NHTSA Owner Complaint Log
This page lists owner-reported complaints filed with NHTSA for the 2024 Kia EV9. Complaints are unverified consumer reports submitted to NHTSA and do not by themselves prove a defect or defect rate.
The front drivers seat slightly shifts during tight turns. There is a slight click in the lumbar towards the center of the car.
BPM warning in the KIA app. Apparently, ICCU and battery failures are t known issues with the KIA EV9s.
[XXX] Message says warning "check ev system". they then sent a letter saying it had to go to the dealer, or the car would need A tow potentially. I can't get an appointment as they are way too busy to do anything other than tell me they will get back to me, repeatedly stating they will do so in one business day. it has been a week. My wife is scared to drive the car. I think it is bogus as no recall has been issued. I have had the car for 19 months with no such warning. Two days after it shows up on the screen in the car i receive the letter. This is fishy. it is either a recall, or it isn't. if it is why is it not in your data base? The vagueness of the message is inappropriate, and it implies danger. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)
Windshield wipers stopped working in middle of bad snow storm. I had to pull over, wait for the weather to improve before proceeding. I have a minor child and safety is a concern to me. Thought it was the wiper so I went to AutoZone to replace it and was told the problem is the wiper motor and that I needed to take to the dealership for repair
The contact owns a 2024 Kia EV9. The contact stated that while her husband was driving at an undisclosed speed, a burning odor was detected. The contact pressed the recirculate air button, but the burning odor intensified. No warning light was illuminated. The contact noticed flames coming from underneath the front driver's seat. The contact's husband pulled over and parked the vehicle. The contact, her husband, and their child were able to safely exit the vehicle. A vehilcle who had been driving behind stopped to assist, and since it was cold weather conditions, the contact and family waited for the Fire Department inside that owner's vehicle. There was no medical attention was received. When firefighters and police arrived, the fire had been self-extinguished. The contact was unaware of any reports filed by police or the fire department; however, the fire department informed the contact that there was no evidence of the lithium battery catching fire. The origin of the fire was unknown. The vehicle was towed to a tow yard, but it had not yet been declared totaled by the insurance company. The contact stated that upon inspection, the wire beneath the front driver's seat had melted. The manufacturer was not made aware of the failure. The failure mileage was approximately 20,000.
My vehicle popped up a red vehicle warning to check the electric vehicle system. It would no longer charge, was taken to the dealership where the emergency notification was sent :suspected condition with your EV9's Battery Management System has been detected and charging has been limited. A full system check is recommended. Please schedule an appointment with your local Kia dealership as soon as possible. And another CRITICAL EV WARNING your EV battery has a critical issue contact roadside assistance. This is a 2024 and has a total battery failure.
Car stopped working and wouldn’t start. I was told there is an ICCU failure. There is a back order of ICCU for this vehicle and unknown date of repair.
The contact owns a 2024 Kia EV9. The contact stated that while driving approximately 20 MPH, there was an abnormal slapping sound coming from the rear passenger’s side of the vehicle. While observing the tires, the contact became aware that the rear tires were bald, and the steel belts were coming from the inside of the tires. The contact used Fix a Flat inside the tires and was able to drive the vehicle to the residence. The following day, the vehicle was towed to the dealer, and the dealer that it was a known issue with the original tires on the vehicle. The contact was informed that the failure was caused by the battery, causing the vehicle to be too heavy for the vehicle. The inclination, tilt, or angle of suspension components with the shocks, struts, or control arms, known as the CANT, caused the tires to tilt outward approximately 2 or more inches. The dealer diagnosed that the suspension could have failed. The cant, suspension, and tires were replaced, and the wheels were aligned. The manufacturer was made aware of the failure, and a case was filed. The failure mileage was 12,668.
