In 2014, he drove for Joe Gibbs Racing in its No. 54 Toyota Camry for a part-time season. Hornish drove seven races in the No. 54, also driving the No. 20 Camry at Michigan (where he finished second). In the No. 54, he started on the pole at Talladega and Mid-Ohio. The highlight of Hornish's season was his victory in the Get To Know Newton 250 at Iowa Speedway, where he started in second place and led for 167 laps. Despite his limited schedule he finished 27th with 242 points, the highest-ranked driver with less than ten starts. Gibbs tapped Hornish to drive the Auto Club 400 at Auto Club Speedway in the No. 11 Camry when regular driver Denny Hamlin was sidelined by a severe sinus infection, and he finished 17th.