2020 Kia Telluride

Our vehicle is 4 years old and has been experiencing excessive oil consumption (a quart every ~600 miles) and extreme shaking at speeds between 20-50mph. After months of trying to diagnose the issue we have been quoted a total engine and transmission replacement. After calling dealerships across the East coast for second opinions, this is a common diagnosis for our vehicle year and model and even within our small local dealership they are seeing other 2019 and 2020 Kia models experiencing failed piston rings. Kia declined our request for corporate intervention to address the issue.

The truck was purchased in 2021, with no known issues. In early 2024, it was observed that the truck would struggle to accelerate and started making weird noises like it was about to stop working. The truck received its normal oil changes and no issues were identified by the dealership. In mid-2024, around June, the truck continued to act up after having the oil change completed. The truck was taken to a second mechanic who noticed that the truck was missing a lot of oil after completion of a recent oil change. I paid for another oil change and by September 2024, the truck was now leaking oil. My family's safety was jeopardized because there were no warning lights for me to check the oil or anything else. It was taken to a kia dealership who replaced the timing cannister in October 2024. By December 2024, same issues again. An oil consumption test was conducted in January 2025, and result is the need for a new engine, $10,000. I am unable to receive assistance from any other repair shop because of the known issues with kia engines. I need my truck to be fixed by Kia because this is a known issue from other owners as well.

While traveling at highway speeds between 65-75MPH the vehicle with violently shake while shifting and then lunge forward. However, during the shaking the vehicle is hard to control and feels like it is going to just shut off. This scenario primarily happens on flat roads at the above mentioned speed. However, we have noticed an issue with the vehicle while turning corners and accelerating, as well as, when going up hills or steep highway sections. The vehicle has a V6 but seems to struggle shifting when trying to accelerate even to 40-50MPH. In some instances the vehicle has labored up a hill and seemingly doesn't want to downshift and pick go faster. It seems that this issue has triggered a TSB from Kia, but the issue has potential for elevated risks for other drivers on the road. If the vehicle is unable to maintain freeway speeds or climbing speed, then it poses a risk to traffic on either side of the road and the potential need to pull over. It seems that the vehicle loses power or momentum and would make it very dangerous to get off the road or onto the shoulder. The violent shaking could cause a driver to panic and lose control of the vehicle while at highway speeds and needs to be investigated.

Upon braking the vehicle would run rough and the engine would shut off completely. This was first noticed when my wife was turning into our driveway and turning across traffic. She was heading westbound and slowed down to take a left(northbound) into our driveway. Upon braking the engine started to run rough & as she accelerated to turn into the drive, the engine shut off completely. This left her stranded turned perpendicular to oncoming traffic. The oncoming traffic narrowly avoided an accident and left my wife shaken from the incident. I brought it into the dealer where after multiple days of investigating found the vehicle was 4.9l of oil low. There was no indication of low oil in the engine; no indicator light or sounding of low oil, prior to complete engine shut down. The dealership stated when the vehicle shut off, the low oil light would then turn on. This is possible as when it had shut off on me while bringing it to the dealer, there were 4-5 lights that would turn on when the vehicle shut off. The dealership performed an oil change, which it was near to the mileage for needing an oil change anyways. Since this was completed we have not had any issues since. I am working with the dealership currently on why the vehicle is consuming so much oil, but my main concern is there was no warning or indication before the vehicle shut off while in normal driving conditions. I called Kia service and the dealership today and they stated the light should come on when there is less than .5 qrts of oil left in the engine. They believe I did not reach the threshold for the light to come on, but again my concern is the only first indication of low oil should not be my vehicle shutting off in an unsafe condition.

Oil pressure light failed to engage even though engine started to tick.. resuling in Valves not lubricating effectively. It took until next day for Engine to hesitate. When the Auto start feature engaged( the battery light also showed) This left me at the Lights on green, and i had to put vehicle in park to start the vehicle again. The main issue here is that the low oil sensor isnt coming on fast enough for how low the oil is ( 4 quarts low)

For the past year at least I've had check engine light come on and turn off before being able to get in for a diagnostic. Along with the entire engine shutting down while idling, parking, turning. Whole electrical system failure. Can't move the steering wheel. Have to restart the car and it takes a few tries. Sometimes the car will be off and will not start back up for a while.