At highway speed the computer has attempted to pull the car out of the lane into the adjoining lane as if in attempt to avoid something. This is happened at highway speed's about six times. Vehicle also at one time applied the emergency brake as the vehicle is approaching an intersection as an emergency stop. The car would not move for several seconds. When I brought the vehicle into the Hyundai dealership the representative immediately suggested that there was a rodent problem. This was confirmed not to be the case.as there did not appear to be any other computer messaging the technician suggested that maybe it was the California fastrack responder unit. They suggested it be relocated which I did. The problem lies that you're not sure that this is what caused the problem and the suggestion 'to drive it to see if it repeated' as it does not sound prudent from a safety perspective. The computer pulls at a hard level which makes it difficult to maintain the vehicle in the lane and it suddenly releases the pulling which jerks the car back into the driving lane much like an over correction. This is obviously quite dangerous and I would suggest something else is done to either confirm or disapprove the responder issue as these responders are common and it was placed per the instructions of the fastrack.

- Walnut, CA, USA

I had rented a Hyundai sante fe in September 2019. I had the vehicle for a few weeks with no issues until I drove over the mountains. I had pulled into a parking lot and was looking to park, coasting through the parking lot, I then backed up and found a parking spot. I was turning right in at a very slow speed, a virtual crawl into a parking space when I pressed the brakes to stop the vehicle when it suddenly revs its engine and began accelerating out of control jumping over the front parking curb and slamming into a chain link fence. The brake was depressed to the floor and would not stop, I pumped the brakes to stop and when it would not stop, I quick slammed the vehicle into the park position to prevent the vehicle from hitting a tracker and causing further damage or injury. I contacted my insurance agent and then I contacted enterprise rental company in bend Oregon. I was on hold for roughly 30 min. I explained the situation and they stated that there were no recalls they knew of and they advised me to contact their tow company and have it towed to the airport in redmond Oregon to switch out the vehicles. I researched on my own and found that their was a similar incident in las vegas, nv reported in January 31st, 2018. This incident needs to be looked into before someone is seriously injured. The isg may be a contributing factor in this case.

- Eugene, OR, USA

I am not sure what category this should be in but my 2019 Hyundai Santa Fe hesitates when I try to accelerate. This happens mostly when I am accelerating from a complete stop but also happens occasionally when I am going around a corner. This is a dangerous problem that has nearly caused an accident when turning on to a busy street or merging onto the expressway. After some online research, I see this is a widespread issue.

- Plainwell, MI, USA

Several occasions the safety features of this 2019 Hyundai Santa Fe deactivates. 3+ occasions the vehicles frontal collision avoidance, lane keep assist blind spot detection automatic high beam lights as well as cross traffic alert suddenly will cut off. Have taken vehicle back to dealership where purchased to be told no codes are being stored. Contacted Hyundai usa several times to get a run around or the response if its not recording there is nothing wrong with the car. I have owned a 4 Hyundai Santa Fe's and never had the issues I am having like I am with this one.I do not take my grandkids in this vehicle as im worried that if these safety features fail to work I dont want to chance their lives in a vehicle that could possibly experience more severe issues or worse. Dealing with Hyundai has become a disappointment as the 2004 Santa Fe I own is by far more dependable than this one.

- Stephenson, VA, USA

I was involved in an accident on 11/11/2019 when my 2019 Hyundai Santa Fe had a significant failure of the collision avoidance system. The traffic ahead of me braked suddenly after travelling at approximately 40mph. The collision avoidance warning did not sound and when I applied the brakes, ABS did not activate and the brakes did not work properly. I made contact with the rear of the vehicle ahead of me. None of the three stages of the collision avoidance system activated. The malfunction caused the brakes to not function properly. The collision occurred at approximately 10mph. There was over $12,000 damage to the front of the Santa Fe but the airbags did not deploy. I have driven over 1,000,000 collision-free miles in various vehicles, with and without collision avoidance. This accident would not have happened but for the malfunction of the cas. I reported this to Hyundai usa. I took more than one week for a reply. Hyundai's position was that they would investigate but it would mean they would have to take possession of the vehicle for 10 weeks or more, without a temporary replacement vehicle. There has been no resolution with Hyundai.

