NHTSA Complaint #11670873 — 2016 KIA SORENTO

While driving on the highway, the vehicle engine began to shake violently. The check engine light came on. The car was driving normally prior to this moment. The car has been well maintained and is in excellent condition. I looked it up and found tons of cases that reference a judgement directive from the Theta II Engine Class Action Settlement (Case No. 8:17-cv-00838-JLS-JDE), where the warranty coverage has been extended due to known engine issues. The KSDS software update (SC260) was installed in 2023, by Kia of Orange Park. The vehicle now has approximately 127,121 miles. We towed the vehicle to Daytona Kia who diagnosed the engine as failed, but declined to initiate a warranty claim or submit the case to Kia Corporate because diagnostic trouble code P1326 was not present. I purchased this diagnostic for nearly $200 from Daytona Kia and they verified the second cylinder failed. They blamed it on a sticking fuel injector, but did not verify that this was the issue. Only stating that they believed this to be the case in their review. They did not conduct testing to rule out rod bearing failure or to verify fuel injectors were to blame for the issue. I asked for that. They checked to see if the service manager would be willing to do a BCS test on the vehicle. It was denied. I asked for definitive verification of the cause of the failure. They said I would have to pay for additional diagnostics to start that process. I contacted Kia corporate and asked them to intervene. Kia has denied my warranty claim, stating that the failure either doesn’t qualify under their extended warranty or that the lack of formal documentation disqualifies my case. In a recent interaction with the dealership, they also cited the lack of a specific diagnostic trouble code (DTC) as a reason not to proceed with warranty repairs…despite the fact that many vehicles with this engine fail without triggering that code, and the software update (SC260) was already applied.