Kia K5 Complaints (2021)

169 consumer complaints on file.

#11712308January 21, 2026
ELECTRICAL SYSTEM
Blower motor stops working for a bit with no ac or heat
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11711403January 16, 2026
FUEL SYSTEM, GASOLINE
The contact owns a 2021 Kia K5. While driving at an undisclosed speed, the contact heard a loud explosion coming from the rear of the vehicle, and there was a dragging sound coming from the vehicle. The contact stated that the rear seat raised up into the air with children seated in the seat. The contact became aware of fuel leaking and that the fuel tank was hanging down. The vehicle was towed to the residence and was later driven to a KIA dealer. The manufacturer was made aware of the failure. The approximate failure mileage was 116,000.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11705473December 16, 2025
ELECTRICAL SYSTEM, ENGINE, FUEL/PROPULSION SYSTEM
The vehicle experiences severe stalling and loss of power while driving. When attempting to accelerate, the vehicle hesitates, shakes violently, and will not accelerate beyond approximately 10–20 mph. The vehicle then stalls completely and shuts off. These failures occur both after the vehicle has been parked and while actively driving. When placed in drive, the vehicle shakes aggressively and stalls. The check engine light is illuminated. The stalling has occurred multiple times in the middle of freeway traffic, creating an extreme safety hazard. My child has been in the vehicle during every occurrence. On one occasion, the vehicle shut off completely while on the freeway, placing our lives at risk and nearly resulting in a serious collision. This issue is unpredictable, persistent, and prevents safe operation of the vehicle. The vehicle has been inspected and worked on by Southwest Kia and A-Z Auto, but the defect continues to occur. I believe this is a manufacturing or design defect related to the engine or powertrain that poses a serious safety risk and should be investigated to determine whether other vehicles are affected.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11705470December 16, 2025
FUEL/PROPULSION SYSTEM, VEHICLE SPEED CONTROL, ELECTRICAL SYSTEM
Ever since I bought my car in July of 2025 cash I’ve been having issues. Shortly after purchasing my car began to stall , lose power repeatedly. I then took to southwest kia in Dallas they told me I had contaminated gas. They charged me $2,000 to clean my fuel lines , replace spark plugs & replace a fuel pressure sensor. Shortly after i got my car I had the same issues. I explained my concerns and they replaced my fuel tank free of charge. A week later same issue so I went to a local mechanic and he replaced another fuel pressure sensor a month passed same issues occurred at least 3 more times on 3 different occasions. I’ve had to get my car towed off the middle of the free way or road numerous of times. This has been a financial nightmare
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11705201December 15, 2025
FUEL/PROPULSION SYSTEM
Took car to Kia for an oil change and car started driving weird . Rpm hand running high. Check engine light came on , took car to Kia and fuel tank was expanded . Car is still not fixed , and Kia won’t continue to pay for rental.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11704826December 13, 2025
AIR BAGS, FUEL/PROPULSION SYSTEM
Recall SC263) AIR BAGS THAT DO NOT DEPLOY (SC356)x2 A MELTED FUEL TANK CAN LEAK, INCREASING THE RISK OF A FIRE
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11704502December 11, 2025
FUEL/PROPULSION SYSTEM, ENGINE, ELECTRICAL SYSTEM
Within three days of purchase, the vehicle experienced a fuel system failure requiring the gas tank to be replaced. Shortly afterward, the check-engine light illuminated, indicating additional engine or emissions problems. The failures occurred without warning and made the vehicle unsafe to drive. The engine warning has continued to appear, suggesting a recurring or unresolved malfunction. The defects create risks including fuel leakage, stalling, engine shutdown, and potential fire hazard. The safety of the driver and others on the road is put at risk because the vehicle may fail while in motion. The problem appeared immediately after purchase and continues to recur. The dealer was notified but refused to diagnose or repair the vehicle further. No manufacturer inspection has occurred because the dealership declined to provide service. The warning light first appeared within the first week of ownership and has remained intermittent. The vehicle shows signs of unstable engine operation and ongoing system malfunction. The issue has been observed by the dealer, but they declined to perform proper diagnostics or repair. The defects are persistent and pose ongoing safety concerns.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11703986December 9, 2025