I recently purchase my 2024 EV9 from Carvana with 9578 miles listed on 12/12/25. Doing my 7 days to purchase this SUV. I had some concerns about the violent wobble when I drove over a bump. With some concerns about this SUV, I google to see if anyone else had this same issue. To my surprise I founded a lot of complaints and ways to resolved the issue. One consumer stated he had his EV9 aligned and reduce some of the wobble but not completely. I drove to Courage KIA in Gastonia NC. When I drove their system performed a per inspection on your vehicle. The alignment was way out of alignment. Had the alignment taken care of however it still a wobble. On 12/24/26 doing the snow and ice storm here in Charlotte, I attempted to make a trip to the store. The roads were wet but no snow or ice was on the roads. However when I hit a bump the rear end violently wobble and the rear end moved to the left and right farther it did before. I thought I was going to spin out of control.Now that I think about the very low mileage on this SUV. This perhaps is why they sold it. ly wobble
Two seatbelts failed in the rear of the car. One seatbelt in the third row seat and the middle seatbelt in the 2nd row back seat. This happened in quick succession soon after I purchased the car used from a Kia dealer in Orlando. The seatbelt in the third-row seat seemed to fold up and jam in a way that could not be unjammed. The middle seatbelt in the second row got stuck in its extended position, as if it were fully extended, and will not retract. The dealer is claiming that both failures were due to external issues and they are not covering them under warranty. But both issues seem odd to me -- the middle seat seatbelt is just fully extended and now won't retreat; the third row seatbelt folded up when it retracted but, in my experience, that happens somewhat frequently and usually the seatbelts just unfold and keep working. My concern is that this might be a sign that there is an underlying seatbelt manufacturing issue. The dealer is claiming that both seatbelt pretensioners need to be replaced. I have not repaired the seatbelt issues yet so they can both be examined. I can also sent photos of the seatbelts.
Wiper washer system was working properly until the first snowfall today. Despite the very small amount of snow, the wiper washer system for the front windshield will not operate. The rear washer works properly. Washer reservoir is full and the wipers work properly.
I would also like to highlight the serious safety concern due to cell deviation (imbalance) along with SOC (State of Charge) mismatch as per my car's BMS (Battery management system) which is present in my vehicle and shared with Kia corporate. In an electric vehicle, the high-voltage battery cells, the Battery Management System, and the battery coolant system function as a single integrated safety-critical system. When battery cells are imbalanced and there is a significant mismatch between the state of charge displayed to the driver and the lower usable energy calculated by the Battery Management System, the weakest cell can reach its safe operating limit under normal driving load even though the dashboard indicates sufficient charge. If this condition is combined with a battery coolant system fault, such as low coolant level or air in the cooling circuit, battery temperatures can rise unevenly and further reduce safe operating margins. To protect the battery and prevent thermal or electrical damage, the system must immediately limit propulsion or enter a reduced-power (“turtle”) mode without driver input. Because these protective actions can occur suddenly and without advance warning, they can restrict acceleration or vehicle speed during ordinary driving conditions such as merging or maintaining highway speed, creating an unexpected loss-of-propulsion safety risk rather than a mere inconvenience. This is equivalent to a faulty fuel gauge for a gasoline car but with more immediate and severe consequences Sudden Power Cutoffs: If a single battery cell's voltage drops below a safe threshold, the Battery Management System (BMS) will shut down the entire pack to prevent permanent damage. This can happen even if the dashboard shows 25% or more remaining, potentially leaving you without power while driving. Loss of Vehicle Control: A sudden shutdown can lead to a loss of power steering and braking assistance, which is hazardous in high-speed or heavytraffic situatio
