2021 Kia Telluride transmission problems

Filed Nov 3, 2026 · Seats, Transmission · TN

While operating the vehicle, severe unaddressed oil consumption has led to powertrain concerns and potential engine failure. Additionally, the vehicle is subject to unresolved safety recall 24V‑407 regarding the power seat motor fire hazard. Despite bringing the vehicle to the dealership for routine maintenance and presenting these safety and mechanical issues, the service department has failed to provide necessary repairs or authorize a safe replacement/loaner vehicle, leaving the vehicle a safety concern.

Filed Sep 21, 2026 · Engine, Transmission · OH

I purchased my 2021 Kia Telluride S new, with only 22 miles from the test drive. XXX (approx. 53,000 miles, vehicle age 18 months): The transmission failed while I was traveling approx. 75-80 mph on a major highway in [XXX]. Upon failure, the vehicle suddenly lurched as if the brakes had locked or the parking brake had been applied, nearly causing us to strike our heads on the dashboard and creating a hazardous situation for other traffic. After the failure, the vehicle would only operate in approx. first through third gears and reverse, and would not exceed 25 mph. We were forced to limp the vehicle off a busy six-lane highway. XXX: Due to parts delays, the vehicle was not returned until November 2022 after the transmission work. XXX (approx. four months later): The vehicle developed engine knock and excessive oil consumption. Advised this may have been related to oil degradation while the vehicle sat waiting for parts. Since then, I had to regularly check and add oil between oil changes. Despite low oil levels, no oil pressure warning light ever appeared. XXX (exact date unknown): While opening the sunroof at a stop, a loud crack occurred and pieces of the sunroof track, plastic and metal, fell onto me and my passenger. The glass is intact but became partially stuck open without the track to guide it. XXX: The engine knock worsened and became a squeal while driving approx. 60 mph. The vehicle lost power, requiring me to turn on hazards and coast off to avoid accident. Dealership mechanic advised that the engine had thrown a rod and blown the oil filter housing gasket. The vehicle is currently at the dealership and available for inspection. Kia has denied coverage despite the failure of a component linked to excessive oil loss and a recently extended 180,000-mile warranty, even after the engine threw a rod following a sudden loss of oil pressure. The failed transmission has likely already been disposed of. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Filed Aug 12, 2026 · Engine, Transmission · FL

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

Filed Aug 6, 2026 · Engine, Transmission · MA

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.

Filed Jun 26, 2026 · Suspension, Transmission · FL

AWD coupler assembly failed twice and company will not repair. Rear shocks thumping and noisy, company repaired twice but still inop.

Filed May 25, 2026 · Electrical, Engine · TX

I own a 2021 Kia Telluride with approximately 111,000 miles. I initially brought the vehicle to a Kia dealership for an oil consumption issue and engine noise. The dealership diagnosed and repaired a timing chain and tensioner issue, stating the vehicle was “working properly” upon return. After picking up the vehicle, I immediately began experiencing electrical warning lights, including the battery warning light and system alerts (blind spot and general warning indicators). I returned to the dealership, where they performed diagnostic testing and indicated a potential alternator issue, but stated it was in a “borderline” range and that the vehicle was safe to drive. Shortly after leaving the dealership, while driving with my family in the vehicle, the electrical system began to fail. Multiple warning lights illuminated, and the vehicle lost electrical function while in motion. The vehicle ultimately became completely inoperable and shut down in a parking lot, creating a serious safety concern. Prior to the dealership visit and repairs, the vehicle had no history of electrical issues, warning lights, or charging system problems. The dealership later acknowledged that the alternator issue was not present when the vehicle was initially brought in. I am submitting this complaint due to the sudden and complete electrical system failure while driving, which posed a significant safety risk. The progression from no prior symptoms to total failure immediately following dealership service and diagnosis raises concerns about vehicle reliability and potential safety defects related to the charging system.

