2020 Hyundai Palisade: multiple warning lights

Filed Sep 4, 2026 · Engine, Transmission · WA

On August 14, 2026, while driving and decelerating, I heard a knocking sound from the engine and the vehicle had difficulty downshifting. As the transmission shifted from second gear to first, the engine stalled immediately and the vehicle dropped into neutral while on the roadway. I lost propulsion in traffic. The vehicle behind me nearly rear-ended us due to the sudden stall. My children were in the vehicle. All dashboard warning lights illuminated at the moment of the stall. I was able to restart the engine and move the vehicle slowly, in first gear only, into a nearby parking lot. The check engine light came on at that restart and has remained on since. The vehicle sat parked and off for approximately 90 minutes. Before restarting, I checked the engine oil level and it was within the normal range. On startup, my children and I both heard a loud knocking sound and noticed an unusual smell, and the engine idled roughly while in Park. I drove approximately 15 minutes home with the rough idle continuing. On arrival the vehicle smelled hot, with a burning odor, although the temperature gauge read approximately mid-scale and was not in the high range. The check engine light remained on and the oil level was again confirmed to be within range. The vehicle has been out of service since the incident and is currently at a dealership awaiting diagnosis. This is a 2020 Hyundai Palisade with approximately 93,000 miles at the time of failure. A sudden loss of motive power in a travel lane is a safety defect.

Filed Feb 20, 2026 · Engine · PA

August 2025: While driving down the road and approaching a light, I slowed down to turn and make a left. As I braked, all lights on the instrument panel lit up and the car completely turned off. After several attempts to start the car again, the car started. After taking it to a shop, it was determined that the car had consumed all oil, despite being within the recommended milage range for oil change. I filed a complaint with Hyundai, who emailed me to talk to my local dealership. I responded and have yet to receive a response to my communication, as of February 20, 2026. Hyundai dealership has told me that I need to fail three oil consumption tests (I have), complete a combustion cleaning (it has recently been completed), and fail one more consumption test before they can submit to corporate for a new engine. In the meantime, I have experienced my car shaking, the smell of burning oil, my car "jolting" forward while driving at sustained speeds, and a tailpipe that is completely black with 67,800 miles currently on the car.

Filed Feb 11, 2026 · Driver assistance, Electrical · NJ

While idling at a traffic light on a busy city street all of the warning lights on the car went off and the car shut off on its own.

Filed Aug 25, 2025 · Engine, Fuel system · TX

While merging onto a highway, my 2020 Hyundai Palisade abruptly lost all engine power and stalled. This immediate and complete failure occurred at a critical moment, posing an extreme safety risk. All dashboard warning lights illuminated, but provided no specific diagnosis. The vehicle was towed to a dealership, where technicians determined the engine was consuming oil at an abnormal rate, despite a lack of visible leaks. I was instructed to participate in an "oil consumption test," a three-part process that required multiple oil changes and inspections over several months. Each time, the vehicle had burned over a quart of oil—a clear indication of a defect. Despite this evidence, Hyundai denied my warranty claim, accusing me of negligence for being unable to produce oil change records between 29,600 and 46,900 miles. This is a common and unacceptable tactic used to avoid accountability for a widespread issue. My experience is not isolated. Hundreds, if not thousands, of owners of 2020-2023 Hyundai models, including the Palisade, report identical engine oil over-consumption issues and subsequent power loss. This issue is a **severe safety hazard** that can lead to sudden, catastrophic engine failure and potential accidents. Hyundai's refusal to acknowledge this defect and issue a recall is **gross negligence**. They are knowingly allowing thousands of unsafe vehicles to remain on the road. There are currently federal lawsuits against Hyundai for this very issue. The transportation authority must force Hyundai to issue an immediate recall and remedy this critical defect before a tragedy occurs.

Filed Sep 20, 2024 · Driver assistance, Electrical · PR

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.

Filed Jun 3, 2024 · Electrical, Engine · FL

On 4 occasions the vehicle completely turned off while I was driving down the avenue. It turned on all the lights on the front panel before turning off completely.

Filed Jul 25, 2023 · Electrical · TN

The alternator failed at 65k miles. Lost headlights, steering, all ability to drive on the interstate with children in the car. Thankfully my husband was able to safely get us off of the road and out of traffic without incident. Driving at 70mph when the battery light flashed once, then all dash lights started flashing then car lost power. No warning other than what happened in just a few seconds. Alternator failed and deemed bad by parts stores.

Filed Feb 2, 2023 · Brakes, Driver assistance · PA

On 1/24/2023 I was driving down the road from my home to go to work when, as I was going down an incline, my brakes started pulsing and I lost all braking ability. I drove thru a stop sign, into the intersection and was able to steer the car down the road. It was down a hillside. I was able to eventually stop the vehicle approximately a mile and half from where the brakes failed. I was instructed by the dealership to have the car towed to them so they could evaluate what happened. I did this. The dealership is trying to assess what happened. After 1 week, they replaced all 4 tires, did an alignment and replaced a leaking rear shock. The vehicle had 36,201 miles as of 1/24/2023. The dealership claims that the wear on the tires and the vehicle being out of alignment caused the wheel speed sensor to misread the speed and triggered the ABS to unlock all brakes. When this happened, all the warning lights for the braking system came on: ABS, Auto Hold, Traction Control, Forward Colision Avoidance System, Downhill Descent Control. I had nothing to stop me. Thankfully, no other vehicles came thru the intersection when my vehicle lost control. The dealership has, after a week, supplied me with a loaner vehicle. They are trying to duplicate the loss of brakes and all the lights that were activated when I lost my brakes. I also mentioned to the Service Manager at the dealership that I have repeatedly been asking the technicians to check the tires and to rotate the tires at our last few service appointments and had been assured the tires were fine and the tire rotation would be done. We normally have the tire rotation done every 7,000 miles due to the fact that it is an AWD. If this had been done as we requested, how could this happen? Wouldn't someone have noticed uneven tire wear? Our major concern is that when the brakes fail, you have no backup braking system in place. Is there something wrong with the programming for the electronic braking system?