2021 Kia K5 Complaint Log

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.

Main wiring harness melted in my fuse box, had to pay $5000 to replace, turbo leaked into my engine and cause for the engine to blow! Hadn’t even had the car a year !! This is getting ridiculous.

Hi I brought my 2021 kia k5 got line last February 2023 around 44k miles I have had coolant leak where nobody can tell me where is the leak coming from I look online and other Kia owner have had the same issues

The Electric seats do not adjust due to failed motors. Electric mirrors do not adjust due to failed motors. Gas refuel door does not open due to faulty actuator. All things that make the care dangerous to drive. Online search reveals that all three issues are very common in the 2021-2023 KIA K5 cars. We believe they pose a danger. Also, they seem to break at about 40-60K miles. Often out of warranty and dealer will not fix even though they acknowledge that the items in question are an issue.

On Mon, Nov 18, 2025, I was driving at 60 mph with cruise on. Suddenly cruise was cancelled and check engine and low oil pressure lights came on. I pulled off road at earliest point possible. Seemed to be running ok. Drove slowly to a convenience store and turned off engine. I checked oil and it was low. When I was walking out to car after buying some oil, I saw oil under car. I called tow service and had it delivered to dealership. Upon inspection, the dealership determined the oil drain plug had fallen out and the engine needs to be replaced. The oil had been changed by an independent shop at 75085 miles. This incident happened at 78,887 miles. I feel the drain plug would have fallen out before 3002 miles if it was put in loose. This issue needs to be made into a recall with reimbursements for engine replacements and towing. If this had happened on a busy road and engine seized, there could have been a wreck trying to get off road.

For breaks: at 20k miles the steering wheel shakes like crazy when braking, and also the pedals: the rotors are very cheap for being a 0-mile purchase vehicle and Kia does not replace this under warranty. I saw a forum that this is an issue for all owners of this Kia K5 and Kia doesn't care and does not replace them. For Electrical issue: the fuse box melted a couple fuse because I used my rear defrost system. Kia extended the warranty for the HVAC motor fan only because was burning the fuses, but they did not wanted to replace my issue with the rear defrost because I was above 60k for only 1000 miles. This is a poor-quality system, Kia does not recognize it. This is a safety issue because 1. There is an electrical issue with a melted fuse box. Im driving around a car like this with 2 kids. 2. I don't have rear defrost working and I live in Chicago (wild winter). They want to charge +$6000 to repair the fuse box.

I purchased a 2021 car in April 2024, which was originally side-swiped in November 2024. I filed an insurance claim and had to wait for the other insurer’s statement. In January 2025, the insurance company sent the car to one of their approved shops for electrical repairs, but the shop refused to work on it after noticing a missing airbag and flagged the car as a liability. They also mentioned the car had multiple past accidents and should have been listed as salvage, not clean title. I informed the dealership, but they refused to service the car, claiming the 30-day window had passed, even though their website states a 6-month warranty. Over the past year, I’ve been repairing the car myself and taking it to Kia and Midas, where I was told the car is in terrible condition. The dealership found water damage from a slow leak and wiring issues that were present when I bought the car. Now I’ve been quoted over $5,000 for repairs including a new computer and electrical work. I’ve tried reaching out to the dealership with no success. This car is essential for commuting to work and for my kids. I’ve had to rent a car for the past month, costing me over $1,000. I’m seeking assistance with this situation as I believe I was sold a defective vehicle without proper disclosure. I put down $4,000 when I purchased the car and have continued making small payments because I need it to commute and can’t afford another vehicle right now. I have Personal Injury Protection (PIP) with Progressive and comprehensive and collision coverage through the dealership’s partnered company, Brio Management, as they operate from the same office. Given these circumstances, I’m asking for help with this situation because I was sold a car with undisclosed damage and defects, and I’ve been left with costly repairs and rental expenses while the dealership won’t assist me.

Have had issues with a/c since I bought the car. Has been inspected 3 times, apparently it was just the actuator doors not working. But not I have no a/c, and my dealer refused to fix it. On reddit there's a thread going around saying fuses are melting and that it's causing everyone's a/c to not work. My fuses for this particular spot are burnt looking. This is a safety issue in regards to living in Arizona, the heat is deadly. I will be trading my car in if this isn't recalled.

Air conditioning was fine then would suddenly cycle levels by itself. One day the air stopped blower. Tested the resister, it was bad. Replaced it and less than one week later the air stopped again. Resister and blower motor test fine. Fuses and relay are fine. No ac/hest causing driving concerns with window fog.

Issue with electrical wiring for HVAC. Air conditioner and heater goes out with no power. You have to pop the hood and press on the fuse box to get it to come back on.

