According to a news release from IndyCar, Olson was suspended for attempting to impede the conduct of the event by encouraging others to breach contracts with IndyCar and withdraw from the David Hobbs 100, the Indy Lights race in Milwaukee earlier this month. O2 Racing Technology was the only entrant to withdraw, removing its No. 36 and 63 entries from the participant list.
IndyCar says the actions violated Indy Lights rules.
Olson can appeal the suspension. A protest could result in an increase, decrease or no change to the penalty.