I Heard a loud noise in the backseat twice and noticed the back seat raise up also the check engine light came on but also the fuel was going down and up (the gauge), is currently at the kia dealership and has been reported fail recall
2021 Kia K5
Owner reports · Recalls · Investigations
More warning signs than most K5 years
Owner complaints for the 2021 Kia K5 are substantially higher than the model-year median of 78.5.
About this comparison →How this year compares
Owner complaints by model year
Compare all K5 years →Counts vary with age, sales and reporting. They are not failure rates.
What owners reported most
All reported categories
Tap a category to read its complaints. One report may name several components.
When problems were reported
Mileage at the reported incident
Limited mileage data: 31 of 165 reports include usable mileage. There isn’t enough coverage to show a useful chart.
NHTSA’s mileage field refers to the reported incident, not necessarily the filing date. This shows report counts, not the likelihood of a failure.
What to inspect
Issues worth paying extra attention to based on owner reports.
- Electrical System. Review the 45 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
- Fuel/propulsion System. Review the 42 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
- Engine. Review the 29 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
NHTSA owner reports · September 18, 2026 snapshot.
Lane Departure complaints
9 reportsThe steering wheel became stiff all the sudden and became hard to turn. As well as all the warning lights came on when that happened such as Adaptive Cruise Control Automatic Emergency Braking Blind Spot Warning Forward Collision Warning Lane Departure Warning Lane Keeping Assistance Parking Collision Warning Rear Cross T…
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The steering wheel became stiff all the sudden and became hard to turn. As well as all the warning lights came on when that happened such as Adaptive Cruise Control Automatic Emergency Braking Blind Spot Warning Forward Collision Warning Lane Departure Warning Lane Keeping Assistance Parking Collision Warning Rear Cross Traffic Warning. I was driving in the middle of the road when this happened and this could’ve caused a huge accident due to the fact that I couldn’t steer my car properly. No, the problem has not been resolved yet. It is in the dealership at the moment to be inspected. There was no problem prior to the other signs coming on besides low tire pressure. The appeared as I was driving on the road.
My 2021 Kia K5 EX has a severe and unsafe steering problem. The vehicle consistently pulls hard to the right on its own, even on straight roads. If I loosen my grip even slightly, the car immediately veers to the right. The steering wheel does not stay centered, and I have to constantly fight the steering just to keep the car in…
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My 2021 Kia K5 EX has a severe and unsafe steering problem. The vehicle consistently pulls hard to the right on its own, even on straight roads. If I loosen my grip even slightly, the car immediately veers to the right. The steering wheel does not stay centered, and I have to constantly fight the steering just to keep the car in the lane. This issue has continued despite multiple alignments, tire replacements, and inspections. Nothing has fixed the problem, and the steering behavior feels mechanical or electronic in nature. I no longer feel safe driving the vehicle because it feels like I could lose control at any time. Additionally, my vehicle is affected by the open recall (SC356 / NHTSA 25V794) involving fuel tank expansion and fire risk. The status says ‘Incompleted – remedy not available,’ meaning there is currently no repair solution. The combination of a steering defect and a fire-risk recall makes this vehicle unsafe to operate. I am reporting this because the steering issue appears to be a serious safety defect that needs investigation.
The vehicle consistently pulls sharply to the right while driving, creating a serious safety hazard. As soon as I release the steering wheel, the car veers aggressively to the right, making it difficult to stay in the lane. The steering wheel does not center and requires constant correction. The issue feels mechanical and signif…
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The vehicle consistently pulls sharply to the right while driving, creating a serious safety hazard. As soon as I release the steering wheel, the car veers aggressively to the right, making it difficult to stay in the lane. The steering wheel does not center and requires constant correction. The issue feels mechanical and significantly impacts my ability to drive safely.
The contact owns a 2021 Kia K5. The contact stated that while driving at various speeds, the Lane Assist feature would illuminate without other vehicles nearby. The contact also stated that the vehicle would independently switch lanes independently; causing the contact to forcefully adjust the steering wheel into the desired lan…
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The contact owns a 2021 Kia K5. The contact stated that while driving at various speeds, the Lane Assist feature would illuminate without other vehicles nearby. The contact also stated that the vehicle would independently switch lanes independently; causing the contact to forcefully adjust the steering wheel into the desired lane to prevent a potential crash. The contact manually disabled the features; however, the features independently reactivated. In addition, the defroster failed to operate as needed which obstructed her vision due to fog on the windshield. The vehicle was initially taken to a dealer, but the contact was offered no assistance. The contact then took the vehicle to Kia of Irvine (45 Oldfield Building B, Irvine, CA 92618) where two mechanics acknowledged the failure while test driving the vehicle. The contact was assured by the dealer that both safety features where disabled; however, within minutes of leaving the dealer; the features independently reactivated. The manufacturer was notified of the failure and the contact was given a case number. The vehicle had yet to be repaired. The failure mileage was 17,951. The consumer called to make an appt due to the check engine light illuminating and informed vehicle will not be repaired for a few weeks. In the meantime the gas smell is pouring through the vents.
