2020 Hyundai Santa Fe

Vehicle killed the battery even with new alternator and new battery. Dealership does not know why and it died while at the shop. Vehicle has extremely high oil consumption and light comes on every once in a while. Vehicle started shaking and took to two dealership. Vehicle was diagnosed with a burnt valve in cylinder one. Dealer stated they have not heard of this problem. Called Hyundai representative corporate and was told they never had this problem before and have not heard of it. Out of warranty and was informed I would have to pay for it even though it is common in these vehicles.

I have a Hyundai Santa Fe 2020 had it only a year my sunroof is a panoramic and it busted out of nowhere. Nothing hit it just shattered on its own when I was going down the road. I know nothing hit it because nobody was on the road near me and I looked around and saw nothing. I was told to report it here so that’s what I’m doing.

The contact owns a 2020 Hyundai Santa Fe. The contact stated that occasionally while driving at various speeds in hot climate, the air conditioning failed to blow cold air. No warning light was illuminated. The vehicle was taken to a local dealer however, the failure could not be replicated. The vehicle was taken to a local independent mechanic for a second opinion, where it was diagnosed with an evaporator temperature sensor failure. The contact was informed that the evaporator temperature sensor needed to be replaced. The vehicle was not repaired. Upon further investigation, the contact related the failure to Technical Service Bulletin: 21-HA-001H; however, the VIN was not included. The manufacturer was made aware of the failure. The failure mileage was approximately 29,000.

June 2020 I purchased the car brand new 2020 Hyundai Santa Fe SE 2.5L from dealership, after the first year I started having issues with my display monitor just shutting off and my car going idle at red lights or when I’m sitting in traffic. I’ve never been in an accident and I’m not a reckless driver to my standards besides occasional potholes, the car going idle happened 3 times before I reached out to a dealership asking questions only for them to tell me, “it sounds like I’m using the start-Stop feature too much and it’s not recommended to be used often”. So I stopped using it completely. Fast forward throughout the years, it still happened about 5-10 times a year for the past few years, I’ve learned to hurry up and put it in park, give it gas, then put it in drive. Fast forward 2025, Feb I was passed due for an oil change about 300-500 miles the the oil light came on and when I check it myself the oil tank was completely empty, I assumed it was normal since I was passed due for an oil change, and a family friend told me that wasn’t normal, I follow the recommended oil change interval on my warranty paperwork 7,500 even set my car to it, after the oil change my car was fine. I took it in at 130,284 miles, fast forward June 2025, I start my car a morning for work & it’s at 135,658 miles, the oil light comes back on and I notice it’s completely empty again. 2nd time it’s happened this year, and two family friends that are licensed mechanics tell me that’s not normal especially if I’ve gotten an oil change this year & it’s seems like the engine is burning oil too quick. I took it in to get another oil change, tell them about the issue of it being empty when I’ve been this year and it doesn’t seem right, the dealership & a local quick oil change place tells me it’s due to me not bringing it in for regular maintenance. There are no lights on on my dashboard, and when I called the dealership to ask about using the lifetime powertrain warranty I have, I have to pay.

A few days ago, while driving on one of Chicago’s busiest expressways, my Hyundai 2020 Santa Fe with only 56,000 miles and a complete record of up-to-date maintenance, suddenly started smoking, smoke coming from under the front hood then caught fire without any warning. The fire consumed the entire front end of the vehicle from underneath the car to the top hood of car, to make matters worse, my seatbelt temporarily locked up during those critical moments, compounding the terror of the situation, potential risk to my life and property. I am incredibly grateful that I was able to escape unharmed, but I remain visibly shaken and traumatized by the experience. As you can imagine, this unexpected event has profoundly affected my peace of mind and trust in the safety of Hyundai vehicles. It is extremely concerning that a modern car, properly maintained according to its manufacturer's recommendations, could catch fire during regular operation, no warning lamps, messages or other symptoms of any problems prior to the incident. I have always valued Hyundai’s engineering and safety standards, which is why I find this incident especially alarming. I am uncertain to what component failed the fire department stated it could have been either the brakes or electrical. As of writing this no official inspection to determine cause has been conducted however, I have reported the fire and filed an insurance claim and asked If they are able to determine how this happened to provide me with this information.

Driving vehicle at highway speed, engine RPMs dropped to less than 1500, could not maintain any speed, CEL illuminated. As soon as vehicle was pull to side of road, it would no longer run. It would start, idle roughly then stall out. Vehicle was towed to Mountain Hyundai in Denver. High pressure fuel pump failed, fuel pump in one cylinder failed, fuel was dumped into oil fouling all spark plugs. This is the second high pressure fuel pump failure on this vehicle.

Frequent intermittent dash warning lights, no speed indicated, no tach indicated, cycles through warnings of safety systems malfunctioning. No lane departure, no adaptive cruise, no cruise, no forward collision warning, no blind spot warning. The disabling of these systems puts all drivers at risk. Dealership replaced front camera and windshield to fix this issue. Not fixed, continues to alarm at random times while driving.

First of all the transmission locked up at 97,423 miles when I was on my way to work. It took almost a month to get this fixed under warranty. I bought the vehicle in 2021 with 55 miles on it. Now at 164,000 it has to have a new motor. It has burnt more than a quart of oil every week for the last 2 years. I have had it to the dealership multiple times to be checked and never got a response as to why it was burning oil. Then in December of 2024 I was on my way to work and the vehicle was struggling to go. I would push the gas and it would go a little but as soon as I let off the gas it would stop running. Took it to the mechanic recently (due to other issues) and was told that it is only running on 3 cylinders. Also that in order for it to stop burning 2 quarts of oil a week that the pistons needed replaced. Mechanic stated it would be cheaper and better with the other issue to replace the whole motor.

I believe I am having an oil burning/consumption problem. I drove my car and the oil light flashed and I have had some hesitations in the engine. I checked the oil upon parking at my home and I had no oil on the dipstick. I put in approx 4.5 qts of oil. I read online that there is an oil consumption issue with my engine type (2.4 gdi). I called Hyundai Service Dept at my local dealership and they told me before looking at the car that wasnt an issue and not the problem. They investigated and found 0 leaks or issues with the car and engine. We did an oil change and they told me to come back in 1k miles. Im very close to the 1k miles and my dipstick is showing low level of oil. The dealership is not happy that I called today to tell them this and said just come in once you hit the 1k and no sooner. I have been told that the next test that needs to be done will be between 700 and 800 dollars out of my pocket as "Hyundai doesnt like to cover the tests and neither does the extended warranty." This appears to be a bigger issue than what Hyundai wants to acknowledge. I have no confidence in them fixing the car and debating to trade my sante fe in and getting a new car at this point.