Which parts fail
Components named in complaints (automatic emergency braking, adaptive cruise, lane keeping, backup camera).
Mileage when the problem started
Owner reports
Selected complaints filed with NHTSA by 2020 Hyundai Tucson owners, lightly cleaned up (personal details are redacted by NHTSA).
The contact's father owns a 2020 Hyundai Tucson. The contact's father stated that while driving at various speeds, the Forward Collision Avoidance message was displayed; however, there was no other vehicle nearby. The vehicle was taken to a local dealer, where it was diagnosed that an unknown sensor needed to be replaced; however, the contact's father was made aware that there was a backorder on the part. The vehicle was not repaired. The manufacturer was made aware of the failure. The approximate failure mileage was 5,000.
The contact owns a 2020 Hyundai Tucson. The contact stated that upon starting the vehicle, the check engine, master general, and forward collision warning lights were illuminated. The vehicle was taken to the dealer, where it was diagnosed, and the contact was advised that the multifunction camera had failed and needed to be replaced. The manufacturer was notified of the failure. The failure mileage was 44,000.
I went to Thompson Automotive to finance a vehicle and within a month and half my engine blew. There were no engine lights, no lost of oil, no warning, no signs of any error, before this series of malfunctions took affect. I was on my way to the dealership and my car being slowing down to a complete stop as I was getting off the highway ramp. I was traveling at the speed of 25mph, when the car started to make loud noises that I never heard before that day, and completely shut down in front of a huge tractor trailer in traffic. The dealership has had my car since 6/7/24. Now the car has about 85,000 miles on it. I have to pay another $3,000 for my portion to get a new engine. Which is outrageous considering I just agreed to pay $19,990. I am highly disappointed that I lost my job and everything behind this horrific situation that actually feels like a set from the beginning. …
The backup camera in the 2020 Tucson Ultimate is blurry, creating a serious safety issue. We have taken the vehicle to the dealer repeatedly with this complaint and although the service advisor agrees, Hyundai has refused to replace or repair the camera. Note that there are many of the same complaint that can be found through a simple internet search, but apparently Hyundai refuses to acknowledge and repair the issue. Both the driver's safety and the safety of others are at risk, since it's not possible to see clearly what is behind the vehicle. The problem has been confirmed by the dealer and the dealer requested a replacement backup camera, but Hyundai declined authorization for the replacement. Federal regulation that went into effect in May 2018 requires that all new vehicles must have a backup camera. …
Hyundai Tucson Sport 2020, this happens always, while driving in the highway, long distance the forward collision warning activates (no cars in front of me or any objects) and the SUV make a sudden stop and it sound a loud scary noise, then I have to park, turn it off and then start the SUV again because the rpm starts going up. This is a safety hazard, luckily no one was behind me or I could get hit in the middle of the highway. I took the SUV to the Hyundai dealership where I bought it in San Juan, Kennedy, but they said they didn't find anything. I took it then to the Hyundai dealership in Caguas, P.R. to have it check and still waiting on a response. It's been a year and still no one finds what's the problem. I feel my life is at risk when driving in the highway.
Both waning lights came on for lane assist and forward collision warning. I took the vehicle to the dealership. They said the camera was not working and I would have to pay $1700.00 to install a new one. It appears there are 2 separate cameras involved. I was asked if I struck anything. I did not and the camera in the grill is I damaged as is the forward collision camera in the rear view mirror. The paperwork I received from the dealer says "software error" I have not had the work done due to the cost. I was also told by the dealer that they are aware of other customers with the same problem.
At times, this vehicle will refuse to go. You will get an alert in the dash that the emergency braking system has engaged. It may be a door is not completely shut, or sometimes it's just that I don't have my seat belt on. It seems to be inconsistent, because I often times put my seat belt on after I finish backing out, and am ready to go forward. If there is any kind of incident that requires a fast escape, this "feature" could cost somebody their life, or cause them to deal with a carjacking. The car needs to go when I tell it to go.
For at least the last 60 days, the blind spot warning camera system will disengage while driving. Took the vehicle to the local dealer, who had the car for 2 days and could not determine the cause. They did discover it will disengage after driving the car for 18 miles. They have called Hyundai for assistance. So far, no information received back from Hyundai on how to correct this issue.
While driving the vehicle suddenly started alarming indicating to check "Forward Collision Warning" followed by an alert to check "Lane Keeping Assistant." Immediately pulled off the road shut the vehicle off and checked the perimeter. No issues noted. Issue continues, while waiting for service from local dealers.
Warning lights for Lane keeping, Blind Spot, ABS, Autohold, Foward collision systems came on and will not reset. Reports of this all over hyundai forums and owner fan pages (Facebook, etc). It can fool the driver into believing the car is about to be in an accident prompting panic response in drivers.
Collision Avoidance complaints in other Tucson years
Frequently asked questions
How common are collision avoidance problems on the 2020 Hyundai Tucson?
NHTSA has 22 complaints about the driver assistance of the 2020 Hyundai Tucson, 12% of the model year's 179 complaints. The component named most often is warnings (7 mentions).
Is there a recall for 2020 Hyundai Tucson collision avoidance problems?
No. NHTSA lists no driver assistance recall for the 2020 Hyundai Tucson, though it has 1 recall for other components. If the problem is widespread, a repair may still be covered by an extended warranty or a manufacturer service bulletin — ask a dealer.
At what mileage do 2020 Hyundai Tucson collision avoidance problems start?
Half of the complaints with a recorded mileage happened before about 4,000 miles, and 83% before 25,000 miles.
Source: U.S. National Highway Traffic Safety Administration (NHTSA) — owner complaints through October 20, 2026, recalls and defect investigations; fuel economy from the EPA. Complaints are unverified reports and are not proof of a defect. How we rate model years.