Description of the Problem: While driving my 2024 Kia EV9, the vehicle suddenly jerked and displayed a “Motor Control System” warning on the dashboard. The Kia Access app showed diagnostic code P0A4100 (MCU_R – Motor Control Unit fault). The issue causes the vehicle to hesitate and feel as if it loses power momentarily while in motion, creating a serious safety risk for me and my children. System/Component: The failure involves the Motor Control Unit (MCU) / electrical drivetrain system. The vehicle is available for inspection upon request. Safety Risk: The vehicle’s jerking and power fluctuation make it unsafe to drive in traffic, especially with children on board. It gives the sensation of being rear-ended and raises concern of potential stalling or loss of propulsion. Reproduction and Dealer Confirmation: The problem was reported to Sons Kia in McDonough, GA. The dealership initially inspected the vehicle on October 24, 2025, and returned it on [XXX], claiming the issue was addressed. However, the same warning and behavior reappeared less than 24 hours later ([XXX]). Inspections: The vehicle has been inspected by the Kia dealership service department. No outside parties (police or insurance) have inspected it yet. Warnings/Symptoms: The first warning appeared on [XXX], with the “Motor Control System” dashboard message and a corresponding alert in the Kia Access app. The issue continues to recur despite service. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)
When driving between 20-40 mph and hitting a rough patch of road, pothole, expansion joint, or uneven pavement, the vehicle sometimes heavily sways left to right. It takes one to two seconds to stabilize after the swaying. My wife and I both experience it at different times - we say it "feels like a wheel is falling off" because it's so disorienting and concerning. It often happens unexpectedly with road surface that doesn't actually appear to be all that bad. The rear end feels particularly unstable, like the suspension can't control the vehicle's weight when it's swaying. It's not a small vibration - it's a pronounced side-to-side oscillation. Sometimes I need to make steering corrections just to keep the vehicle centered in the lane. This unpredictable swaying makes us nervous about driving in adverse weather conditions. We can't trust how the vehicle will react when hitting unavoidable bumps and road imperfections. We have noticed it over 50mph at times but it is much more rare at this speed -- though when it happens at this speed it is obviously much more concerning. At higher speeds the swaying does not seem as pronounced / dangerous as at lower speeds, thankfully. After researching online, I discovered many other EV9 owners reporting identical suspension problems. Multiple complaints describe the same lateral swaying, porpoising, and bump-steer behavior that we are experiencing. This appears to be particularly common among GT-Line models. The consistency of these reports suggests this is a systemic defect affecting multiple vehicles, not an isolated incident with our particular vehicle. We have 11k miles on the vehicle now and this has been consistently happening since 200-300 miles brand new. We've mentioned to a dealer but it is very difficult to reproduce as it seems to happen randomly, even over the same stretch of rough road.
The DC charger plug won’t release after charge was completed. Waiting 3.5 for the tech to forcefully unplug and broke the charger pins. This is a known issue with Kia vehicles and costly repairs.
2024 Kia EV9 has destroyed two complete tire sets in 4 months (October 2025, January 2026) despite two professional alignments (May 2025, October 2025). Dealer service manager admitted on recorded call (1/7/26) seeing multiple EV9s "under 18,000 miles" destroy tires, confirming fleet-wide pattern. Multiple owner forums report the exact same issue. MY CASE: - [XXX] (11,860 mi): Steering misalignment, independent shop (Town Fair Tire) confirmed alignment issue - June 2025 - Vehicle inspected and tires rotated by authorized Kia dealership - Berlin City in Vermont - October 2025 (22,736 mi): Left rear BLOWOUT while driving. ALL FOUR OEM tires (113 load rating - "correct" per Kia) worn to bare threads. Tires had ~18,000 miles on them. October 2025: Snow tires were installed in October 2025, with 10/32" tread (were driven ~4,000 miles the previous winter). Dealer performed alignment, no before/after documentation provided [XXX] (25,486 mi): Same winter tires that drove 4,000 mi perfectly first winter destroyed in 2,700 mi second winter DEFINITIVE PROOF - Multi-Point Inspection (1/5/26): On 1/5/2026: Rear Left: 1/32" tread (destroyed in 2,700 miles from Oct. '25 to Jan. '26) Rear Right: 1/32" tread (destroyed in 2,700 miles from Oct. '25 to Jan. '26) Front Left: 10/32" tread Front Right: 10/32" tread Rear-only catastrophic wear on AWD vehicle is definitive proof of rear suspension or alignment defect. If load rating or overloading were the cause, all four tires would wear equally. SAFETY HAZARDS: Left rear tire BLOWOUT October 2025 while driving at 35 mph. Service Manager Pat (1/7/26): "Under 18,000 miles I've seen" other EV9s destroy tires - CONFIRMS FLEET-WIDE PATTERN Service Manager: "I can't tell you why the alignment is out" - CANNOT DIAGNOSE ROOT CAUSE Service Advisor John (1/6/26): "There's got to be an elephant in the room somewhere" - ADMITS UNDIAGNOSED DEFECT EXISTS Service Advisor: "I wouldn't feel safe putting my guys in it" INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)
Battery Management System - Critical EV Battery Warning This vehicle has been back to the dealership for repairs multiple times. Including needing to swap battery cells and wires around.
