2017 Kia Sorento power train problems

“2017 Kia Sorento 2.4L GDI engine seized due to connecting rod bearing failure confirmed by P1326 diagnostic code multiple times. Vehicle entered limp mode limiting RPMs to 1800-2000 exactly as described in PI1802 campaign. Engine subsequently fully seized. Battery tested 98% healthy ruling out electrical cause. Vehicle towed to [XXX] Kia Avon Indiana. Kia Techline and Consumer Affairs denied PI1802 lifetime warranty claim citing used vehicle reconditioning despite PI1802 explicitly stating coverage applies to both new AND used vehicle owners per official Kia corporate document dated XXX. Consumer Affairs appeal case XXX opened but Kia states no further appeals possible. Kia is wrongfully denying lifetime warranty coverage guaranteed under PI1802 Product Improvement Campaign.”

“Following an engine replacement performed at Billion Auto Kia in Rapid City, SD, I began experiencing persistent electrical system failures in my 2017 Kia Sorento. The vehicle alarm would activate randomly without cause, including while I was inside the vehicle with the engine running. Additionally, the door locks would engage spontaneously, trapping me inside the vehicle and preventing me from exiting. The only way to exit was to forcibly pull the door handle, which triggered the alarm. I have video documentation of these incidents. I presented the vehicle to Billion Auto Kia in Rapid City, SD — an authorized Kia dealership with these exact symptoms. The service department was unable to identify a root cause and provided no repair path, returning the vehicle to me unrepaired. 7 months later, Courtesy Kia of Brandon in Brandon, FL, another authorized Kia dealership diagnosed the root cause as a failed Body Control Module (BCM). During the service visit, a Kia dealership technician personally witnessed the alarm activating spontaneously while operating the vehicle, further confirming the defect. The BCM failure was present and active at the time of the prior…”

“Vehicle has a recurring P0018 fault code (Crankshaft Position - Camshaft Position Correlation Bank 2 Sensor A). Dealer diagnosed loose cam pins on Bank 2 requiring major engine repair. This fault creates a safety risk as improper camshaft timing can cause unexpected engine stalling while driving, resulting in sudden loss of power, power steering, and brake assist. The manufacturer has denied warranty coverage despite the vehicle being within the 10-year/100,000-mile powertrain warranty. This appears to be a known widespread issue on the 3.3L V6 engine. Vehicle has 96,000 miles and is still within warranty coverage period.”

“I found that he ignition key can be removed from my 2017 Kia Sorento while the transmission is not in the Park position. This is a shift interlock failure. Under FMVSS 114, the key must be trapped in the ignition unless the transmission is confirmed in Park. This defect caused the vehicle to roll down my driveway after my wife & daughter exited the car & were unloading groceries. The vehicle was purchased in April 2026 from a used car dealer lot. The defect was discovered shortly after purchase. No dealer repair has been performed yet. I am contacting Kia Consumer Affairs requesting a goodwill safety repair under FMVSS 114. Component affected: Power Train — Automatic Transmission — Shift Interlock System”

“The car started sticking when driving then a knocking in the engine. Upon investigation/ diagnostics we found that the engine is blown and needs replacing. I have owned this car for 3 years to date and have keep up on all maintenance which you can find on carfax there is no reason at 136,000 an engine should blow. I would like this fixed asap”

“I am reporting a serious defect involving my 2017 Kia Sorento 2.4 Liter GDI engine (VIN [XXX] ) At approximately 84000 miles, while still under the powertrain warranty, I brought the vehicle to the dealership from which I purchased it (Hutchinson Kia in Macon GA) due to engine hesitation and abnormal performance. I was initially told the engine might need replacement, but the dealer later claimed the issue was only a relay/software problem and performed a software update (likely the KSDS knock sensor update) At approximately 94000 miles, the engine suffered a SUDDEN CATASTROPHIC FAILURE while driving on the interstate, The failure was abrupt and created a dangerous situation in traffic. The Vehicle is now inoperable. The engine is equipped with the THETA II GDI engine, which has a documented history of bearing and connecting -rod failures, fires and sudden engine seizure. KIA is refusing to cover the failure, even though the symptoms began during warrantly and the KSDS update was reportedly completed. This appears to be consistent with the widespread THETA II engine safety defect previously investigated by NHTSA. The sudden failure of the engine posed a…”