My a/c has been giving me issues for about a year and a half to two years now. I have a 2021 Kia k5. When I first told Kia about it they told me it’s from the rain, if that’s the case then every car on the road would have this issue. Then they later told me it was my motor blower when I went back. There was a thousand dollar difference between two quotes they gave me for the same issue also. The air used to come on for a few hours or a day then go completely off. Now it’s sometimes will give off cold air if I put my hand to the vent but it’s nothing powerful to make a difference in the summer. I have read up on many other people having this issue. Kia also sent a recall to me last summer for a/c issues but the dealership told me that doesn’t apply to me because they are saying it’s my blower motor. I should not be held responsible for this malfunction at all. I want to request Kia give me an extended hvac warranty up to 180,000 miles at least!

While driving on my way home from work my , brakes became extremely hard to press down on and then my service engine light came on this all occurred on 7/31/2024. So the very next day I took my vehicle to a Kia dealership which was 8/1/ 2024 to find out what was causing this to happen. The technician stated that they would have to put it on a machine and run a diagnostic on it. I asked the technician while they were doing that to change the oil. I also realized that the oil light for my vehicle has NEVER came on since I purchased the car. So the technician did the diagnostic and stated that my vacuum pump had went out but he couldn’t tell me why or how this had happened. I then took the vehicle to my parents house and left it there in the garage for a few weeks to have second opinion done. I then took it to another Kia dealership and they stated there was no vacuum to the brake booster and said there was a broken camshaft and metal pieces were in the engine and the engine needed to be replaced. Again I asked what caused all of this and no one could give me an answer. I had only had the car a 1 1/2 years and don’t understand what caused all of this and I now have a car that I can no longer drive.

The blower motor goes out intermittently. I replaced the blower motor but found the problem to be much greater. Upon further inspection the fuse for the blower and wiring harness are melting into eachother at the fuse box. This issue is becoming more and more prevalent in model from the year 2021-2024 the remedy is a complete wiring harness and fuse box replacement.

Engine code came on, one interior headlamp works when it wants to, climate control module is bad it has cause the relay to blow and the resistor to go out. The air turns up on the control module by itself and then your ac just stops working and then starts again as it chooses. All of these are electrical issue as stated in MANY OTHER reports. And electrical issue is unsafe it can cause fire at anytime, my car is new 2021 Kia k5 Lxs, 60k miles and now who knows when the car is going to catch fire while my baby is strapped in a car seat and no AC . RECALL before lives are took from heat stroke or possible fire. To be “luxury” it’s sad I just paid my 3rd car payment and now I can’t even drive my car. Over 100 reports on this same problem and y’all do nothing. Kia is maybe at 70k sells a year now meanwhile Toyota and other are at 300k. When my baby is insured do to this crack head wiring system I will sue someone this is ridiculous.

While driving home from work, traveling on a state route at 55 mph, the cover under the engine just snapped off on the passenger side of the vehicle. It just started making a loud noise like I had blown a tire! I pulled over and noticed it was hanging down on the road. I had not hit anything, the bracket had it fully broken, it could have caused me to wreck or put any other drivers at risk for an accident. This isn’t the only Kia K5 I’ve seen with the engine dust cover hanging beneath the vehicle.

Rotors warp after only a few months. I’ve replaced them multiple times since I got my vehicle 2 1/2yrs ago. Steering wheel will shake really bad while braking and that’s how I know I need new rotors again. Many people with this year/make/model have had the same issue. It’s definitely a safety issue that needs to be addressed.

I bought my Kia k5, my blower motor went out upon inspection the problem was a multilink fuse for the blower motor. The fuse is burning the wiring harness, I believe this to be a fire hazard. After some research I believe this to be a common issue with this particular car.

AC System faulty . Cannot defog windows. Fusebox connection is malfunctioning Changed blower motor, resistor, fuse, relay. Many vehicles are having the same issue. It needs to be recalled.

main body wiring harness grounding problem ... hvac blower motor works only some times at dealeship they found fuse melted at fuse block they want customers to pay for a new wire harness when is obvious a factory defect this can cause a fire or an accident if anything else fails while driving

nspected blower fuse 40A at E/R Junction block and found multi fuse & E/R Junction block melting Need replacement multi fuse and wiring repair at E/R Junction block Service adviser recommends performing repair which is a known issue for Kia, because the electrical short could create a fire The AC stopped working, got it repaired and within a month it failed again, took it to dealership and they said it was a known issue, but not a safety recall.

