KIA EV9 Reliability by YearBest & worst years, problems & recalls — NHTSA data

Vehicle consistently vibrates at highway speeds, feels like a driveline vibration, wheel, tire or suspension issue. Almost feels like a tire is wobbling.

Vehicle Information: 2025 Kia EV9 GT-Line AWD VIN: [XXX] Mileage: ~16,000 miles Component/Part Affected: Wheel studs / Wheel attachment system Summary: Multiple wheel studs (3 on one wheel, 2 on another) were found stripped/damaged on my [XXX] Kia EV9, making the vehicle unsafe to drive. This is a critical safety issue, as wheels cannot be properly secured and could detach while driving. Details: •The vehicle has been serviced exclusively at Kia dealerships (Winn Kia Fremont and Putnam Kia Burlingame, CA). •Putnam Kia Burlingame visits (7/31/25 and 8/29/25) involved seat motor repairs, multi-point inspections, and tire-pressure checks only. No wheel removal or rotation occurred there as per their confirmation. •Kia Fremont has performed all wheel/tire-related services and recently discovered the damage. •Photos show damage across two wheels (3 studs stripped on one, 2 on another). This suggests a consistent pattern of improper service (over-torquing or cross-threading), not isolated wear. Safety Concern: The vehicle is currently undriveable. Multiple compromised studs across two wheels increase the likelihood of wheel detachment while driving — posing a severe hazard to me, my family, and other motorists. Manufacturer Response So Far: •Kia Fremont has ordered replacement studs but says parts will take ~7 days. •I am seeking Kia’s confirmation that all repairs and a rental vehicle will be covered under warranty. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Within six months of purchase, the power steering on my 2025 Kia EV9 failed while I was driving, creating a sudden and dangerous loss of steering control. I brought the vehicle to the Kia dealership for repair, but it was returned to me without the problem being resolved. On the very first drive after service, the power steering failed again. This is a recurring safety defect that poses a serious risk to me, my family, and other drivers. The vehicle is unsafe to operate until the root cause is identified and repaired properly.

We just left the dealership in our new 2026 Kia EV 9 with 14 miles on it and as we were driving home the passenger windshield wiper started to make a loud banging sound when it would return to it ‘a starting position. We turned the wipers off and then turned them back on just to have the passenger one go half way a few times and then stopped working altogether. We live in Vero Beach Florida and this took place at [XXX]. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

The Kia EV9 Wind I bought several days ago worked fine for a couple of days with a slight vibration, but yesterday I experienced 3 incidents. 1. As I was coming to a full stop at a stop sign, there was a mild grinding noise from the rear of the vehicle. 2. I continued for 100 yards and came to a stop light and the car made a louder grinding sound of gears grinding as I was coming to a full braking stop. 3. I continued for about 1/2 mile. As I was coming to a stop at a stop light, there was a very loud grinding sound from the back of the car, like gears were being stripped, and the vehicle came to a full stop. At that point I was in the middle lane of a busy 3 lane road. I jumped out to inspect and saw nothing. I continued through the intersection and immediately pulled into a parking lot. I got out to inspect and there was a very strong burning smell coming from the driver side rear wheel well. I did not smell it on the passenger side rear wheel well. I had it towed to the nearby Kia dealership, and left it. This morning the dealership reported the initial diagnosis showed that the emergency brakes were activated while I was driving and they would report back later today on further diagnosis. They said the brake pads and rotors may need to be replaced and they would need to determine why the emergency brakes activated while I was driving. When I told them I was equally concerned about the grinding sound and the possibility of stripped gears, they replied that Kia Corporate does not pay them to explore potential problems that are not visible or obvious. My main concern is that there may be stripped gears to be replaced in addition to a software or other fix to prevent the emergency brakes from activating while driving. They also reported to me that there were 2 notifications with updates that had not been performed. One was for a software update for the rear powertrain and the other was for a sunroof issue and they would perform both.

Took my 4-month old Kia EV9 to a tire shop b/c I heard a rattling on the right side at low speed. Turns out both of the locking lug nuts had popped out of the front and rear hubs on the right side. Seems like someone at the port install facility in West Point Georgia didn't use the correct tools or torque settings. Turns out this is a known issue among a few customers per this Reddit thread: [XXX] I notified Kia CS. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Beginning sometime after purchase, our 2024 Kia EV9 (VIN: [XXX]) developed a recurring failure of the multimedia display system (head unit). The screen goes completely dark after approximately 5 minutes of drive time and only restores after a full vehicle restart. This failure occurred approximately 10 to 14 times before we brought the vehicle in for service. Critically, when the multimedia screen goes dark, the rearview camera display is also rendered completely unavailable. As the rearview camera is federally mandated safety equipment under FMVSS 111, this failure left us unable to use the camera while backing up on multiple occasions, creating a serious safety hazard to pedestrians, cyclists, and other vehicles behind our car. The vehicle was dropped off at Grand Kia (Wheat Ridge, CO) on XXX for diagnosis. The service technician disassembled and reassembled the head unit and contacted Kia Techline for an action plan. We were told a replacement part was on order. As of the date of this complaint, the vehicle has been out of service for over six weeks with no confirmed repair timeline and minimal communication from the dealer or Kia America. This is our second significant warranty-related repair issue with this vehicle. We are filing this complaint to create a federal record of a safety defect involving the loss of federally mandated rearview camera functionality, and to request that NHTSA investigate whether this failure pattern exists across other 2024 Kia EV9 vehicles. Requested Action: Investigation of potential safety defect involving multimedia/head unit failure causing loss of rearview camera in 2024 Kia EV9 vehicles. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

The contact owns a 2024 Kia EV9. The contact stated that while attempting to release the rear seat belt to install a child safety seat, a significant amount of effort was required. The contact stated that after struggling with the seat belts over several months of use, the seat belt became fully jammed and no longer was able to be extended. The dealer was notified of the failure on several occasions. The vehicle was not repaired. The manufacturer was notified of the failure. The failure mileage was 25,600.