FUEL SYSTEM, GASOLINE
The contact owns a 2015 Kia K5. The contact received notification of NHTSA Campaign Number: 25V794000 (Fuel System, Gasoline). The contact stated that days before the vehicle was scheduled for an unknown recall repair, while refueling, the contact observed gasoline pouring out of the tank. The vehicle was taken to a dealer, where it was diagnosed, and determined that the fuel tank had expanded due to fumes being trapped inside. The vehicle was not repaired due to parts not being available for the repair. The contact stated that the manufacturer has exceeded a reasonable amount of time for the recall repair. The manufacturer was notified of the failure. The failure mileage was approximately 70,000.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11702431December 2, 2025
ELECTRICAL SYSTEM, STEERING, LANE DEPARTURE: BLIND SPOT DETECTION
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.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11700934November 22, 2025
FUEL/PROPULSION SYSTEM
For the past 16 months I have been experiencing a fuel odor in my vehicle cabin while idling or when in slow moving traffic. Knowing this likely is due to a fuel leak, I have taken it to the dealership 6 times to find the leak and remedy it. The dealership always finds something to repair/replace under warranty, however, the fuel smell persists. Over the past 16 months, this has increased in how strong the smell is and how often I am smelling it. It started out as only smelling fuel once a week or so. Now the smell is there during ever drive. It seems as though if my tank of 7/8 or above full, it does not smell for some reason. Upon searching online, many other K5 owners are experiencing the same exact issue and the dealership has been unable to resolve this. The vehicle has had 3 seperate recalls for fuel issues and I believe another is necessary regarding this because the recalls has not fixed the fuel leak I and many others are experiencing. Kia is doing the bare minimum to resolve this and my children are breathing fuel fumes consequently. Please note, not all my repair invoices are attached. I do not have access to all of them at this time
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11697698November 5, 2025
FUEL SYSTEM, GASOLINE
The contact owns a 2021 Kia K5. The contact stated that fuel odor was entering the cabin of the vehicle. The contact stated that the rear passenger’s seat seemed to be inflated. While driving approximately 70 MPH, the contact became aware of fuel squirting out of the fuel filler neck. The fuel gauge fluctuated from full tank to half tank or empty. There was no warning light illuminated. The fuel odor became stronger, and the contact pulled over to the side of the road at a rest stop. A mobile service tech arrived to inspect the vehicle but found no failures. The contact continued driving to the residence. The vehicle was taken to the dealer, who found that the fuel tank and fuel line had failed and needed to be replaced. The dealer sent a photo to the manufacturer to confirm the necessary repair. The vehicle was not repaired. The manufacturer was informed of the failure and determined that the fuel tank and PCV valve were swollen and needed to be replaced. The manufacturer offered a buy-back for the vehicle and opened a case. The failure mileage was unknown.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11696699October 30, 2025
ENGINE
no power at all all most in a accident with it when it lost power they said it’s the turbo l paid 33,000 for this car it had 35000 miles on it has 103000 on it when it lost power
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11693378October 14, 2025
POWER TRAIN
The contact owns a 2021 Kia K5. The contact stated that while his daughter was driving approximately 15-20 MPH, the engine revved and the gears in the transmission unexpectedly failed. In addition, the vehicle failed to accelerate as intended while depressing the accelerator pedal. No warning lights were illuminated. The vehicle was not diagnosed or repaired by an independent mechanic or dealer. Due to the safety concerns, the vehicle was no longer driven and remained parked at the residence. The manufacturer was not informed of the failure. The failure mileage was unknown.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11692467October 9, 2025
FUEL/PROPULSION SYSTEM, STRUCTURE:BODY
While driving, the check engine light came on. Soon after, the rear floor of my 2021 Kia K5 lifted upward, and I noticed the fuel tank underneath had swollen. When I opened the gas cap, it blew off with force and gasoline sprayed on me, soaking my clothes. This could have caused a fire or explosion. The car is now unsafe to drive, and the rear seat cannot be used because the floor is deformed. I discovered that Kia has a Voluntary Emissions Service Campaign SC288 addressing this exact issue (fuel tank swelling and excessive pressure due to a faulty PCSV valve and EVAP system), but this is clearly a safety hazard, not just an emissions problem. Many other owners have reported the same issue online. I believe this defect should be escalated to a safety recall before someone gets seriously injured or worse.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11691125October 3, 2025