We were rear ended on the freeway by a vehicle going 75 mph. The impact pushed us into the vehicle in front of us.The airbags were deployed but the front and rear passenger seat belts did not lock. My husband flew forward onto the dashboard and cracked the windshield. My daughter who was behind him flew forward into the back of the passenger seat. They both suffered injuries as a result. The vehicle was deemed a total loss by our insurance company..We have some pictures and video. As of now the vehicle is in the ownership of the insurance company on their storage lot.
Received the following warning on 8/16 with 6987 miles on the car: Critical EV Battery Warning Your EV Battery has a critical issue. Contact Roadside Assistance as soon as possible. Car has been in the dealership for a week with "no estimated repair timeline" due to the battery cells failing. Car will not fully charge and is at risk of suddenly losing power and stopping, per the dealer.
While driving, the vehicle suddenly lost power and could not accelerate normally. The speed dropped and got stuck around 12–25 mph even when pressing the accelerator. This happened multiple times, usually during hot daytime conditions. It created a serious safety risk, and one time another car almost hit me from behind because my vehicle slowed down so suddenly. The dealer has inspected the car several times but said they could not reproduce the problem. Warning messages such as “Power Limited” appeared on the dashboard when the failure occurred. I also recorded multiple videos of the problem when it happened.
The vehicle was being driven on a highway when it became unresponsive to input from the accelerator pedal and the car's dashboard indicated an electrical system failure. There were no indications of problems with the car before the electrical system failure warning appeared. The car coasted to a stop on the side of the highway, where it was disabled (i.e., it would not shift into drive or reverse). The car was towed to a Kia dealership, where it has been for more than five weeks. The dealership replaced the ICCU but that did not resolve the problem and the car remains non-functional. The Kia dealership is waiting for the delivery of additional backordered electrical system parts to see if they resolve the problems.
The instrument display panel goes black and you can’t see speedometer or hear turn signals etc.
I was driving and the car suddenly gave a number of error messages, and I could not drive above 40 miles an hour on the freeway. This was very unsafe. I had it towed to the dealership and they replaced the ICCU Unit, which appears to be a very common problem with Hyundai/Kia electric vehicles. The ICCU unit does not power the car. It should not have affected the car's performance.
The contact owns a 2024 Kia EV9. The contact stated while driving at an undisclosed speed, the front driver's side seat detached from the frame. Due to the failure, the contact was unable to reach the brake pedal, and almost lost control of the vehicle. In addition, the contact’s mother and minor children were also occupants of the vehicle at the time of the failure. The contact was now concerned about the safety of the vehicle and was afraid to drive the vehicle. The vehicle was taken to the dealer where it was determined that all the seats inside the vehicle had detached from the frame due to fractured bolts. The contact was informed that the bolts needed to be torqued. The vehicle was repaired. The failure first occurred immediately after the vehicle was purchased. The contact stated that the failure reoccurred. The manufacturer was made aware of the failure and a case was filed. The failure mileage was approximately 6.
When traveling at highway speeds the rear suspension is not capable of handling road imperfections. When a pot hole or other disturbance occurs, the rear end of the vehicle violently porpoises and swing back and forth. This is made even more obvious when taking a long sweeping curves at 55 plus. It causes the entire chassis to become very upset. I have never had a car do this.
