Check Engine Light On problems of the 2015 Hyundai Santa Fe

2015 Hyundai sant fe limited 3. 3l awd, purchased new from dealership, 129,280 miles. Routine oil service with mobil 1 synthetic and wix filters since purchased. Traveling 75mph on I-10 (florida) with cruise control on. Not towing, traveling straight. As the vehicle started up a small grade in the road, the cruise control surged (as normal to maintain vehicle speed) I heard a bang, check engine light came on, oil light came on, engine died immediately. I immediately shifted into neutral and looked out the passenger window to merge onto the shoulder and noticed an orange glow outside (it was night). Once stopped, opened hood and noticed smell of oil, oil pooled in the underbody fairing. Checked oil drain plug and filter, as I had an oil change 700 miles prior. Both were still properly installed. Towed to local mechanic, diagnosis was seized engine. Inspected engine block and noticed fist sized hole in block (see photos). Towed to dealership, was informed they hadn't seen this before on this engine. I informed them I currently drive a 2001 Hyundai elantra with 220k miles on it and have been driving/maintaining cars for 30 years and I've never seen this before either. Was informed that they suspect improper oil maintenance. Oil and filter both replaced every 5000 miles. Always mobile 1 synthetic and wix (good quality filters/oil). I suspect Hyundai has engine reliability issues. No prior engine issues noticed. No check engine lights prior. No oil lights on prior. We just completed a trip to nashville, TN (860 miles round trip) and were returning from jasper, FL (460 miles round trip). Oil and filter replaced right before trip. Tires balanced and rotated. In other words, I maintain my car.

I have already replaced the map sensor and the battery last year. Car was shutting off while driving with no warning. Check engine light would stay on. Recently in last couple months noticed issues with the brakes. When applying pressure to brakes while on freeway the steering would shake and feel like I had no control. Just received notice of a brake recall but there is still no remedy. How long do I wait for them to come up with a remedy?.

Was driving to work on an interstate highway, going approximately 65-75mph for about 10 minutes. As I pushed the accelerator to prepare for a lane change, I realized that I could put the accelerator all the way to the floor with no response. I immediately noticed that my "check engine" light appeared. I tried again unsuccessfully, then tried the breaks. The breaks were very stiff, as if their power to the engine was cut off. I tried to turn off of the highway onto the curb, and I noticed that my steering wheel was also very stiff. Although I could turn, it took much more strength than usual. I let the speed decline naturally until it stopped entirely on the side of the highway. While stopped, I tried repeatedly to use the breaks, gas, and test the steering, but the same issues were there with zero success. One thing I can note was that the battery appeared to be working just fine, as my radio was on throughout this entire time. The check engine light remained on until I turned the car off, and waited a few minutes. I turned the car on after some time and it immediately worked - with everything else appearing to function properly. The light at this time was off, and has not happened since. I immediately turned the car into the Hyundai dealership, but because the light turned off, they claim that they are not able to read what had happened during this incident. They gave the car back to me while offering no suggestions, they did not even take the time to look at the engine. They even said that they would trade in the car for resale - as if they would let someone else take this defective product. I am lucky I didn't die, and this could have been worse. My problem appears to look much like the recalls of other Santa Fe years around 2015. I have tried for a week to contact Hyundai with no success in getting in contact with a case manager. Failure mileage around 83,000.

On Tuesday April 9, 2019 my wife called me during her drive to work and told me her car was running very rough while traveling to work on a local NY parkway. She said the check engine light also came on. When she came home I tested the obd and saw that the reader said the code was p0302 which signifies a #2 cylinder failure. I was able to bring the car to a repair shop yesterday. The repair shop just called and said the #2 cylinder has no compression. After reading numerous complaints filed here and on other forums, I believe my car has experienced the type of engine failure occurring at an alarming level.

On 7/19/2018, after starting the vehicle, I noticed the engine would not rev more than 4000rpm while in park. Thought this might be a safety feature so didn't give it much thought. I drove the car that day approximately 80 miles, and about 1 mile from my house, while stopped at a stop sign on a city street, the engine died. I was able to get the car started but it immediately died again. I was able to again get the vehicle started and drove it the rest of the way home. No check engine light ever illuminated! drove the car about 20 total miles over the next 3 days with no problems. On 7/23/2018, my wife drove the car to work and the engine stopped running while she was still moving on a busy city street. She was able to pull to the side of the road. The engine would not start again and she had to have it towed to the local Hyundai dealership. Still no check engine light! we bought this vehicle on 7/11/2015. A 36 month old vehicle with approx 30k miles and it breaks down? this problem is not an annoyance. This problem is a safety issue! NHTSA should be ordering a mandatory recall, especially after the problems they had with prior year Hyundai engines.

Hit accelerator and won't shift into gear, loud revs and then hear a bang and the car jumps as it finally shifts into gear. This has happened randomly throughout the life of my car at random, I didn't think much of it, then last week, I start to lose power, and same thing, it happens multiple times on the same drive. Never once when this happens did I get a check engine light. Then it got scary as while on the freeway the vehicle would downshift when traveling at a high rate of speed on its own while in drive. Still no check engine light car finally gets back to correct gear ratio for the speed. Finally the check engine light comes on. Now the car won't shift out of 4th gear, no 1st or second gear.

While driving the vehicle on the highway, I noticed the check engine light came on. I checked the oil level and other fluids. The oil was very low. I put in a few quarts of oil immediately and took the vehicle to get an oil change professionally shortly after. I noticed the engine with hesitate and idling became rough. At the same time, the fuel miles per gallon decreased drastically.