2021 Kia Telluride

I believe my engine to be defective and Commonwealth Kia to be neglegent in finding the defect dispite having been tasked to repair an issue while my car was under warranty. I first mentioned the problem on the XXX visit at $85,000 miles. Asked them to check the filters. Mentioned again at the XXX visit at 92,000 there is not documentation of the complaints on either of these visits but it does say ont eh XXX visit that the car "STILL LACKS POWER..." indicating that there have been previous discussions about the issue. The car was at 99,000+ miles at the XXX visit (still under warranty) I returned on XXX and XXX and was told on 1/20 that they FINALLY found the problem and that I would have to pay to have the entire engine replaced. I have since done some research and the issues that I am having are very similar to the Class Action Suit against Kia and the THETA II engine. [XXX] I have also seen on multilple owners boards on social media and in reports found on the internet that 2020-2023 Kia Tellurides have been having the same issues as THETA II engine models. [XXX] I find it difficult to believe Commonwealth Kia Service have not heard similar complaints nor have the ability to diagnose the problem on the first or second mention of the problem (which was while the car was still under warranty) I have called Kia USA who can not help me due to the fact that I am the second owner. The car was sold to me as "Certified Pre-Owned" by Kia. I believe Commonwealth Kia willfully misdiagnosed my problems so as to push the replacement cost to me and not the warranty INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

I purchased this 2021 Kia Telluride new and have had it routinely serviced and maintained by authorized Kia dealerships. At approximately 60,000–80,000 miles, the engine began consuming excessive oil. I reported the condition to the Kia dealer at approximately 80,000 miles, while the vehicle was still within Kia's 10-year/100,000-mile powertrain warranty. The dealer initially recommended a tune-up, but the oil consumption continued. During a later visit, the dealer identified an issue involving the OEM oil-filter housing and replaced the affected component. Despite this repair and continued maintenance, oil consumption progressively worsened. The vehicle now has approximately 160,000 miles and requires approximately one pint of oil every 2–3 weeks. The current diagnosis indicates potential internal engine damage, including cylinder-wall scoring that may allow oil to bypass the piston rings and burn in the combustion chambers. I have been advised the engine may require replacement at an estimated cost of approximately $13,000. My primary concern is that this condition began and was reported to Kia while the vehicle was still under the powertrain warranty, but the repairs did not correct it. Continued excessive oil consumption and internal engine damage create a safety concern because they could result in low oil pressure, engine seizure, stalling, or sudden loss of propulsion while driving. The vehicle is available for inspection, and its maintenance history, prior complaints, dealer repairs, and current condition are documented through Kia dealership service records.

My 2021 Kia Telluride has suffered two consecutive component failures of the rear suspension's self-leveling shock absorbers. This component is the exact subject of Kia's August 15, 2024 Extended Warranty Program (WTY040), which acknowledges a widespread engineering defect causing premature rear shock failures. The factory-installed original shock failed previously. The official Kia genuine replacement part (redesigned by Kia to permanently address the original defect) has now failed prematurely under the exact same mechanical conditions. The failed replacement component bears a manufacturing date stamp of 11/2023. Kia America Corporate is utilizing an administrative loophole regarding the component's manufacturing date code to deny safety coverage, actively refusing to honor or remedy the failure of their own redesigned replacement part. The local Kia dealership service manager inspected the vehicle and formally endorsed 100% replacement coverage due to this premature safety failure, but Kia Corporate has completely stalled the repair (I have had a formal 100% goodwill coverage request submitted since 7/21/26 without resolution), leaving a known vehicle stability defect unaddressed on a public roadway.

Was low on oil and check oil light don't go on have to put oil very 2 week because it get low and I don't have no oil leak at all I found out because the motor start shaking and making noise tow it home and mechanical came to check it out and didn't have oil he say I was lurking I was not in the highway because it could lock the mortar and cause a accident

In August 2025, my Kia dealership serviced my 2021 Kia Telluride and billed me for 7 quarts of oil as part of the repair. Approximately four months later, in December 2025, the vehicle developed severe engine problems and became inoperable. The dealership diagnosed the failure as a collapsed timing tensioner and stated the engine required complete replacement. Kia Techline agreed with that diagnosis and used it as the basis for recommending a new engine. Despite acknowledging that engine replacement was necessary, Kia denied warranty coverage, leaving me responsible for an estimated $11,000 repair. I then obtained a second opinion from an independent, reputable repair facility. After inspecting the vehicle, the shop concluded the engine failure was not caused by a timing system failure. Instead, they found the engine contained only about one quart of oil and determined the damage resulted from oil starvation. They further stated that, in their professional opinion, the dealership had misdiagnosed the vehicle and that the low oil level was consistent with the possibility that the dealership failed to add the oil for which I was charged during the August 2025 service. What is especially concerning is that the dealership never documented or informed me that the engine was critically low on oil. Because the timing components rely on engine oil for lubrication, I believe it would have been impossible to properly inspect and diagnose a timing tensioner failure without recognizing and documenting the severely low oil level. Based on the independent inspection and the dealership's failure to identify or disclose the lack of oil, I believe the dealership either failed to perform the service as billed or failed to correctly diagnose the true cause of the engine failure. I am concerned that this incorrect diagnosis diverted attention from possible negligent workmanship during the prior service and led to an unnecessary recommendation for an $11,000 engine replacement.

While driving this vehicle in route to Philadelphia airport JFK, i experienced a total malfunction of the instrument cluster. All of the warning lights continued to go on and off and were illuminating on the cluster non stop along with a audible chiming, all of wich lasted the 3 hour trip. The car is available anytime. Warning lights/alarms were not only distracting but affected the spedometer which would shut down totally. No dealer or service center has been contacted yet.

My 2021 Kia Telluride (60,500 miles) experienced failure of the panoramic sunroof wind deflector arm/mechanism. The broken component is available for inspection. The failure prevents the sunroof system from operating properly and may result in improper sealing, water intrusion, or further mechanical damage. The issue was confirmed by a Kia dealership. Kia has issued Technical Service Bulletin BOD 319 addressing Telluride sunroof wind deflector arm and mechanism failures. Despite this bulletin, I was quoted approximately $4,000+ for replacement of the entire sunroof assembly instead of the component repair procedure described by Kia. There were no warning lights or messages before failure. The issue occurred during normal vehicle use. I believe this known component failure presents a safety and reliability concern for Telluride owners.