"The training center served as a conduit for many of the illegal payments at issue in this case," Assistant U.S. Attorney Erin Shaw said.
A Michigan man allegedly illegally sold employee discounts to non-qualified car buyers for seven years.
Chrysler, Dodge, Jeep and Ram models are hit.
Critics said quoting a Martin Luther King Jr. sermon to sell trucks was "crass and inappropriate."
The online rant diverts attention from policies that will hurt working Americans
Led by Honda and Fiat Chrysler, eight automakers expand the largest-ever auto safety push.
Fiat Chrysler says it is voluntarily recalling about 1.4 million vehicles.
A cybersecurity expert says vehicle hacks could cause fatal accidents or lead to stolen personal data.