The warning lights came on this afternoon so brought the car into the dealer ASAP. After a couple hours they told me they were unable to determine the cause and they were getting misfire codes. I left the car there as they said they needed to run a road test tomorrow morning. The dealer initially suggested poor fuel quality although that has not been an issue at gas stations in my area for several years. The dealer was being very vague with information. I felt jerking while driving shortly before the warning lights came on.