2024 Hyundai Tucson: false forward collision warnings

Filed Oct 15, 2026 · Acceleration, Driver assistance · MD

I am submitting this complaint to report a potential safety concern involving the Forward Safety (Collision-Avoidance) System and Smart Cruise Control System in my Hyundai vehicle. I am concerned that these warnings may indicate a problem with safety-related driver-assistance systems, and I want to bring this issue to the federal safety agency's attention so it can be evaluated for potential risks to other vehicle owners. Vehicle and diagnostic information as - Make: Hyundai - Model: Hyundai Tucson SEL FWD - Model year: 2024 - Purchase date: March 2024 - Odometer reading: 24,359 miles - Diagnostic Trouble Code (DTC): C174181 - System identified in Bluelink: Chassis - Date the code originated: October 13, 2026 Description of the problem My vehicle's dashboard displayed the following warning messages: - Check Forward Safety System (Collision-Avoidance System) - Check Smart Cruise Control System On my Hyundai Bluelink account also displayed an “Attention Needed” notification identifying one chassis diagnostic trouble code, C174181, originating on October 13, 2026. These warnings concern systems intended to assist with collision avoidance and vehicle following distance. I am concerned that their malfunction or unavailability could reduce the vehicle's driver-assistance capabilities and potentially create a safety risk while driving. I am reporting the symptoms and diagnostic code for the federal safety agency's evaluation; I do not yet know the underlying technical cause. My primary concern in filing this report is vehicle safety. I request that the federal safety agency record and evaluate this complaint and determine whether similar reports involving Hyundai vehicles indicate a potential safety-related defect that warrants further investigation. I am submitting this information to help identify any possible recurring problem that could affect other drivers, passengers, and road users. I can provide screenshots from Bluelink, warning-message photographs, repair orders and additional diagnostic information if needed. Thanks

Filed May 8, 2026 · 5,000 miles · NC · crash · 1 injury

The contact owns a 2024 Hyundai Tuscon. The contact stated that while driving 55 MPH the vehicle rear of a second vehicle during the failure the no safety features had activated including the airbag, collision avoidance features. During the incident the vehicle collided with the same vehicle twice although the brake pedal was pressed. During incident the driver sustained neck, shoulder and back injuries and was unconscious and transported to the hospital. A police report was taken at the scene. The vehicle was destroy the towed away. The contact was informed that the safety sensor had failed during the incident. The manufacturer was notified of the failure, but no assistance was offered.The failure mileage was 5,000.

Filed Mar 5, 2026 · Brakes, Driver assistance · CO

Driving to work, going into a turn with no obstructions my car frequently alerts to a "collision warning" that is not there. Additionally, I have been driving on the highway, with no obstructions in front of me and my car emergency brake despite an emergency not being present. In both instances, it is extremely distracting and induces anxiety as I am alerted of a threat that is not there. Further at highway speeds (65-70 mph) on the highway, and braking despite having no emergency nearly caused an accident. I was able to push further down on the gas to force the car to keep going to not stop on the highway. The collision warning has been an issue since purchase of the car in June 2024, the emergency brake occurred in February 2026.

Filed May 6, 2025 · Airbags, Driver assistance · SC

Owner [XXX] [XXX] . Driver [XXX] [XXX] ) [XXX] All of a sudden my 2024 Tucson vin: [XXX] gages indicated emergency braking for about 1 to 3 seconds and the front end went down ,(my wife and I went foward ) as though I was stopping (scared me ). It was the forward collision avoidance sys. I was so happy no one was behind me. Avoided a rear end collision. [XXX] we were Traveling west in the left lane of a three lane highway. I released the gas pedal to make a left turn in a left turn lane. The light was red. No one really behind me or to my left. Only one car to the right of me in another lane. This is dangerous! This is my wife’s car. Enough said!!!! Car was at the dealer for a couple of hours. They could not duplicate. Said it could have been my floor mat “that made my emergency lights come on the dash.” “STUPID” This occurred the day after picking up my car from the dealer. Feb. 28, Hyundai replaced the Air bag. STS light came on. Picked the car up Monday. Today [XXX] Thursday) the STS Airbag light came on again. The bag was replaced again. [XXX] the front collision sys emergency stop sys alerted again. Again, Hyundai declared they could not duplicate. This is an unsafe car. A death trap. Hyundai warns death may occur if using while driving can cause death. They also warn us using the emergency brake while driving may damage the brakes or cause a collision. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Filed Feb 27, 2024 · Driver assistance · CA

My vehicle has been malfunctioning with the automatic emergency brake. A total of 5 times. I am driving down the road going around 50-65 mph I am the only one in my vehicle and all of the sudden it puts the emergency brake on. It’s like someone else takes over my vehicle. Fortunately I have not been rear ended. Nobody has been in front of me when this happens the first time. It is not linked to or to be confused with the collision warning, it is wholly the emergency braking system that is put on with the light stating this & throws me forward into the steering wheel. I towed my vehicle into the Bakersfield Hyundai shop & they have been unable to duplicate my problem with the vehicle. I have lost ALL confidence in my vehicle due to it has done it a total of 5 times and I just got it in September 2023. It has been in the shop for this month. Was taken to them by tow truck on 2/7/24. Was told by tow truck driver that I would be in body bag if it happened again especially in front of a diesel truck. This is either a first of a major recall or a Lemon car. Either way not wanting to get in it again. Needs to be addressed and they can’t do anything about it. I do not have any pictures of my vehicle due to it is an internal issue but I do have the paperwork from the dealership shop.

Filed Feb 9, 2024 · Acceleration, Driver assistance · GA · crash

The forward collision avoidance system made me have accident. I was driving on the expressway, the forward collision made the car stop abruptly, then accelerate. As I was veering to the right, the car stopped again in the middle of the expressway causing me to have an accident. This is unacceptable and very unsafe. This vehicle is not safe to drive with the collision warnings.