I was driving at the listed speed on the New Jersey turnpike. Without warning, the vehicle went from sixth gear to fourth, rapidly losing speed in the far left lane. The tire pressure indicator light came on flashing, and the traction control light came on solid yellow. I pulled the vehicle onto the shoulder to check the tires, per the indicator, and noticed none of the tires was deflated. When I restarted the vehicle, the tire pressure and traction lights were solid yellow, along with the engine and "at" transmission light. While there was no noticeable effect on vehicle operation once restarted, I could not use the select-A-gear feature of my transmission. I was told at the dealership where I brought the vehicle that there were issues with the transmission control module, and that software updates were required. The vehicle was returned several days later, with the warning lights resolved, but told that they were uncertain as to whether it was a definitive fix. There have been no recurrences since the original incident.

- Rockville, MD, USA