2024 Kia EV9 Suspension Problems

Mileage when the problem started

Owner reports

Selected complaints filed with NHTSA by 2024 Kia EV9 owners, lightly cleaned up (personal details are redacted by NHTSA).

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 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. …

When you're at speeds greater than 15mph and hit a bump or encounter a surface irregularity (pothole, expansion joint, etc.), the Kia EV9 GT Line goes into a porpoising sway, causing the entire chassis to become unsettled. The swaying is much more pronounced when only one side of the encounters the irregularity, or if the car is not perfectly perpendicular to the irregularity and the left and right wheels pass over the irregularity at different times. The effect is especially noticeable in the rear. This unsettling 'swaying' increases with speed and happens both while driving straight and through corners. The rear end feels as though it's hopping or skipping from side to side. Out of all the vehicles I've driven-and I've driven quite a few-I've never experienced anything like this. …

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. …

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. …

when driving this car at highway speeds, if you hit any sort of obstacle, you are going to experience an extreme amount of sloshing in the back of your car. This same experience occurs when you are going down a hill, around a bend, and hit a pothole or any sort of irregularities in the road surface. When this sloshing occurs, it feels as though the back end of the car is going to whip around, causing you go to into an uncontrolled spin. To put this into perspective, I had to replace my rear tires after 10,000 miles because of how much wear this sloshing introduced to the tires - my front tiers were still at 7/32nds for reference. And we don't drive this think like a bat out of hell... At 10k miles, the alignment was also way out of whack (which the dealer admitted shouldn't have happened with so few miles on it), because of the extreme movements of the car from side to side. …

We've had the vehicle for about six months as my wife's primary car. within the first week of driving the vehicle, she noticed it "hops around" when encountering irregularities in the road surface at highway speeds. After driving it myself, I agree-the vehicle gets unsettled while driving over seams, bumps, or uneven surfaces, even minor ones like raised seams or potholes. This happens and is most noticebale at highway speeds, both while driving straight and through corners, with the rear end feeling like it's skipping, hopping, or "porpoising." Even with small irregulairities in the road the vehicle lightly sways. Tire pressure is set to manufacturer specifications, and there's no noticeable irregular or excessive wear on the tires. When I have spoken to the dealership about this, they cliam that it's perfectly normal becuase it's a heavy vehicle (referencing a 3/4 ton pickup). …

Vehicle experiences steering vibration when at highway speeds (above 65mph). I have brought the vehicle in for service four times and the issue still returned after multiple alignments, rotations, and road force balances. The local service techs are working with Kia, but it has currently been in the shop for 24 days with no resolution. According to the service advisor, tires have been inspected and even swapped with new ones but the problem is still present. I am concerned with the safety of the vehicle because it creates issues with control at high speeds which could result in an accident. Even at low speeds, the rear end fishtails over small bumps creating a temporary loss of control. I am unsure if the two are related. I can provide Kia service order numbers and Kia customer care case number upon request. …

The manufacturer failed to align the vehicle at all prior to leaving the factory. The failed parts all have to do with the alignment. My safety was put at risk because of the persistent pull while driving, shaking while driving, instability at high speeds, and the fact that the tires are now damaged due to the alignment issues. The dealer kept the vehicle for over 60 days, and was able to rectify part of the alignment issues, but there are still areas that they are unable or unwilling to fix, as shown to them by the alignment machine. The vehicle has been inspect by a certified Kia dealership, as it was there for over 60 days. The issues were the shaking of the vehicle, the pull, the instability at high speeds, and the damage caused to the tires. It appear upon first taking the car home after purchase. …

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.

Suspension complaints in other EV9 years