Purge control valve but pressure in my gas tank and it has expanded. Kia will not replace my tank. Heard 2 loud bangs going down the road I started smelling gas. Check engine light came on. Pulled over and gas is pushing up and out behind my tank flowing down my wheel well. Opened the gas cap and it sprayed gas all over me. I have 2 small children and this could have been a extremely worse situation than it was. On another note I took my car to the dealership they did the update and confirmed my gas tank had expanded. They are not replacing my tank they said bc kia has "no remedy". And tried to sell me a bunch of other services on my vehicle instead. I've contacted kia and they basically told me the same thing they at this time will not be replacing my tank. I've picked the car up they cleared the codes and the car is still running rough.

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

Underbody dust panels have torn off of mounting bolts without any clear cause of damage, main front panel and right passenger side panel. Loose panels could have fallen off on highway. Only indication they came loose was when they began flapping in air flow from driving.

AC stopped blowing, vehicle had 62k miles. Took to an autoshop and they indicated that the AC blower and resistor needed to be replaced. I have both of these replaced, the AC work for a few minutes and then stopped again. I took it back to the same shop and the mechanic indicated that the fuse box was melted/burned (I have a picture as evidence). This is a tremendous fire hazard and we have been leaving our car parked outside of our home out of fear that it will catch fire. Their were no warning lamps whatsoever that indicated that there was a problem. Upon further online research, it appears that numerous people are having the same issue and Kia Motors has not done anythins about it, and we are having to pay thousands of dollars for repair when it is a manufacturer defect.

Car will lose power when accelerating and slow down to an almost complete stop in traffic with no pick up it will jerk as it is trying to accelerate it has happen two times in six months

When you get in the vehicle to turn it on the lights are on an everything else accept for the engine. The dashboard says the the vehicle is on, however it is not. Diagnostics shows no problems. This is on going in the New K5 community.

When I was driving I heard big boom sounds in my backseat which ended up being my fuel tank which expanded and raised the back seat. It slowly got worse impacting my car’s fuel sensor and the tank expanded more and more I drove.

My Gas tank has Expanded in Size and has made my back seat Pop up and gas leaking when it does because the ring around the Gas pump would Loosen Up. I noticed this issue first around April of Last year when it got Warmer. I would have horrible fuel efficiency, and my gas hand acted very Crazy. A few times it felt like I had been hit by a car from the Back a large Boom! When I am have a problem m car would slow down on highway and wouldn’t Accelerate at all. For past few months it started again. But what made me take it in was a louder bang followed by seat not only popping up but not being able to close. Service center kept my car said it was not safe to drive , I have been without transportation going on 3 weeks.

I was driving when I heard a loud bang and my 11month old son who was in the back seat woke up then started smelling gas and I looked out my mirror and gas was spewing out of my closed gas cap when I pulled over and looked my back seat was off its mounts and what I assume is the fuel pump was popped out of place as well I have taken it to my Kia dealer and they said it has been escalated to corporate I am still waiting for an update

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!!!!

The fuse pin melted into the wire harness. Kia is not recognizing this as a safety issue although they acknowledge that the melting pin could cause a fire.

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.

I have 2021 Kia k5 gt line I am having similar problem as other who own a Kia k5 get line 2020,2021, 2022 and 2023. Ac works one time next I turn the car off and the next time I start it up it doesn’t work anymore and now my ac does not work now and it is off completely

Blower motor stops working, have to take fuse box cover off and move fuse assembly to regain function of blower motor. Replacing fuse only helped for a couple of months.

My car just stopped working, it was towed to a local Lokey Nissan in Clearwater FL where it was purchased. Since it was a defect Lokey Nissan sent it to Lokey KIA in Clearwater FL. Lokey KIA stated the gas can had expanded and also caused damage to the frame and the cost to repair was more than the value of the car so they sent it up to Corporate for further instruction. This was 6 weeks ago. Nobody will return my calls, KIA still has the vehicle and I am getting nowhere here and am without a car. Please help I don't know what else to do!!!!!!!!!!

Air conditioner blower goes on and off intermittently without any pattern. Sometimes it will work for days and then will not turn on again. There is no rhyme or reason to it. Without the blower working I cannot defog / defrost my windshield and gives me poor visibility. Brought it to the Kia dealership they said the fuse wire harness has melted and fused into the engine block. They went on say that it will cost around $5000.00 to fix. Because I drive frequently I am out of warranty. The service desk office manager said she has been seeing more of these come in. Sounds like a manufacturer defect and should be under recall.

