Purchased a 2016 Kia Optima EX with the premium pa...

Purchased a 2016 Kia Optima EX with the premium package in April 2017 with less than 30 miles from the Fort Bend Kia dealer. At 4100 miles the car stalled and lost all power while traveling on the highway during rush hour. Screen flashed Engine Control System - Possible Engine Condition.
Took the car to Fort Bend Kia who indicated the throttle position sensor needed adjusting and cleaning. Less than 24 hours later the car stalled again on the highway. Have lost total confidence in Fort Bend Kia s service department. Had to have the car towed to Westside Kia in Katy.