The contact owns a 2021 Kia K5. The contact stated that the driver assist feature would activate independently. The contact stated no warning light was illuminated. The contact was able to park on the side of the road and shifted from park to drive to deactivate the driver assist feature and continued driving to his destination.…
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The contact owns a 2021 Kia K5. The contact stated that the driver assist feature would activate independently. The contact stated no warning light was illuminated. The contact was able to park on the side of the road and shifted from park to drive to deactivate the driver assist feature and continued driving to his destination. The contact called the local dealer and made them aware of failure. The vehicle was not diagnosed or repaired. The manufacturer had been informed of the failure. The failure mileage was 32,077.
In this car, when braking or using the adaptive cruise control, the car shakes a lot, making yo lose control of the vehicle.
Since October these features have been on and off working when they want to. I don't know what is happening with the safety features but it needs to be fixed or a update is needed for all the safety features.
The contact owns a 2021 Kia K5. The contact stated that while her daughter was driving at 5-10 MPH and making a turn on a road with no lanes, the steering wheel inadvertently started shuddering and became rigid, causing the contact's daughter to lose control of the vehicle. The vehicle crashed into a construction dumpster. An un…
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The contact owns a 2021 Kia K5. The contact stated that while her daughter was driving at 5-10 MPH and making a turn on a road with no lanes, the steering wheel inadvertently started shuddering and became rigid, causing the contact's daughter to lose control of the vehicle. The vehicle crashed into a construction dumpster. An unknown warning message illuminated. The air bags did not deploy. The contact's daughter did not sustain any injuries. A police report was not filed. The vehicle was towed to the contact's residence. Then, the vehicle was towed to the dealer who towed the vehicle to a collision center. The dealer informed the contact that the vehicle could not be repaired under NHTSA Campaign Number: 21V447000 (LANE DEPARTURE, STEERING) as the VIN was not included in the recall. The manufacturer was notified of the failure and a case was opened. The vehicle was not diagnosed or repaired. The approximate failure mileage was 11,700.
Official recalls
625V794000 · Fuel System, Gasoline
Nov 17, 2025
Kia America, Inc. (Kia) is recalling certain 2021-2024 K5 vehicles. A damaged check valve can allow air to enter the fuel tank, causing it to expand and contact hot exhaust components, melting the tank.
Consequence & remedy
Consequence: A melted fuel tank can leak, increasing the risk of a fire.
Remedy: Dealers will replace the check valve. The fuel tank will be inspected for damage and replaced as necessary. All repairs will be performed free of charge. Owner notification letters were mailed January 16, 2026. Owners may contact Kia customer service at 800-333-4542. Kia's number for this recall is SC356. Vehicle Identification Numbers (VINs) involved in this recall will be searchable on NHTSA.gov beginning December 1, 2025.
23V149000 · Air Bags:side/window:curtain
Mar 7, 2023
Kia America, Inc. (Kia) is recalling certain 2021-2023 K5 vehicles. The side curtain air bags may have been installed incorrectly, causing them not to deploy properly in the event of a crash.
Consequence & remedy
Consequence: Air bags that do not deploy as intended can increase the risk of injury in a crash.
Remedy: Dealers will inspect and reinstall the side curtain air bags, as necessary, free of charge. Owner notification letters were mailed April 7, 2023. Owners may contact Kia customer service at 1-800-333-4542. Kia's number for this recall is SC263.
22V760000 · Power Train:automatic Transmission
Oct 11, 2022
Kia Motors, Inc. (Kia) is recalling certain 2021-2022 Sorento and 2021-2023 K5 vehicles. The vehicle's "fail-safe" limited-mobility drive mode may be impaired, when prompted by a transmission oil pump malfunction, which can result in a complete loss of drive power.
Consequence & remedy
Consequence: Loss of drive power increases the risk of a crash.
Remedy: Dealers will inspect and replace the transmission, as necessary. Dealers will also update the transmission control unit software. All repairs will be performed free of charge. Owner notification letters were mailed December 9, 2022. Owners may contact Kia customer service at 1-800-333-4542. Kia's number for this recall is SC250.
21V519000 · Fuel System, Gasoline:delivery:hoses, Lines/piping, And Fittings
Jul 8, 2021
Kia Motor America (Kia) is recalling certain 2021 Sorento and 2021-2022 K5 vehicles equipped with 2.5L turbocharged engines. Fuel may leak at the pipe connection between the high-pressure fuel pump and fuel rail.
Consequence & remedy
Consequence: A fuel leak increases the risk of a fire.