When I started the car up, I noticed a little bit of chattering on the brake pedal, which seemed very unusual. I drove the car forward a little bit and then all of a sudden, all these lights displays and stop vehicle and check brake system now message showed up. The car was very sluggish to drive and had almost no brake pressure. I was able to drive it out of the parking lot (slowly and carefully). When I called a tow truck, I left the vehicle off for about 20 or 30 minutes, and then when I turned it back on, everything was fine no error messages and I had plenty of brake pressure. Post dealership update: They confirmed the issue and DTC code. Found that it was a ground wire that had a 3 ohm resistance (something about a “plastic coating” was mentioned in the paperwork!). They replaced the cable via SC360, and I’ve put about 800 miles on it since then with no issues.

For several weeks the car has felt out of balance and I had it in the shop once to be balanced. The balance felt it lasted a very short time. I took the car in today to be checked out and the passenger rear tire couldn’t hold a balance. Mechanic removed tire and the interior sound deadening foam had detached on greater than 50% of the diameter of the tire. This has been widely commented on as a common failure mode for these Hankook tires on EV9 vehicles. I wanted the remaining tires inspected but as they would hold a balance the dealer had no reason to put in the labor of removing and inspecting the foam. 285/45 R21

When making left turn or going over bumps, driver seat pops and feel shifted.

What component or system failed or malfunctioned, and is it available for inspection upon request? Two components failed simultaneously: (1) the rear passenger side tire experienced a catastrophic blowout while traveling at 65 MPH on the highway, and (2) the Tire Pressure Monitoring System (TPMS) failed to detect or warn of any tire pressure abnormality before or after the blowout. Following the blowout, the vehicle’s diagnostics screen displayed “All Systems OK” while the instrument cluster simultaneously showed a “Low Tire Pressure” warning — indicating a TPMS malfunction. The original blown tire has been retained and is available for inspection upon request. All four tires have since been replaced. How was your safety or the safety of others put at risk? A tire blowout at 65 MPH on a highway created an immediate risk, I briefly lost control of the vehicle as it became wobbly and unstable to steer, we were at at risk of collision, or rollover. Two minor children were passengers in the vehicle at the time. The simultaneous TPMS failure provided no advance warning, eliminating any opportunity to safely reduce speed or pull over before the blowout occurred. The vehicle had been in my possession for approximately two-three hours at the time of the incident. Has the problem been reproduced or confirmed by a dealer or independent service center? UNKNOWN Has the vehicle or component been inspected by the manufacturer, police, insurance representatives or others? UNKNOWN Were there any warning lamps, messages or other symptoms of the problem prior to the failure, and when did they first appear? No warning lamps, messages, or symptoms appeared prior to the tire blowout. The TPMS provided zero advance warning. After the blowout had already occurred and the vehicle was stopped on the roadside, the instrument cluster displayed a “Low Tire Pressure” warning. However, simultaneously, the Vehicle Diagnostics screen displayed “All Systems OK” with a green check-mark.

What component or system failed or malfunctioned, and is it available for inspection upon request? Tire Pressure Monitoring System (TPMS) failed to detect or warn of any tire pressure abnormality before or after the blowout. Following the blowout, the vehicle’s diagnostics screen displayed “All Systems OK” while the instrument cluster simultaneously showed a “Low Tire Pressure” warning. How was your safety or the safety of others put at risk? A tire blowout at 65 MPH on a highway created an immediate risk of loss of vehicle control, collision, or rollover. Two minor children were passengers in the vehicle at the time. The simultaneous TPMS failure provided no advance warning, eliminating any opportunity to safely reduce speed or pull over before the blowout occurred. The vehicle had been in my possession for approximately four hours at the time of the incident. Has the problem been reproduced or confirmed by a dealer or independent service center? UNKNOWN Has the vehicle or component been inspected by the manufacturer, police, insurance representatives or others?UNKNOWN Were there any warning lamps, messages or other symptoms of the problem prior to the failure, and when did they first appear? NO

We were driving in the middle lane, going straight approximately 25 MPH. The car lurched and almost flipped. We were able to pull over, the wheel was no longer spinning with the car and the tie rod snapped at a weld point. We could have been killed had we been going faster. My son was thankfully not in the car. I am desperately trying to get the car inspected but the dealership will not unless we pay. There were no warnings, but a whining sound began yesterday and we were on the way to the dealership this morning. Now there are warnings. There have been so many safety issues with this car. I will be filing 2 other reports for the seats.