Hyundai Santa Fe adaptive cruise problems

Filed Nov 6, 2026 · Driver assistance · IN

Since delivery in May 2024, the driver-assistance systems on my 2024 Santa Fe malfunction in rain and snow at highway speeds, around 65 mph. The cameras report being blocked and a cascade of alerts goes off: warnings to put my hands on the wheel when they already are, "take a break" driver-attention warnings, and "conditions not met" messages. Smart cruise control shuts off without warning, and lane assist loses the lines. About two months ago (around September 2026), driving in pouring rain, the car flashed a message that it was shutting down while I was on the road. The date entered is approximate. The driver-attention camera also gives constant false warnings in normal driving: when wearing sunglasses, with an arm resting on top of the steering wheel, or with dust on the camera. Both drivers in our household experience this. Sudden alarms and systems shutting off at highway speed in bad weather are distracting and dangerous. I reported this in writing to the dealer in February 2025, saying the safety features had nearly caused numerous accidents, especially in bad weather. The dealer offered to show me how to turn the features off, but that never happened, and nothing has been repaired. My daughters were usually in the car when these events happened.

Filed Oct 30, 2026 · Acceleration, Driver assistance · CA

On three occasions while Highway Driving Assist / Smart Cruise Control was engaged, my 2025 Hyundai Santa Fe Hybrid did not slow down for the vehicle ahead and continued at its set speed. I had to brake manually to avoid a collision. Dates and conditions: UNKNOWN exact dates. All three occurred within the past several weeks. Warning lamps or messages: UNKNOWN. I did not notice a warning before the system failed to slow down. Inspection: The vehicle has not yet been inspected for this problem. I have reported it to Westlake Hyundai in Thousand Oaks, CA, and it has a service appointment scheduled. It has not been inspected by the manufacturer, police, or insurance. The vehicle also has other ongoing issues, including the brake pedal sticking at startup, two no-start events requiring roadside assistance, and intermittent electrical problems. I am concerned this is a safety defect that could cause a rear-end collision.

Filed Sep 23, 2026 · Acceleration, Brakes · NC

While traveling on [XXX] from [XXX] to [XXX] XXX, I initiated the adaptive cruise control. While engaged, with no other vehicles or other impediments on the roadway in front of me, the emergency braking system engaged and attempted to stop the vehicle. The first time this happened, I pressed the accelerator which disengaged the braking action. Later I reengaged the cruise control and after a few minutes, with no traffic near the vehicle, the same action happened again. I disengaged the adaptive cruise control and drove the vehicle manually with no further problems. I have scheduled an examination of the vehicle with a Hyundai dealer but have read of 25-30 similar issues with no resolution by Hyundai. This is a safety issue that will eventually cause an accident and needs to be resolved. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Filed Aug 23, 2026 · Brakes · FL

Brake Lights Stay, On ESC OFF Light Illuminated, Cruise Control Won't Engage, Unable to Shift Out of Park. Fuse had to be pulled because the battery was going dead due to lights not turning off. Its doing the same thing that is outlined in this recall (the federal safety agency Campaign ID: 13V113000)

Filed Aug 18, 2026 · Steering · VA

Multiple occasions of the ADAS lane centering system operating unsafely. The worst one was on a gentle left-hand curve on a concrete surfaced bridge at night. The system allowed the vehicle to slowly drift to the outside of the lane. When it was fairly close to the white line, it jerked the wheel back to the left and then released the steering to my control while pointed hard into the oncoming lane. It will do similarly during the day when approaching a center turn lane on the highway. Sometimes it will decide that it should be in the turn lane, will make a rapid input, and then return control to me, now pointed at the oncoming lane. When the vehicle returns control to me, it indicates it by making the steering wheel and lines in the HUD grey, no chime, no warning icon, just green to grey and release the wheel in whatever direction it's pointing. It also sometimes slows drastically for vehicles that have exited the highway when on cruise control or applies hard braking for vehicles in the other lane while in a curve on a hill. There are no lights or malfunction warnings and the vehicle self-diagnostic says everything is operating correctly.

Filed Jul 7, 2026 · Acceleration, Driver assistance · 130,000 miles · TX

The contact owns a 2017 Hyundai Santa Fe. The contact stated that while driving approximately 15 MPH on the interstate, the contact heard an abnormal tumbling sound coming from underneath the vehicle. The contact noticed an unknown object had detached from the vehicle. Upon inspection, the contact determined that the detached component was the radar sensor. The Automatic Emergency Braking (AEB) system and the adaptive cruise control became inoperative. The contact stated that the vehicle had not been involved in a crash prior to the failure. The vehicle was taken to an independent mechanic for inspection. The mechanic advised that the radar sensor could not be reattached and stated the failure was possibly caused by a crash. The local dealer was contacted, but the vehicle was neither diagnosed nor repaired. The manufacturer was not informed of the failure. The failure mileage was approximately 130,000.

