2024 Kia EV9: adaptive cruise control problems

Filed Mar 17, 2025 · Driver assistance · TN

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.

Filed Dec 30, 2024 · Acceleration, Driver assistance · WA

Vehicles accelerates aggressively to no limit (95+) when adaptive cruise control is set and there is no leading vehicle within following range.

Filed Dec 4, 2024 · Driver assistance, Electrical · IL

My EV9 lunged forward very abruptly when I was parking. I had to slam on the brakes before my vehicle crashed into the building in front of me. My vehicle also lost the signal (blank screen while driving ) the same day my car lunged forward. I could not tell how fast or slow I was going. I pulled over and restarted the vehicle or and my screen came back on. I began driving for maybe 4 minutes and the screen went completely black except for the “lost signal” alert in red. My vehicle has also lost the ability to use adaptive cruise control while driving my vehicle. I pulled over and when I restarted the vehicle i was able to use it again.

Filed Oct 28, 2024 · Electrical · 500 miles · MI

The contact owns a 2024 Kia EV9. The contact stated while driving at highway speeds with the cruise control activated, the instrument panel went blank. The contact stated that when the instrument panel returned to normal operation, the vehicle quickly accelerated without the accelerator pedal being depressed. The contact immediately deactivated the cruise control and the vehicle returned to normal operation. Since the initial instrument panel failure, the failure persisted while driving at various speeds. The contact stated that the instrument panel intermittently flashed on and off and occasionally there were several warning lights illuminated after the instrument panel regained normal function. The manufacturer was notified of the failure and the contact was provided a case number. The contact was also informed by the manufacturer that the vehicle was not included in the federal safety agency Campaign Number: 24V757000 (Electrical System) which was linked to the failure. The vehicle was not repaired. The failure mileage was approximately 500.

Filed Oct 22, 2024 · Driver assistance · CA

When the vehicle is in adaptive cruise mode and tracking a lane with Lane Keeping Assistance, if the lines on the road widen beyond a certain point (perhaps 3-5ft wider than a normal lane), the vehicle will suddenly stop maintaining the lane with no audio warning or significant visual indicator. As the driver should always be paying attention, it is the lack of an audio warning that is the major concern. On a straight road, the vehicle will slowly begin to drift out of the lane. However, when this happens on a curve, the vehicle will suddenly stop steering around the corner, and throw the vehicle out of the lane in a dangerous way. This happens all the time when the lane widens, which I often experience on newer freeways with wider lanes. If a fix can't be provided for the system shutting down, it at least needs an audio warning indicator so the driver is alerted to what is happening and can safely take control.

Filed Oct 11, 2024 · Acceleration, Driver assistance · CA

I am reporting a critical safety issue with my KIA EV9. The vehicle's information screen, which displays essential driving data such as vehicle speed, cruise control status, advanced driving system indicators, lights, and signals, has malfunctioned. On two separate occasions, the screen went completely black while driving, leaving all critical driving information inaccessible. This malfunction poses a significant risk to my safety and the safety of others, as I was unable to monitor the vehicle’s speed or system status while driving. Availability for Inspection: The malfunctioning component (information screen/system) is available for inspection upon request. Safety Risk: This issue compromised my ability to safely operate the vehicle. Without visibility of the speedometer, driving system indicators, or signal lights, I was unable to monitor crucial driving functions. This increased the risk of speeding unknowingly and reduced my ability to respond to surrounding traffic, creating a dangerous situation on the road. Reproduction of the Problem: The issue has occurred twice. While I have not yet had it reproduced or confirmed by a dealer or service center, I am aware that other KIA EV9 owners have reported the same issue, indicating it is not an isolated case. Inspection by Others: To date, the vehicle has not been inspected by KIA, law enforcement, insurance representatives, or other authorities regard Please find below links to forums and websites where other KIA EV9 shared about this issue. 1- [XXX] - [XXX] - [XXX] - [XXX] Here is the video of the incident. [XXX] Thank you. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Filed Oct 9, 2024 · Acceleration, Driver assistance · CA

The screen that shows speed, miles remaining, etc. went black on a long trip. All of the automated cruise control, lane keeping, etc. are also housed in that screen. The blinkers would not work, I had no idea how fast I was going at any time which is unsafe. I could not see how much range is left on the vehicle which I imagine could lead the car just dying while driving or going into the turtle mode with too low of a charge. Also, the adaptive cruise control was not working properly and at one point when a car in front of me moved over out of my lane, the car accelerated hard and brought me up to about what was probably about 90-100mph, not even close to where it was set earlier. 2 hour drive without screen or these safety features and the screen still is not back. I will be taking it into the dealership. This is the second time this screen went out but luckily the first time I was not on a 2 hour work trip/drive and was able to just leave the car in my driveway and use another vehicle.

Filed Apr 4, 2024 · Acceleration, Driver assistance · WA

While using adaptive cruise control on the highway, my car almost rear ended the car in front of me when it surged ahead around a slight curve in the road. I was travelling approximately 5mph below the set cruise speed due to the traffic ahead. It appears that my vehicle lost radar sight of the car in front and tried to get back up to the set speed. This has happened on multiple occasions now.