Bought the car used and had it in within first two weeks with 6k miles on it for warped brakes. They repaired. Now it has 68k miles on it and had all maintenance. 2nd owner and now we are told the antifreeze is going thru the turbo and into head gasket and Kia will not do anything. We were not aware the 10 yr 100,000 miles was not transferable. 6k miles out of warranty and they want us to buy a motor. This car has always been maintained and should not need a motor with only 68k miles. The optima’s had the same issue as we also have an optima which was covered due to recall. This should be looked at. The dealership charged us 200 for diagnostics and said too bad you pay for it.

I purchased the vehicle on 01/08/2024, less than 14 days later, the brake booster needs repair; it’s currently making a hissing now as the air is leaking out and as a result, my brakes are not working properly.

Fails to upload contacts. Voice recognition does not work. Does not identify caller. Only way to use their system to answer a call while driving is to physically pick up the phone from the charger, look at the phone and press the bluetooth function twice to answer the call.. I was at two dealers and talked to their corporate customer service reps and an escalation rep who told me they do not support Android any longer and to hard wire Android play for use. I tried that and Android play does not work very well. To answer a phone is basically the same process. The mechanic at one of the dealers has a Kia and told me he has the same issue. How many other folks are driving Kias and have to take their eyes off the road to answer a call? This is Extremely dangerous. Kia will do nothing to fix the problem. The car is my office. I need to have these functions working just like when i purchased the car. This is my business. This is going to cause a crash

The horn for this vehicle simply stopped working. The horn was used earlier in the day to prevent a different vehicle from changing lanes to avoid an accident. My wife has the same vehicle (year make and model) and her horn stopped working 2 weeks ago. The fuse is not the issue on either vehicle. My wife was informed by local Kia that this issue has been common. I researched this issue online and several Kia customers have experienced the same issue. This does not seem coincidental, and poses a great safety concern! Customers should not have to front the cost for this as it seems to be a defect in the manufactured line.

Car thermostat failure, car overheats and only 89000 miles

The fuel lid does not function properly. I owned the vehicle for almost 3 years and the fuel lid did not want to open. It was completely stuck after making sure that the vehicle was unlocked, as I always do, when going to put gas. I stood in the gas line for 30 minutes pushing the fuel lid trying to open it and it never budged

Loss of power. Check engine light came on

I've took my lease vehicle too dealer for the same problem 3 time car shake no matte what speed check engine light flashes code P0302 cylinder 2 misfire

The contact owns a 2021 Kia K5. The contact received notification of NHTSA Campaign Number: 23V149000 (Air Bags) however, the part to do the recall repair was unavailable. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The manufacturer was not made aware of the issue. The contact had not experienced a failure. Parts distribution disconnect.

Vehicle will occasionally fail to properly initialize its safety systems, causing ABS, Traction Control, FCW, warning, auto stop, auto hold lights to come on and the aforementioned systems to fail. This disables driver assist features and important safety systems. Kia Dealer does not attempt to resolve. Claims that “we parked too close to a tree and the vehicle thinks it was in an accident” would like further investigation from Kia to be performed regarding this issue.

My vehicle has been experiencing shifting delays when accelerating. Often times when I stop accelerating my vehicle has a delay and remains revved up for a few seconds before the RPM's go back down. The sluggish/delayed acceleration presents a safety issue when the vehicle is not operating as it should. This issue has been occurring for about 6 months. I informed the dealership where I purchased the vehicle and have the routine maintenance done and they say there are no issues reported about the issues I have been having. I addressed the issue again over the weekend when I had my oil change and tire rotation on April 1, 2023 and I have been told the same thing that there are no issues reported. But the dealership fails to report the issue I had addressed the first time.

Vehicle radio fails to initialize wireless Apple Carplay. The process to get it to work varies. This has been an ongoing issue with the car. Dealer will not update vehicle software.

I was rearended into another vehicle at a speed of about 50mph, then rearended again by and SUV, not one of my 9 airbags deployed.

One day I was driving my car when suddenly I heard a loud explosion sound from the back. I continued to drive the car until I could pull over to inspect the car. In the midst of pulling the car over I began smelling a strong odor of gas in the cabin of the car. Prior to stopping the car started skipping and missing badly. I pulled over checked the car and discovered something malfunctioned and caused the rear seat to pop up and be bent from the frame. I proceeded to look under the seat and saw where what appeared to be the fuel pump almost popped out, the bracket above the fuel pump was broken and popped up from the explosion, the seat would not go back in place. I looked at the gas hand I went from 3/4 tank of gas to E in less than a few miles. The exhaust also sounds like something blew or came apart the car runs very loud and you can hear the car sounding like the exhaust have a hole. After the sequence of events the engine light never came on. This is huge life safety problem that should have never happened.