Hyundai Genesis adaptive cruise problems

Filed May 27, 2026 · Brakes, Driver assistance · TX

UNKNOWN, The car lose electricity, shutting down by itself, when I press start engine, or when I shut down engine, recently car shuts off while I drive it on highway, it didn't start until I jump start it, also it shows lights of ABS, and brakes auto hold, cruise control not working.

Filed Dec 16, 2020 · Brakes · 71,000 miles · FL

Brake failure. Brake pedal must be pumped to completely depress the brakes and stop the car. This issue persists throughout use of the vehicle and no matter whether at highway speeds or in town. The issue began suddenly and has been consistent with the vehicle since that point. The brakes not being fully functional render the car unsafe to drive under any driving conditions. Cruise control light turns on intermittently and cruise control is fequently unavailable on the car.

Filed Feb 28, 2020 · Brakes, Driver assistance · 68,000 miles · CA

Tl* the contact owns a 2013 hyundai genesis. The contact stated that the vehicle experienced intermittent failures of the backup camera, the cruise control, and the driver's and passenger's side rear windows. Additionally, while the brake pedal was depressed, brake fluid leaked from the brake lines. The contact stated that the failure caused the brake pedal to go to the floorboard. The vehicle was taken to hyundai of la quinta located at (79025 ca-111, la quinta, ca 92253) to be diagnosed however, the mechanic was unable to duplicate the failures. The contact stated that an unknown repair was performed on the brake lines however, the failure recurred. The approximate failure mileage was 68,000.

Filed Feb 24, 2020 · Engine · 165,000 miles · CA

At approximately 10:30 pm. While driving on hwy at fairly good speed of 73-75 MPH, while on cruise control, the engine died and steering became difficult to none at all, all while engine was completely off. Car could not be started again. Vehicle is currently non-operable and parked. It appears I am the third owner of the is vehicle. Your assistance is appreciated.

Filed Dec 19, 2019 · Brakes · 152,000 miles · OH

Brakes are a continuing problem or better said bad brakes, like sometimes going to the floorboard. The ESC dash light is on and the cruise control doesn't work either. I had completed a recall on the brake fluid,but shortly after that my my petal went to the floor. Being concerned, I replaced the master cylinder, brake rotors, brake lines and pads. Upon bleeding the system, the dealers new brake fluid came out with sludge floating on top of clear fluid. I contacted the dealers general mgr. And complained of a bad drain repair. He asked me to bring my car in and they'll check it again. I showed him the pictures and they denied that it came from my car, but they would fix my car's brakes for $2700.00 with no guarantee that it wouldn't cost more. This was tom ah dealer ship in lima, ohio. I feel that hyundai should be held responsible for these brake problems.I have the fluid saved and pictures also. Upon checking the internet, I have been advised that the ESC and cruise control is wired to the ABS system. I was on interstate 75 and the car just started applying the brakes by themselves. A ratcheting on off effect. I slowed the car down and pulled the car over to the side. I was within sight of my turnoff state rte 274 oh, so I continued on. I went to stop and my petal went to the floor. I was going slow, made my turn and stopped. I got under the hood just to see if something visual was there. I was within 7 miles of my home a straight line, so I went for it. I pressed on the gas and my left front wheel was locked up. I backed up and went forward again, shutting off the car & restarting it. Brake was released, but petal still went to the floor. I drove home 20 MPH, had car towed to dealer for repair. Don't know what they did, but charged $677.00. A couple days later, my petal went to the floor again. Thats when I did the repairs noted above. Still have problems.

Filed Oct 22, 2019 · 29,038 miles · NJ

On 8/3/19 driving on academy st. In newark nj @7:50 am, at the red light on academy & washington st. My brakes failed with no warning, and I rolled thru a red light where the car stopped in the middle of the intersection. I was able back up avoiding an accident as a bus waited. All the warning lights were flashing after my brakes failed. I pulled into a parking lot a few yards away, and called genesis, which said they received an alert on the adaptive cruise control, and I asked why they were no alerts on the impending brake issues, as I had received a prior alert on another issue dealing with the fuel vapor harness. I called the dealership to drop of the car on 8/5/19. They diagnosed the issue as corrode rear brake lines, and brake hydraulics, and was be repaired under warranty( I had purchased an extended warranty from the hyundai genesis dealer at the time of purchase in 8/2019), and it appears this is the warranty covering the repairs, not the balance of hyundai's vaunted warranty., my vehicle has only 20,038 miles on it, so heavy usage is not the issue here. It appears the were bad parts on the car, and I was just lucky to have escaped a bad accident that morning. So far, the car has been at the dealership since 8/5/19, with no information as to where the repairs stand, or if the vehicle is repairable. We have two of these vehicles in the family and are concerned, and are keeping a close watch on the other.I have reason to believe there may other owners driving these cars with similar problems quite unknown to them.

Filed Jun 17, 2019 · Acceleration, Driver assistance · 36,000 miles · FL

At times the vechicle surges forward when close to another vechicle when in cruise control. Heads lights have turn off, on, automatic, low with out any human interaction. Navagation screen went completely blank

Filed Jun 12, 2019 · Acceleration · 48,124 miles · GA

My wife came home an told me that the car had accelerated on it's own. I took it for a drive after she had shut it off, and found no problems. This happened several months ago, and she took it to the local dealer, and they could not find a problem. This pass weekend the same thing happened to me. I even drove up a hill to see if it would keep on accelerating, and it did. I had to pull over to the side of the road and turn the car off. When I restarted, it worked normally. The cruise control was off.

Filed Dec 10, 2018 · Electrical, Lights · 50,000 miles · AZ

Hello the federal safety agency administrator, I bought a new hyundai genesis in march 2010. Around august 2010, I had a small fender bender in the parking lot. To keep warranty intact on the car, hyundai insisted that the wiring harness on the car be replaced, which I did for approximately $5000. Since then, I have had multiple electronic items go bad in the car. I replaced some of these at my own expense. But the problem has gotten worse with some expensive electronic components going bad over the last 2 years. In normal circumstances, these components should not go bad over the life of the car, and certainly not at a frequency that they have failed in my car. I attribute these failures to bad/defective job done during wiring harness replacement. But hyundai has refused to accept responsibility since the car is out of warranty. Below is a list of the bad components, approximate date of the component going bad, whether it is replaced/fixed and approximate expense to fix them 1. Telescopic steering wheel--2015--repaired as part of warranty 2. Power switch assembly driver's seat--jan 2016--$236.19--paid out-of-pocket to get it replaced 3. Jog dial assembly--oct 2016--$1031.70--paid out-of-pocket to get it replaced 4. Front cabin dome light assembly--feb 2017--$376.91--paid out-of-pocket to get it replaced 5. Smart cruise control--mar 2017--not replaced--dealership gave me a quote of ~$4500 to replace 6. Passenger cabin dome light assembly--aug 2017--not replaced--$4500 estimate to replace 7. Multi disc cd player--feb 2018--not replaced--$1000 estimate to replace I would like the federal safety agency to investigate hyundai for this matter and force them to pay for repairs. As a consumer, I feed cheated and being forced to double pay for repairs - once for the wiring harness replacement and now for all problems attributed to it. Sincerely, [xxx] information redacted pursuant to the freedom of information act (foia), 5 u.s.c. 552(b)(6).

Filed Aug 11, 2017 · CA

Abs module with adaptive cruise and electric park brakes