2020 Hyundai Palisade Collision Avoidance Problems

Which parts fail

• Warnings
  13
• Automatic emergency braking
  6
• Warning
  3
• Adaptive cruise control
  3
• Assist
  2
• Sensing system › Camera
  1

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 Palisade owners, lightly cleaned up (personal details are redacted by NHTSA).

I approached the intersection slowly and stopped completely to turn right. There were a couple of vehicles in front of mine. I pushed the 'Auto Hold' button while waiting on the Red light. A second later, I felt the car moving on its own and stepped on the brakes. The car did not stop and went forward and crashed into the vehicle in front of me. My vehicle did not stop after the initial collision and accelerated more on its own and went forward. I pushed the 'Park' button to stop the car but it did not work and the vehicle kept moving forward fast and hit another car. It still kept moving fast until it hit other things. The car stopped after it went through a wire fence and hit a tree. The brake did not work at all. The car never stopped once it started moving on its own. Forward collision warning never came when it was approaching the first vehicle in front of mine on its own. …

I was recently involved in an accident with my 2020 Palisade that I believe may have been caused by a brake failure. I was simply moving the vehicle from one part of a driveway to another when, as I drove over a drainage ditch, the brakes did not respond and the car suddenly accelerated into a tree. I sustained facial injuries and was transported by ambulance to a nearby hospital. The vehicle is currently at Canby Motors in Bel Air and is available for inspection. The vehicle has only been inspected by Canby Motors to my knowledge at this time. There were no warning lamps, messages or other symptoms of the problem prior to the failure.

emergency brakes came on ,on the freeway twice ,and one in front ,no other car around. on the right side a person in the parking lot while the car was moving about 2 mph ,walked next too the car and it felt like one brake came on only to slow me down and did not stop ,just braked for 2 seconds ,like on the freeway all the brakes came on the freeway, but in the parking lot only one came on it felt like.

This issue was first noticed on December 13th, 2021, and has been an ongoing frustration. I am constantly getting this error: "Parking Sensor Error or Blockage." Please take a look at the attached picture as a reference. On February 8th, 2022, I brought my Hyundai Palisade to the dealer's service department for them to find out what may be wrong. Their technician notes: "Scan all modules for codes with GDS. No DTC in any module. Drove vehicle testing all front and rear sensors, and all are working as designed." Please see attached PDF of the service department's official printout. But I have had the same repeating issue since, most recently, last week. Something must be wrong with these technicians. Last year I had the front passenger window whistling sound issue, and technicians said after driving the Palisade that nothing was wrong with it and everything was working as designed. …

I was driving through town at a low rate of speed (20-30 mph) with 2-3 car lengths between me and the next vehicle. I continued through light to next light. This distance was on an upward incline. After traveling approximately 500 ft, I noticed the traffic slowing in front of me and took my foot off the accelerator to start to slow down. This is when the car suddenly accelerated (instead of slowing down as would be expected when traveling up an incline), picking up speed quickly. The car's response happened so quickly that I was unable to swerve to avoid hitting the car in front of me. I hit the car in front of me that was slowing down at the light which then subsequently hit several other vehicles that were in front of it that were also slowing/stopped for the light. The front airbag deployed as a result of the collision, knocking my glasses off. …

On February 2024, I took the SUV to Lynn's Hyundai for an issue with A front sensor or the braking system - The problem is when you're driving at times very often in the streets, the vehicle will automatically cause the brake sensor to go off the dashboard with light up and the brakes will engage causing the vehicle to jerk hard and or stop at times and I have a huge concern that this may cause a serious accident. I was told by Hyundai service department, that perhaps were driving to close to other vehicles to cause this, but it happened several times when there are no vehicles or objects present. Apparently they had no interest in resolving this matter, they claim that the system test showed no duplication of said issue, vehicle was taken on a road test and they found no issues, The recall were all fixed, and I was called to pick up vehicle. …

I am the 3rd time owner of this palisade. Car was bought after a transmission replacement at 27,000 miles. (Second transmission). At around 70,000 miles, we started to have oil consumption problems/ignition coil problems. After a slew of tests and other recommend procedures that cost us money out of pocket, hyundai recommended to get a new engine. We get the new engine. They call to tell us the new engine is done, and proceed to share the transmission is bad and it needs a new one (3rd transmission). They are asking us to pay for the transmission as well. We want a buy back as we think this is a lemon car. 3 transmissions and a new engine under 85000 miles is not good and definitely grounds for investigation. These repeated failures make it unsafe/unreliable for us to drive our 6 month old baby in, let alone my wife and my myself. . We request and investigation/buyback.

when driving it gives warning Forward collision assistance system disabled. radar Blocked. warning stays for 3 to 5 minutes and goes away. But during that time when car is in cruise it is disabling the cruise mode. I took it dealer and said they need to change the Camera module unit behind the Rear view mirror and replaced it. But after coming out of dealer and driving for few miles again warning popped up and stayed for few mins. I took it back to dealer and this time they said AVN head unit need to be replaced. I informed this to Hyundai as well and they created case with case number: 20602610. This started happening in July 2022 and i was coordinating with dealer to fix this. still the issue is being worked on.

Car was purchased new in May of 2020 and all systems worked as expected. After approx 3 months and 2000 miles the rear backup camera began to pixilate and then failed resulting in a blue screen. Went to a different dealer and they advised replacement of the camera. Returned vehicle to another dealer and they replaced the camera and it worked for about a month then pixilated and failed again. Took the car to a different dealer who checked the connections and cable and advised that the camera needed replacement again. This will be 4 Hyundai dealers that have looked at the car and camera now has a blue screen.

On rainy days, the vehicle will start malfunctioning putting at risk my family's life and others. It appears to be an electrical problem according to dealer. It had 15 codes activated, all dashboard lights were lit and safety messages showed up, while driving. No power steering, emergency brakes were activated, transmission wouldn't change, a/c stopped working, temperature and tachometer were erratic. It is very scary because it happens while driving and an accident is imminent.

Collision Avoidance complaints in other Palisade years