A rear seatbelt indicator in the dashboard is broken, and it persistently indicates that (a) a passenger is in a rear seat; and (b) the passenger's seatbelt is fastened. This occurs even if a passenger is not in the seat and the passenger's seatbelt is not fastened. It is unclear whether this is strictly an electronic error in the dashboard, or if the seatbelt itself does not function appropriately. Kia has unsuccessfully tried to fix it twice, and the service department reproduced the problem by simply turning on the vehicle and seeing the persistent light. The local Kia service department says they are not trained to fix many EV problems, so corporate has to be involved, but corporate has not provided material assistance. Corporate has been informed in writing several times of the issue, including that this is a material safety issue, particularly since the vehicle is marketed toward families where a seatbelt indicator may be relied upon by drivers, and it's unclear whether this is strictly an electronics issue or a seatbelt functionality issue. Corporate acknowledged receipt of communications in which they were asked if this has been reported to the NHTSA, and they ignored both requests.
I was driving around 60-65 mph on the highway when suddenly a warning alarm went off and the warning light read “stop vehicle and check brake system”. I took my foot off the accelerator and car continued to maintain speed. The power brakes did not work. I put the car into neutral hoping that would slow it down, but it continued to maintain speed. I went into the right lane and put on my hazards. When I had the opportunity to pull into the breakdown lane, I did so and was able to push the brake pedal manually and get the car to stop, and turn it off. When I turned the car back on again, I got the same warnings and alarms. After 5-10 minutes, when I turned the car on, everything seemed to have cleared. I still had the car towed to KIA to investigate the issue.
Vehicle loses accelerator control unless under 30mph. Dealer says they cannot replicate and corporate have decided the vehicle works as designed. I have a video of vehicle losing power and it doesn't help. [XXX] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)
The car battery cells are defective and would not charge above 60%. After faulting on electrical vehicle alarm instrument panel sometimes may show false battery state of charge.
1. When I go over bumps, the car behaves as if it's about to lose control. It porpoises and at one point it feels like you're about to lose control of the vehicle. 2. We have taken the vehicle to the dealer 3+ times now for the same issue. They claim that it's a glitch in the suspension but there is no know fix. At 55+MPH the vehicle starts vibrating and is completely different than issue number 1 above. They've tried balancing the tires but it has not been Successful. We're hoping to claim the car and Lemon through WI.
Vehicle suddenly slowed, with the same force at regenerative braking, to 30mph. Vehicle would not go any faster, changing drive modes, pedal to the floor, anything I tried did not work. Was in the middle of a 55mph road and was suddenly moving much slower than traffic with nowhere to pull off the road No warnings, no lights, nothing to indicate that I saw to show there was an issue. Dealership could not replicate and found no error codes.
What happened? While driving at highway speeds (approximately 60-75 mph), the vehicle exhibits a pronounced up-and-down motion at the rear, commonly referred to as “porpoising.” This motion is especially noticeable when traversing uneven road surfaces or expansion joints. This issue compromises vehicle stability and passenger comfort, posing a potential safety risk during high-speed travel. The problem has been consistently reproducible under similar driving conditions. The vehicle has not yet been inspected by a dealer or independent service center for this specific issue. No warning lights or error messages have appeared on the dashboard in relation to this problem. Component suspected: Rear suspension system (exact cause UNKNOWN). I am willing to have the vehicle inspected upon request.
Steering and hand rest console vibrates above 70 mph, no resolution kia with 6 times visits to dealership
Battery keeps dying despite full charge and multiple jumps. Battery has already been replaced and continues to die even after jumping and leaving on. Car just dies despite it running after a jump.
The car seat system on this device is defective. After placing the shell back on the base and it clicking/latching in place, the shell pops off with using minimal force. The bar with the little plastic arms do not hold the car seat in place. This is extremely dangerous for the child. The arms and bar should be replaced with something that locks in place. In the photos you can see where I circled in red, shows the parts that are unattaching. And the yellow indicates the wear/friction on the plastic surface from it sliding in and out of place. It also rotates of of locked by itself without holding the rotating button. There have been several complaints on this same issue. At this point a recall needs to happen before this car seat kills a child.