- Lincoln, NE, USA

Vehicle caught on fire

- Columbus, OH, USA

The blue link remote start often does not respond. This is very difficult to get fixed. The dealer does not have access to this system. Hyundai does not have a contact number that is easy to locate. When you do call they are difficult to talk with and often just hang up on you. This has been an ongoing struggle for several months. It is almost impossible to reach someone to talk too about this. They have recently sent an E mail telling me that that I must accept changes in my blue link (they are going to share data from that with other companies). You do not have an option to decline. They give you an option to agree or they note that continued use of blue link gives consent. I do not give my consent. Blue link is not dependable and as a result data from that system is likely to inaccurate. I own three Hyundai's and buying the 2019 was a mistake. The blue link system is a mess. The sell you the system it works on your phone, works from anywhere no distance limitations ect. But after you buy it they point out that you cant complain because its a complementary service. This only comes out after you buy the car. They never talk about it before the purchase. After owning Hyundai's for several years (3 of them) I am beyond disappointed they the customer service is so poor. Whats worse is that when you complain they can't find a number to contact where you can get Hyundai America to even listen to the problem.

- Grand Forks, ND, USA

Idle stop and go technology feature cannot be disabled. The system turns itself on after I have turned off without warning. After driving a few miles with the feature turned off and stopped at a light, the engine will shut down, thereby turning the technology back on. I have almost been in several accidents thinking my engine was running when it was not. There should be a way to disable this, not just temporarily turn off. I have brought this to the dealer's attention but they are mystified as I am. This has been going on since purchase last summer, though below I am asked for a specific date it happened.

- Kissimmee, FL, USA

I purchased a brand new 2019 Hyundai Santa Fe on February 20, 2019. On Sunday, February 24 while driving on a back country road going no more than 35 mph, there was a loud noise on the roof of the car. I opened the electric cloth cover and the sunroof was shattered and glass started falling in the car. Contacted the dealer the next day and was told to contact my insurance. The dealer or Hyundai should cover the cost as I only had the car for 4 days.

- Roxbury, CT, USA

My new 2019 Hyundai sante fe from the time I bought it had the yellow check engine light come on. It said the bsm system wasn't working. Then the engine would not start on 4 separate occasions. I had to wait to get it to start. There have been 3 occasions when it did start it sounded like it was going die, very sluggish and didn't want to accelerate. The RPM would not increase. It also started 2 separate occasions it lost steering wheel power and the A/C stopped blowing cold air. I had to turn it off and wait to restart it. It is currently at the dealership waiting for the blind spot monitoring modules. The first time they replaced the module it still showed it not working. So now it is undrivable at gene messer Hyundai in lubbock Texas, they say it's not safe to drive so I am driving a loaner. They say they can't determine why the engine did the described things above. These things happened while in motion and parked.

- Lubbock, TX, USA

I bought the vehicle August 1 and drove it home, 50 miles, at 75+ mph. Immediately I noticed a high vibration in the ride as well as looking in the rearview mirror the cars behind me were blurry from the vibration until I place a finger on the mirror. I returned to the dealer the next day relating to the vibration. They balanced the front tires. I returned home and the vibration was still there. The vehicle has been at the dealer 4 more times with no solution. I have been supplied with a rental for a few days and was told the SUV was ready. I picked it up on a Saturday and asked for someone to go for a ride to see if the vibration was still there. No one was available so I drove it home and the vibration was still there. I returned it to the dealer and an hyundia engineer took it for a test drive up to 70mph which was in the city and not highway driving. I had a conference call with the GM and was told that the engineer said all of the SUVS vibrated and this one was more "pronounced" which was not in his report to hyundia who I've been in contact. I believe this vibration is not in the wheels, one tire was replaced, but mechanically elsewhere. It has been at the dealership since 9/25/2018. I believe this SUV to be unsafe and that other components will fail. This is my 3rd SUV and I've not had any problems with the first 2. another engineer is scheduled to inspect it 10/23/2018. I am a helicopter Pilot and know what vibrations can do to mechanical and electrical components.

- Cochiti Lake, NM, USA