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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

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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.

8 crash reports2 fire reports6 injury reports

What owners actually said

165 reports
Mileage unknown · Jul 27, 2025
Unknown Or Other

I am submitting this complaint regarding ongoing and unresolved safety issues with my Kia K5, which I believe are directly related to a known recall involving the ECM (engine control module) and/or fuel system. My vehicle continues to jerk and misfire during acceleration, and it has even stalled at idle on multiple occasions — …

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I am submitting this complaint regarding ongoing and unresolved safety issues with my Kia K5, which I believe are directly related to a known recall involving the ECM (engine control module) and/or fuel system. My vehicle continues to jerk and misfire during acceleration, and it has even stalled at idle on multiple occasions — creating a serious safety concern for myself and others on the road. I have already completed the recommended repairs, including new ignition coils and spark plugs, yet the problem persists. Despite these symptoms aligning with known recall-related issues, Kia of Orange Park (Florida) has refused to fully diagnose or investigate the matter, citing that the recall does not apply in my case. However, the symptoms match those outlined in other ECM/fuel system-related recalls, and this is not the first time this dealership has failed to properly address mechanical concerns. Previously, I had to escalate an A/C issue to Kia Corporate, which only resulted in a resolution after a recall was issued right before my vehicle was set to be returned with the same issue. That situation makes me extremely concerned that my current safety concerns are again being ignored and will only be addressed after a broader recall is issued. I am requesting that the NHTSA investigate this matter, as I am worried this defect may affect other vehicles and poses a safety risk that Kia and its dealerships are not taking seriously. Thank you for your attention and action.

NHTSA ODI #11676487

Mileage unknown · Jul 23, 2025
Electrical System

AC blower stoped working

NHTSA ODI #11675567

Mileage unknown · Jul 21, 2025
Fuel/propulsion System

My fuel tank expanded while I was driving on the highway, causing my car to stall and would not respond to me pushing on the gas. I pulled over on the side of the highway and looked back and saw my rear seats were pushed up. Got it towed to the Kia dealership and they informed me that my car was totaled because the gas tank expa…

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My fuel tank expanded while I was driving on the highway, causing my car to stall and would not respond to me pushing on the gas. I pulled over on the side of the highway and looked back and saw my rear seats were pushed up. Got it towed to the Kia dealership and they informed me that my car was totaled because the gas tank expanded so much it bent my frame. This has been an ongoing issue with Kia/Hyundai vehicles but they have still not issued a formal recall, only a voluntary callback even though this is a very dangerous defect.

NHTSA ODI #11675207

Mileage unknown · Jul 19, 2025
Electrical System

Air/hearing works intermittently. I’ve had fuses replaced and this seems to be a known and ongoing issue that Kia refuses to acknowledge. Many have reported that the wires are melting inside of the fuse box and I fear that this may result in a fire.

NHTSA ODI #11674755

Mileage unknown · Jul 19, 2025
Fuel/propulsion System

Expansion of air tank, causing to pop up frame in backseat and total car deemed unsafe to drive. No warnings car had never been in the shop prayer happened while driving over rule Mountain area with two children in the backseat. Kia inspected diagnostic ran stated it was air in gas tank under a recall claim to fix it for free an…

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Expansion of air tank, causing to pop up frame in backseat and total car deemed unsafe to drive. No warnings car had never been in the shop prayer happened while driving over rule Mountain area with two children in the backseat. Kia inspected diagnostic ran stated it was air in gas tank under a recall claim to fix it for free and then two weeks later stated it was going to Kia America for a case number. Kia America called and stated that it was not safe to drive and the car is totaled.

NHTSA ODI #11674722

Mileage unknown · Jul 18, 2025
StructureUnknown Or Other

I was driving down the highway when I heard a loud explosion like a gunshot that caused me to slow down and almost getting into an accident. It was scary; I came to a stop and realized that my sunroof had exploded. There is a large hole in my sunroof bigger than a watermelon with glass particles everywhere.

NHTSA ODI #11674500

Mileage unknown · Jul 4, 2025
Fuel/propulsion System

Driving down highway, gas hand was on half a tank then all of a sudden gas hand drops to empty and light comes on, engine started sputtering. Heard a loud pop in the back seat looked back and back seat has popped up from base. Strong odor of gasoline poured into the car. Went to closest gas station to get off highway. Unable to …

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Driving down highway, gas hand was on half a tank then all of a sudden gas hand drops to empty and light comes on, engine started sputtering. Heard a loud pop in the back seat looked back and back seat has popped up from base. Strong odor of gasoline poured into the car. Went to closest gas station to get off highway. Unable to put fuel into tank. Called Quality KIA of Greenwood they said get out of the car and do not drive it. Called for a tow, vehicle has been towed to Quality KIA of Greenwood.

NHTSA ODI #11671235

Mileage unknown · Jul 3, 2025
Unknown Or Other

Hit pot holes lower control arm was replaced

NHTSA ODI #11671124

Mileage unknown · Jun 19, 2025
Unknown Or Other

AC system is interminably stops working for hours or days then starts working again. Have taken to dealer but every time I get it there unit starts working and they say they can’t check it if it’s working. This has been going on for over a month.

NHTSA ODI #11667899

Mileage unknown · Jun 14, 2025
Fuel/propulsion System

Back seat popped up due to fuel tank rising from under seat while driving

NHTSA ODI #11666943

Official recalls

6

25V794000 · 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

0

No exact-year investigations in this snapshot.