Remedy: Dealers will inspect and tighten, or replace the fuel pipe as necessary, free of charge. Owner notification letters were mailed July 21, 2021. Owners may contact Kia customer service at 1-800-333-4542. Kia's number for this recall is SC214.
21V447000 · Lane Departure: Lane Keep: Steering Assist; Steering
Jun 14, 2021
Kia Motors America (Kia) is recalling certain 2021-2022 K5 vehicles equipped with 2.5L T-GDI engines. The Rack-Mounted Motor Driven Power Steering (R-MDPS) system lacks the ability to diagnose communication faults. If a communication fault occurs while driving around a curve with Lane Following Assist (LFA) engaged, the steering assist level may not adjust properly, causing a sudden increase in the steering effort required.
Consequence & remedy
Consequence: A sudden increase in steering effort can increase the risk of a crash.
Remedy: Dealers will update the R-MDPS software, free of charge. Owner notification letters are were mailed June 24, 2021. Owner may contact Kia customer service at 1-800-333-4542. Kia's number for this recall is SC213.
Additional source detail variants (2)
Lane Departure: Lane Keep: Steering Assist
Kia Motors America (Kia) is recalling certain 2021-2022 K5 vehicles equipped with 2.5L T-GDI engines. The Rack-Mounted Motor Driven Power Steering (R-MDPS) system lacks the ability to diagnose communication faults. If a communication fault occurs while driving around a curve with Lane Following Assist (LFA) engaged, the steering assist level may not adjust properly, causing a sudden increase in the steering effort required.
Consequence: A sudden increase in steering effort can increase the risk of a crash.
Remedy: Dealers will update the R-MDPS software, free of charge. Owner notification letters are were mailed June 24, 2021. Owner may contact Kia customer service at 1-800-333-4542. Kia's number for this recall is SC213.
Steering
Kia Motors America (Kia) is recalling certain 2021-2022 K5 vehicles equipped with 2.5L T-GDI engines. The Rack-Mounted Motor Driven Power Steering (R-MDPS) system lacks the ability to diagnose communication faults. If a communication fault occurs while driving around a curve with Lane Following Assist (LFA) engaged, the steering assist level may not adjust properly, causing a sudden increase in the steering effort required.
Consequence: A sudden increase in steering effort can increase the risk of a crash.
Remedy: Dealers will update the R-MDPS software, free of charge. Owner notification letters are were mailed June 24, 2021. Owner may contact Kia customer service at 1-800-333-4542. Kia's number for this recall is SC213.
21V164000 · Air Bags: Air Bag/restraint Control Module; Air Bags:sensor:occupant Classification:front Passenger
Mar 11, 2021
Kia Motors America (Kia) is recalling certain 2021 Telluride, K5, and Forte vehicles. The Occupant Classification and Detection System (OCS/ODS) unit may not detect the presence of a child restraint system in the front passenger seat. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard (FMVSS) number 208, "Occupant Crash Protection."
Consequence & remedy
Consequence: In the event of a crash, deployment of the front passenger air bag, with a child in that seat, can increase the risk of injury to the child.
Remedy: Kia will notify owners, and dealers will replace the OCS/ODS unit, free of charge. The recall began March 18, 2021. Owners may contact Kia customer service at 1-800-333-4542. Kia's number for this recall is SC207.
Additional source detail variants (2)
Air Bags:sensor:occupant Classification:front Passenger
Kia Motors America (Kia) is recalling certain 2021 Telluride, K5, and Forte vehicles. The Occupant Classification and Detection System (OCS/ODS) unit may not detect the presence of a child restraint system in the front passenger seat. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard (FMVSS) number 208, "Occupant Crash Protection."
Consequence: In the event of a crash, deployment of the front passenger air bag, with a child in that seat, can increase the risk of injury to the child.
Remedy: Kia will notify owners, and dealers will replace the OCS/ODS unit, free of charge. The recall began March 18, 2021. Owners may contact Kia customer service at 1-800-333-4542. Kia's number for this recall is SC207.
Air Bags: Air Bag/restraint Control Module
Kia Motors America (Kia) is recalling certain 2021 Telluride, K5, and Forte vehicles. The Occupant Classification and Detection System (OCS/ODS) unit may not detect the presence of a child restraint system in the front passenger seat. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard (FMVSS) number 208, "Occupant Crash Protection."
Consequence: In the event of a crash, deployment of the front passenger air bag, with a child in that seat, can increase the risk of injury to the child.
Remedy: Kia will notify owners, and dealers will replace the OCS/ODS unit, free of charge. The recall began March 18, 2021. Owners may contact Kia customer service at 1-800-333-4542. Kia's number for this recall is SC207.
Model-level recall history does not show whether a particular VIN is affected or has received a repair. Check a VIN with NHTSA ↗
NHTSA investigations
0No exact-year investigations in this snapshot.
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