1. Repair History and Days Out of Service The vehicle has been at CMA Colonial Kia dealership since [insert drop-off date], totaling 49 days (and counting) out of service as of 05/13/2025. The sole but critical issue is a failed high-voltage battery, which the dealership and Kia confirmed must be fully replaced. This is the first repair attempt, but the car has remained unusable for over a month. 2. Substantial Impairment to Use, Value, and Safety The failure of the high-voltage battery in an electric vehicle renders it completely inoperable, with no capability to drive, charge, or function. This significantly impairs the use, safety, and value of the vehicle: Use: The car cannot be driven at all. Safety: Battery failure in an EV represents a major system defect with fire and high-voltage risks. Value: A brand-new EV with major battery failure has diminished resale value and buyer confidence. 3. Eligibility Under Virginia Lemon Law Under the Virginia Motor Vehicle Warranty Enforcement Act (Lemon Law): A vehicle qualifies if it is out of service for 30 or more calendar days for warranty repairs within the first 18 months or 18,000 miles. My EV9 has been out of service for 49+ days, meets mileage and time limits, and involves a major system failure. Therefore, my vehicle qualifies for relief under the statute. 4. Issues for the Arbitrator to Address The vehicle meets Virginia Lemon Law criteria due to prolonged inoperability for a substantial defect. Kia has not provided a comparable loaner or timely resolution. The vehicle poses safety concerns due to failed propulsion battery. 5. Desired Resolution I am requesting a full repurchase (buyback) of the vehicle, including: Full reimbursement of the purchase price (down payment, monthly payments made, taxes, fees). Any towing or rental expenses incurred. Cancellation of the finance agreement if applicable.
At least one cell of the ev battery is defective and the battery will not charge. The dealer determined that it is unsafe to drive. We are pending repairs and under warranty for over 40 days now and Kia can provide de no estimate for when the car will be repaired.
The windshield wipers could not complete full return to starting position due to wet snow. This caused a shuddering noise as the mechanism driving the wipers continued to try to complete its motion. Then an electrical burning smell emanated through the car.
We heard a grinding sound from rear of vehicle while driving into a park lot. Checked road and vehicle to see if there was any damage or objects hit, there were not. Shortly after driving a few miles a BMS warning was showing and we called Kia roadside assistance. They insisted on towing the car but we waited until next day so we could secure a rental. The short drive to the rental agency now gave us 4 more errors regarding “check 4WD/AWD” and the code was given as “MCU_R” to check the rear motor control units. All were listed as “P1Axxxx” errors. During this time, electronics in the car did not work well, vehicle did not want to shift into gears and acceleration was noticeably degraded. Car is at dealership being worked on now.
Snow accumulates under wiper blades and then ice sticks to the wipers themselves. Big chunks of ice form on blades so that wipers do not clear snow/water off of windshield. Impossible to see while driving when this occurs in snowy conditions. Defrost setting on HVAC is not enough to melt ice so must be manually removed. No reference in user manual or from KIA on how to manage.
The contact owned a 2024 Kia EV9. The contact stated while driving at an undisclosed speed, several warning lights illuminated, and the vehicle lost automotive power. The vehicle was towed to the dealer, where it was diagnosed with a failed rear inverter. The contact was informed that the rear inverter needed to be replaced. The vehicle was repaired. The failure reoccurred. The vehicle was towed back to the dealer where it was diagnosed with a failed rear inverter again. The contact was informed that the rear inverter needed to be replaced. The vehicle was repaired. The failure reoccurred. The contact stated that while driving at an undisclosed speed, several unknown warning lights illuminated, and the vehicle lost motive power. In addition, the contact noticed smoke exiting from the rear of the vehicle. The vehicle was driven to the shoulder of the road. The local fire department arrived and extinguished the fire. The contact was unofficially informed that the fire seemed to have started from the rear of the vehicle. The contact stated that the replacement of the rear inverted was performed three times prior to the fire. The last replacement of the rear inverter was performed just a few days prior to the fire. The manufacturer was made aware of the failure, and a case was filed. In addition, the contact stated that prior to the vehicle fire, the contact was in negotiations regarding the vehicle's back. The failure mileage was approximately 10,600.