Filed Jul 7, 2026 · Driver assistance, Electrical · IL

I have had the vehicle in 4 times for check forward attendition warning system light keeps coming on. The first time they replaced the front camera. The situation came back after I was using the cruise control on a express way. Did not do it do it on the road but as soon as you stopped and turned the vehicle off the vehicle check forward attention warning system would come on and off and the only way to shut it off was to stop from more than 20 minutes and it would reset. Took the vehicle back 3 times and they could replicate so there was nothing they could do. The issue came back today. The check forward attention warning system light keeps going on and off. We stopped and let the vehicle sit and upon restarting the check forward attention did not reset . This time the vehicle lost all volume from the dash board. You could recieve phone but no volume. No radio volume. All the safety features that Bing are not working. Check the set up and the volume had a red 🔺️ next to the volume. 4 times into the shop for the same issur

Filed Jun 25, 2026 · Driver assistance · FL

-On [XXX] I was drivng on a highway while using cruise control. The car suddenly applied the brakes hard. I tried 4 times to use the accelrator and each time the brakes were applied hard again. -The car behind me laid on its horn and managed to shift to another lane thereby avoiding a rear end collison. -Fortunately I was driving in an outside lane and got the car to the shoulder. -I turned the engine off and then started the car again. -There were no warning lamps or messages that I can recall. It happened quickly. -This incident came very close to causing at least vehicle damage and possibly physical harm to the occupants of my car and the car behind me. -I took my car to the dealership which is Crown Hyndai in St. Petersburg, Florida. They were unable to recreate the problem so the issue is still outstanding. -To prevent future incidents I no longer use cruise control and turn off the FCA system when I start the car. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Filed Jun 21, 2026 · Driver assistance, Electrical · PA

I have videos of these two incidents and others that I could not upload. While driving on the PA Turnpike at 4:25PM on 5/22/26 75 mph my accelerator pedal stopped responding, my front collision warning light, engine, EPB, and numerous other lights came on across my dashboard despite there being no contact with any object and my speed rapidly dropped. The front camera came on as if there was an object too close. I was in the middle lane. While I was trying to move to the shoulder there were tractor trailers behind me and to my right that began flashing their lights because my speed drastically dropped and was unable to safely stay with the flow of traffic in the heavy rain. While still in Drive car started changing through notices on my digital screen "Check Blind-Spot Safety system" "Check Forward Safety system" with the car crash icon, and "Check Driver Attention Warning (DAW) system." Then I began trying to press the accelerator pedal again and the car would not move at all but the tachometer was going to 2x1000rpm. When I turned the car off and turned it back on again the engine light was still on, but the accelerator pedal was responsive. About an hour later when the tow truck driver from AAA attempted to drive the car on to the flat bed the accelerator pedal was unresponsive again. This was at least the fifth time my vehicle had lost propulsion without warning. Every prior time Bowser Hyundai had different reasons for the failure, made a repair, and said it was safe to drive. Another incident occurred 4/7/2026 using cruise control at 84 mph when the car unexpectedly lost propulsion. The accelerator was again unresponsive, I was on the turnpike with two children in the vehicle. I steered towards the shoulder and the car slowed to a stop. After that incident, Bowser Hyundai replaced the transmission on the car. They notified me on June 18 that they believe they fixed the problem again but I don't feel the vehicle is safe for my family and worry it will be deadly

Filed Jun 2, 2026 · Driver assistance · NE

Hyundai - DAW - Driver Attention Warning / Forward Attention Warning System This issue warrants immediate consideration for a recall. Despite wearing glasses, sunglasses, or no glasses, the problem persists. I occasional do remove my glasses while driving, and the warning continues to sound. This occurs regardless of the time of day, weather conditions, or whether I am sitting upright or reclining. The warning randomly activates and deactivates, sometimes without any intervention. Occasionally, I simply allow the warning to sound without taking any action, and it remains active for a few seconds or until it triggers a warning that the system will be turned off, at which point it deactivates. I have attempted various troubleshooting methods, such as keeping my eyes open, adjusting my seating position, wearing and removing my glasses, and tilting them to minimize glare. None of these methods have proven effective in preventing the warning from activating or in making it deactivate. This is a persistent problem. Hyundai dealerships initially informed me that the warning might be an annoyance and their response was to simply refrain from using it. However, if a basic feature like cruise control in a 2024 & 2025 model is rendered unusable due to a design flaw (which this certainly is), it constitutes a clear violation of safety standards and should be addressed through a recall. The incessant alerts are highly disruptive and can be quite frustrating. For instance, driving with an arm in the 12 o’clock position triggers a warning, while wearing polarized sunglasses also results in an alert. The presence of a setting to disable the warning is a welcome feature, but the system’s persistent alerts can be overwhelming. The alerts continue even after taking a break. It is distracting and a safety hazard. Drivers should be able to adjust the sensitivity of the feature to turn off this feature. Currently, there is no way to disable or temporarily disable this feature.