2020 Hyundai Santa Fe: adaptive cruise control problems

Filed May 28, 2025 · Acceleration, Driver assistance · WI

Frequent intermittent dash warning lights, no speed indicated, no tach indicated, cycles through warnings of safety systems malfunctioning. No lane departure, no adaptive cruise, no cruise, no forward collision warning, no blind spot warning. The disabling of these systems puts all drivers at risk. Dealership replaced front camera and windshield to fix this issue. Not fixed, continues to alarm at random times while driving.

Filed Jun 24, 2023 · Acceleration, Driver assistance · WI

I was driving on an interstate highway at approximately 75 mph. I had cruise control activated. Suddenly the car dramatically slowed down, accompanied by rapid beeping noise. Luckily, there was no one close behind me.

Filed Jun 1, 2023 · Driver assistance · NY

This vehicle has the Accident Avoidance system which is great until it snows or there's a heavy rain then you get lights on the dash and the Accident Avoidance system and cruise control turn off because the sensor gets covered with snow or heavy rain. I spoke with a service technician who said it's a know issue but there are no fixes at this time. What the sense in having a safety system that shuts off when you need it the most in bad weather. Once you clean the snow or ice off the sensor area the lights go out. It happens any speed.

Filed Sep 19, 2022 · Driver assistance · DE

The adaptive cruise control, automatic emergency braking, and forward collision avoidance systems in my SUV have been defective since purchase in June 2019. Hyundai has replaced the radar sensor but the dealer is waiting on a part to calibrate it which has been on indefinite backorder. I have waited over a year to have this issue fixed. I am paying a car payment which includes these features as the total cost and would like reimbursement for the cost difference, for the issue to get escalated and fixed, or the dealer to offer a vehicle buyback so that I may purchase a vehicle with no defects.

Filed Jan 11, 2020 · 50 miles · AZ

The fca (forward collision avoidance) system does no work as it should. It does not see vehicles or pedestrians directly in front while not in cruise control. The only time the system alarms is when following a vehicle, which is in the same lane on city streets, and then the target vehicle turns right and creates no hazard. The fca does not work according to what is mentioned in the owners manual, nor does it operate like it is shown in a youtube video sponsored by hyundai.