All of a sudden the EV battery management system warning light is on and it suggest I do not drive it until fixed. This was after my entire screen went out, where I could not see the speed I was going or use turn signals. Very unsafe
Certain ADAS features have disengaged at least six times in the last year. While traveling at greater than 55 mph vehicle disengages cruise control and reports numerous warning indicators on dashboard including ADAS forward features such as collision warning and automatic braking indicators. I also noted lane management/steering also seemed to disengage when this has occurred during highway curve management. It is difficult to evaluate the full range of loss as the dashboard warnings are numerous and change over the next few minutes. It is also unsafe to secure good photographic evidence when traveling alone, though with assistance some imagery was recently captured. The sudden loss of speed and directional control assistance in multi-lane urban traffic was alarming but managed OK by alert driving. The manufacturer's dealer reported they could do nothing after one of the first occurrences. They said there were not 'codes' registered and not reports on file. The loss of systems usually cleared up within a few miles for the first instances. The most recent case persisted for several hours and several vehicle off/restart cycles. During this time the dashboard indicators suggested some failures resolved but some remained. This last case cleared over-night upon morning restart. A failure/warning was noted in the Kia Connect online app while the car still reported a problem. There were no prior indications before the sudden systems failure. All of these cases initially occurred on a section of road within about 1/2 mile of the same place. It involves a significant curve on an urban interstate interchanged. Sometimes the failures occur just before, or during, and at the end of the curve.
My car started to not charge for more than 10mn at a time. It also showed an error message about the electrical system. I have dropped off my car at the dealership on march 3rd. No information since
Vehicle range went from 320+ miles on a 100% charge to just 100 miles on 100% charge. Looks to be a bad battery cell or battery itself. No warning lights of any kind. Just super degraded range. Vehicle is new and has around 5800 miles. Dealer doesn't have techs to work on batteries, so they are having to play telephone game with Kia tech line in Korea.
When driving over uneven surfaces, like typical urban and suburban roads and highways, the rear end seems so wobble and slide. It feels like the heavy EV is about to break traction and slide sideways. It porpoises as well. It makes every passengers heart skip a beat. These are on dry roads, obeying speed limits, with the stock tires. An expansion joint, seam of two types of road material, utility cover or other irregularities can cause this. Easily reproduced but dealers or Kia America don’t seem to believe or care.
At highway speeds, the SUV experiences significant body sway when hitting a bump, causing it to rock side to side in an unsettling manner. This issue makes the vehicle feel unstable and nervous, requiring the driver to slow down to regain control. The excessive body roll presents a potential safety hazard, as it could lead to a loss of control in certain conditions. Based on my research, this problem appears to affect the GT-Line model more than others. A solution is urgently needed to address this serious handling issue, but so far, Kia Corporation has done nothing to resolve it.
The Kia EV9 has a defect in its suspension that causes the rear end to "bump-steer" over imperfections in the road, giving the driver a scary sensation of losing control. For example, driving on the highway in a corner, if you hit an expansion joint or pothole, the vehicle will require a quick steering correction while the vehicle's rear-end enters what feels like an oversteer condition. This reduces confidence in the vehicle's ability to hold the road. In poor weather like snow, it's impossible to discern whether the vehicle's rear end is sliding, or if it's the bump-steer condition occurring. My wife refuses to drive the car in inclement weather, despite the vehicle being fitted with snow tires. It is a very scary feeling. Kia has yet to issue a TSB for this on 2024 and 2025 model year vehicles, and it seems that all trim levels are affected after discussing with the community on forums. Even after dialing in the alignment perfectly to manufacturer specifications, the issue does not resolve.
Battery cell in electric vehicle failed after 6 months of ownership.
3 weeks after picking up our Kia EV9, I noticed a thunking sound from the passenger side front tire. When we reached home, we opened the car cover and noticed that the lug nut had come off and was rattling behind the cover. We called the dealership and the asked us to bring the car in. Since we didn't want to drive it, we bought a torque wrench and tightened it ourselves, after getting the information from the dealership on how much to tighten it. We also noticed that all the lug nuts were under torqued and the driver side lug nut was very loose. I also read multiple reports on online forums (Reddit) about new Kia EV9 wheels flying off on the highway.
Data synced from NHTSA on May 4, 2026