Dara Khosrowshahi, chief executive officer of Uber, looks on following a 2018 event in New Delhi, India.

Uber is deploying its top executive Dara Khosrowshahi in a series of national commercials — a rare Silicon Valley CEO spot appearance — to improve its reputation and, likely, its market share from rival Lyft.

The shorter of two commercials features Khosrowshahi dispensing wisdom from his father and vowing that under his leadership, Uber will be a "much, much better service."

Khosrowshahi took over the top spot at Uber last year after its embattled founder Travis Kalanick was ousted. He's become the face of Uber's turnaround in the months since, promising to deliver better rides for users and better working conditions for drivers.

"Moving forward, it's time to move in a new direction. And I want you to know just how excited I am to write Uber's next chapter," Khosrowshahi says in the longer, 60-second commercial.