2022 Hyundai Santa Fe: adaptive cruise control problems

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 Sep 23, 2025 · Acceleration, Driver assistance · LA

Vehicle began to display Front collision avoidance system error/ radar blocked. This also disabled the 'smart' cruise control features. This happened any time the cruise control was engaged and we encountered traffic. The unit was in the dealer's service department for a week, and the front radar module was replaced and reprogrammed under warranty.

Filed Apr 27, 2025 · Acceleration, Driver assistance · FL

I was driving at approximately 65 MPH using the advanced cruise control system. Randomly, the system disengaged and I started getting 2 MIL warnings on my console. MIL warning 1) was "Check Forward Safety System" and 2) warning the advanced cruise control parameters are not met due to warning 1. A few minutes later, I received a message on my Hyundai Blue Link app showing DTC C162078. After researching this DTC, I found that there are hundreds, if not thousands, of other drivers that experienced this same/similar situation -- unexpected loss of advanced safety features and smart cruise control features. In fact, Hyundai published a technical bulletin for another model with the same issue. The loss of these functions places an unexpected safety risk to the driver if this issue occurs when there is other traffic present. My vehicle was involved in a frontal accident once about 1.5 years ago and this issue has never occurred. This is the first instance of this issue since I purchased the vehicle brand new from the dealer.

Filed Jul 3, 2024 · Engine, Fuel system · OK

Was driving on the highway while it was in cruise control and on several occasions when trying to accelerate the vehicle would jerk aggressively and struggle to accelerate. It did this about 3 times on my way to my destination. Took it in and they said they couldn’t find anything wrong with it nor could they replicate the issue. No work was on done on it.

Filed Jun 19, 2024 · Driver assistance · KS

Front radar system continues to not work without having damaged caused. Makes cruise control not work. Forward collision not work, etc.

Filed Mar 24, 2024 · Acceleration, Electrical · OH

Engine light comes on and car starts jerking or when I start the car it does it and jerks and drives 5 mph. Cruise control jerks when using it and the sensors go off for no reason.

Filed Mar 24, 2023 · Acceleration, Driver assistance · MI

Hi Team, Issue 1: unexpected Acceleration: Recently I found that is there is unexpected additional acceleration when I press gas pedal initially after changing gears from P to D. I am setting up an appointment with dealer to report and investigate this issue. My Car has only around 13000 miles on it. This issue was initially observed when one morning when i headed somewhere there is unexpected acceleration when I slightly press gas pedal. Issue 2: The Advanced Driver Assistance Systems (ADAS) doesn't work properly when set to adaptive cruise control. It doesn't slow down /stop when getting close to cars parked at signal specially as slight curvy roads.

Filed Jun 1, 2022 · Acceleration · 2,500 miles · AZ

The contact owns a 2022 Hyundai Santa Fe. The contact stated there was an engineering speed control fault while driving approximately 65 MPH. The contact stated that the smart cruise control rode the brakes while going downhill and destroyed the rotors. There were no warning lights illuminated. The vehicle was taken to the local dealer and to be diagnosed. The dealer turned the rotors; however, the contact stated that if the cruise control was activated, it would destroy the rotors. The manufacturer was notified of the failure. The approximate failure mileage was 2,500.