [XXX] [XXX] [XXX] [XXX] [XXX] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Filed Jun 4, 2026 · Engine, Fuel system · WI

I received a voluntary emissions update letter from kia, and although it was voluntary, the letter said failure to update could be considered lack of maintenance. The update was performed on XXX at Dorsch Ford/Kia in [XXX]. The vehicle ran poorly from that day forward. I gave it a couple of weeks to insure that the system could learn my driving habits. I then went to the Dorsch service department to report my issues. The service writer {Andy} said he hadn't heard of any issues with the update. I had him log in my issues to have a record that I complained. I returned several more times and talked to other service writers who told me that if they would check the vehicle and found nothing that I would have to pay service fees. the vehicle jerks and up/downshifts frequently and almost stalls sometimes when accelerating from a stoplight. It will lung periodically when navigating a parking lot at low speeds. It frequently searches for a different gear in traffic. To be clear, my car ran perfectly before this update. I asked them to put the previous tune back into the car but they said they can't do that. The car runs fine sometimes but the uncertainty of the jerking and shifting at improper times makes it dangerous to drive. Also almost stalling at an intersection is very dangerous too. I doubt that I am the only one to have this problem. Please help in any way you can to get this fixed without me having to spend money to correct a factory/dealer initiated problem Thank you for all your help. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Filed Sep 4, 2025 · Engine, Transmission · OK

I started my car and it started shaking violently, and would jolt back and forth, I would be on the highway and the speed would decrease rapidly and overheat slightly to pick up speed

Filed Jun 15, 2025 · Transmission · FL

I was riding on the highway at about 65 mph and then the check engine light came on, the car slowed down and lost power. Now when I take off I have to barely mash the gas to pick up speed, if I mash the gas pedal hard it barely moves and it loses speed and power going up a hill. I took the car to two different part store and had a reader hooked up and it said the power powertrain control module needs a reprogramming.

Filed Mar 26, 2025 · Electrical, Engine · NY

The contact owned a 2018 Kia Sportage. The contact stated while driving at an undisclosed speed, the transmission unexpectedly downshifted into first gear. While attempting to accelerate, the vehicle jerked and briefly lost motive power before slamming into gear. No warning light was illuminated. The contact stated that an abnormal burning odor was coming from under the hood and entered the vehicle through the A/C vents. The vehicle was taken to an independent mechanic; however, no cause for the failure was found. The thermostat and the electric switch on the driver’s side window were replaced. The contact stated that while driving uphill or going downhill, the RPM fluctuated, and the engine revved abnormally. The contact stated that the failure persisted. The manufacturer was not notified of the failure. The failure mileage was unknown.

Filed Mar 28, 2024 · Engine, Fuel system · ME

I bought a vehicle from a dealership in 2021. The dealership sold me a 2018 Kia Sportage. To their knowledge, they state they were unaware of any safety recalls. However, fast-forward to [XXX]. As I was entering a busy street (with my two young children in the car (both under the age of 5) and going up a hill, the oil light flashed once and then stayed on, I noticed the vehicle decelerating, as I tried to pull over, making way for vehicles to go around, all three (oil, battery and check engine) lights appear in my dashboard. After one failed attempt of restarting vehicle, I knew I needed to call a tow truck. Thankfully my mom wasn't too long to execute the rescue (it was about 32 outside). The vehicle was towed to the dealership I had purchased it from (NOT a certified Kia dealership mind you). I was told later on that day, that it was a good possibility my engine has blown. I was told the service technician had put over 3.5 qtrs. in order for it to register on the dipstick. I was also told they could replace said engine for a whopping $10,000. Which, the vehicle is only worth $2,000 more than the cost of the motor replacement. I decided to have the vehicle towed to a certified Kia dealership. Where, alas, the engine was in fact, blown. However, per the service manager, the blown engine was due to a recall (XXX) which was in effect as of 1/19/19 (before I bought said vehicle). Per the service manager a vehicle should not be sold with an active safety recall. I then relayed that information to the gentleman who said the vehicle and was told it was illegal for them to work on a vehicle that they are not certified to service (although I had the option for them to replace the engine). I then begin the battle of who is responsible. And ultimately told by the manager of dealership, 70% of the used vehicles they sell have active safety recalls that they do not fix. Nor do they send them to be serviced and checked by the appropriate personnel. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U

Filed May 22, 2023 · Engine, Transmission · 46,300 miles · MA

The contact owns a 2018 Kia Sportage. The contact stated that while driving at an undisclosed speed, the vehicle stalled and was unable to accelerate above 20 MPH. The contact stated that the vehicle lost motive power with the check engine warning light illuminated. The vehicle was towed to a local dealer, where it was diagnosed that unknown engine repairs were needed. The repairs were completed; however, the mechanic then diagnosed that the driveshaft needed to be replaced. The contact was informed that the warranty had expired. The vehicle remained at the dealer awaiting the repair. The manufacturer was made aware of the failure. The approximate failure mileage was 46,300. The VIN was not available.

Filed Apr 23, 2023 · Body, Engine · CA

My 2018 kia Sportage got stolen and never received a letter from kia to prevent this from happening knowingly kias of this year and model were being stolen and mine got stolen March 23, 2023 is there any help for me ?

Filed Jan 9, 2023 · Transmission · 37,000 miles · FL

The contact owns a 2018 Kia Sportage. The contact stated that while driving at various speeds, the engine revved loudly, and the RPM was fluctuating. The contact also stated that after shifting into reverse(R), the vehicle was losing motive power. The contact shifted back into park(P) to restart the vehicle. No warning lights were illuminated. The vehicle was taken to an independent mechanic however, the failure could not be duplicated. The contact stated that the vehicle was taken to a local dealer for an unknown recall repair and the mechanic was made aware of the failure; however, the failure could not be duplicated. The vehicle was not repaired. The manufacturer was made aware of the failure. The approximate failure mileage was 37,000.

Filed Oct 8, 2022 · Transmission · TX

Driving at highway speeds the RPM would suddenly rev up very fast and the car would appear to be in neutral then soon go back to normal. On another occasion, taking a turn at 15 mph the car became as if in neutral, RPM would go very high, then shortly the RPM would drop and the car would be back in drive. The car was taken to the dealership, they checked it, noted that they could not duplicate the problem, and will not take any further action unless it repeats. The danger is if this occurs when driving into traffic, turning into traffic, driving on a freeway and the engine slips into the neutral mode, a collision can occur , risking injury, life and property. The only warning was the RPM going up very fast, and the car not reacting to pushing on the gas pedal. Attached is a PDF file that includes some summaries summaries of issues from web sites relating transmission problems of slipping into neutral.