Coach Gus Malzahn said Wednesday that Pettway "stayed back [in Alabama] with his family."
The seventh-ranked Tigers will face No. 10 UCF on Monday.
Pettway, who is married and has a daughter, hasn't played in the past five games because of a fractured shoulder blade. The junior has only played in five games this season because of injury or suspension. He has run for 305 yards.
Last season, Pettway led the Southeastern Conference with 124.8 rushing yards per game. He was the first Auburn runner to gain 150-plus yards in four consecutive games since Bo Jackson in 1985, when Jackson won the Heisman Trophy.