In 2003, Lazier returned with Hemelgarn Racing to drive the No. 91 Dallara IR03-Chevrolet. At the season-opening Toyota Indy 300 at Homestead, Lazier withdrew from the race and missed his first IRL race since the 1996 Dura Lube 200. At the following race, the Purex Dial Indy 200 at Phoenix, Lazier started in 15th place and finished in 11th place, two laps down. Lazier then started in 17th place and finished in 19th place at the Indy Japan 300 at Twin Ring Motegi due to an engine failure after completing 63 laps. At the Indianapolis 500 Lazier qualified in 21st place. Prior to the race the team gained additional sponsorship from Victory Brands. Lazier retired from the race after 171 laps due to an engine failure. At the Bombardier 500 at Texas, Lazier started in 19th place and finished in 13th place, four laps down. Lazier then got his only top 10 finish of the season with a 10th-place finish at the Honda Indy 225 at Pikes Peak. At Richmond, Lazier started and finished in 20th place, six laps down.