Filed Apr 15, 2026 · Engine, Transmission · KS

Bought my 2021 kia telluride sx with a cpo warranty with a little over 69,000 miles. at about 73,000 my car began to smoke and the dealership that I bought the vehicle from kept it for the day and sent me on my way with no diagnosis just simply stating they couldnt duplicate the issue and confirming they did NO testing on the vehicle. They stated that they topped the coolant and checked the oil in which my oil was in good level. 2 days later I checked the oil trying to figure out why my car was smoking and my dipstick had NO reading and no signs of oil. I topped the oil and immediately took the car to a different dealership where we began doing 1,000 mile testing on oil consumption and losing 1.5 quarts -- CPO warranty will NOT cover the issue because they stated it is A KIA WIDE ISSUE AND RECALL and even though I dont have specific recall they still refuse to cover. My car has been deemed as needing a motor replacement at 78,000 miles. Kia america DOES NOT stand behind their issues and refuse to help and they have denied the claims that have been made even after being escalated, they also refused to give a denial letter in writting or a reason why it was denied!

Filed Apr 9, 2026 · Body, Transmission · PR

Hello, I've contacted customer service for Kia America and also, customer service in Puerto Rico since I'm a resident in Puerto Rico, so that I can address the safety recall with number SC303 and also a technical service bulletin with number BOD319. However, customer service advised that they can't pull up my SUV vehicle information with the VIN provided. I'm unable to address the safety recall and the technical service bulletin since Kia can't pull up the vehicle information. My vehicle is experiencing technical failure with the intermediate shaft as described on the safety recall. Also, the sunroof is experiencing technical difficulties compatible with the information included on the TSB. I ask for your support to address the described issues, accordingly. Thank you!

Filed Feb 4, 2026 · Engine, Transmission · OH

Component/System Failure: The engine and lubrication system appear to be malfunctioning. The vehicle has repeatedly experienced sudden engine shutdown while stopped at traffic lights and during low-speed operation. The dealership has identified oil leakage involving the oil pan and oil filter housing and has indicated there may be an internal oil leak within the engine. The vehicle is available for inspection upon request. Safety Risk: When the engine shuts off unexpectedly, the vehicle loses propulsion in active traffic. This creates a risk of rear-end collision and prevents immediate maneuvering out of traffic flow. The loss of engine power while stopped or moving at low speeds presents a serious safety hazard to myself and surrounding drivers. I am concerned that the suspected internal oil issue may lead to catastrophic engine failure while driving. Dealer Confirmation / Reproduction: The issue has been reported to the dealership multiple times beginning in January 2025. The vehicle has undergone multiple inspections and repair attempts, including partial fuel injector replacement, battery replacement, and an oil consumption test. The dealership has acknowledged oil leakage and has stated that replacing the oil pan gasket and oil filter housing may not resolve the suspected internal oil leak. The defect has not been permanently corrected. Inspection by Manufacturer or Others: The vehicle has been inspected multiple times by the dealership. The matter has been escalated to Kia Corporate for review. No police or insurance inspections have occurred, as no collision has yet resulted from the stalling events. Warning Lamps / Symptoms: During each stall event, the check engine light illuminates along with multiple dashboard warning lights. The stalling first began in January 2025. Oil-related concerns and possible oil loss were reported during prior service visits. The condition continues despite repair attempts.

Filed Jan 9, 2026 · Fuel system, Transmission · MA

The vehicle decelerated in the highway, from about 70mph to 40mhp with no warning, no check engine light, and no previous symptoms, sounds or other indicators. The vehicle was brought to the dealer who advised the high pressure fuel pump went bad as well as the solenoid and OCV harness, causing oil to be forced through the harness. KIA refused to cover the repairs at 74k miles and it was fixed at the owner expense, even after KIAs long history of failed high pressure fuel pumps in many other models. We were in the fast lane and were almost hit by a semi, who was thankfully able to move over at the last minute, narrowly averting the deaths of both my children, myself, my nephew and brother at aprox 4am.