AIR BAGS, FUEL/PROPULSION SYSTEM
I have a Kia K5 and was not informed of the SC288 Service campaign Fuel tank Inspection & EMC update (VESC) expansion of fuel tank and explosions' of fuel tanks. My vehicle was not apart of the recall for the fuel tank expanding program. I took my vesical in for service for over heating and it failed the SC288 Service Campaign. my gas tank expanded and caused structural damage to my car. it has been 8 weeks and I have not have had any contact from Kia consumer affairs. I am now with out resolve and I now have to get a lawyer.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11691075October 2, 2025
ELECTRICAL SYSTEM
Kia has a known issue with the HVAC blower motor circuit on this vehicle model. They have issued a warranty extension related to relocating the blower motor fuse to another circuit in the fuse box, due to potential burning of fuse(s). After executing this extended warranty fuse-relocation-procedure, our blower motor relay burned and was replaced twice by separate Kia dealers. Kia is now claiming that our entire wire harness needs to be replaced at our own cost. It is quite obvious that any wire harness issue is now very dangerous (electrical arcing and melting) and was caused by the original motor circuit issue. (The two Kia dealers agree with our assessment but are saying that Kia will not repair because original warranty extension was limited to rewiring.) Safety issues: Electrical fire hazard (already demonstrated with burning/melting fuse-box before and after extended warranty procedure was executed). No A/C in 95 degree F conditions.
Crash:
No
Fire:
Yes
Injuries:
0
Deaths:
0
#11689273September 23, 2025
ELECTRICAL SYSTEM, ENGINE, SEATS
The car has a sudden loss of power but doesn't shut off. The drivers eat doesn't move towards or back and the back seat popped up for no reason whatsoever. We have taken it to the dealership and they say its not a recall but its doing the same things that others in the same year and model are doing. Why isn't this one on the list . Its paid off and haven't been able to drive it for a year now . Wasted money getting it towed to dealership and back . Ridiculous!!!!
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11685517September 6, 2025
FUEL/PROPULSION SYSTEM, SEATS
I was driving down the highway and my car made a loud bang noise. It would not accelerate over 50 mph no matter how hard I pressed the accelerator. Took to dealership and they told me I needed a new battery and charged me $365. Drove it and still won’t go over 50 mph. They kept it for a week and said it had a faulty valve that caused pressure to make the gas tank expand, pushing up back seat. Said it wasn’t a recall and would cost me $3600 to fix. Told me it was too dangerous to drive. Did research and saw that this was discovered over 2 years ago but I was never told. Now they say I have too many miles on my car to fix it. The gas fumes inside the car are intolerable and it still won’t go over 50.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11682417August 22, 2025
UNKNOWN OR OTHER, FUEL/PROPULSION SYSTEM
HVAC is not working at all, not even blowing hot air. I've been told it could be a wiring issue or have to change my blower and resistor. KIA has told me they could not help because my car is over the 60,000 mile warranty. However, my car is 70,000 miles and about 4 years old. It has had other recall issues and just trying to be helped.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11682404August 22, 2025
ELECTRICAL SYSTEM, UNKNOWN OR OTHER
At the beginning at the year I had to change my starter because my car would leave me stranded on the street, at a stop light or any time my car would stop. I was once in the car with my little brother and in the middle of the street it would not start again and left us stranded. Others around me had to help me push the car to the side of the road that way I wouldn't be rear ended. Now, I'm having other issues such as HVAC were my cars AC does not turn on. It doesn't even blow hot air. Some mechanics have told me it's probably my blower and resistor and other that it's a wiring issue. My car is only 4 years old and should not be having so many issues. I have tried reaching out to Kia but always get sent to voicemail or have told I would be charged for it to just be seen. If anyone could help me with my car that would be greatly appreciated.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0

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