The electric and gas powered vehicle has been under a safety defect investigation by the National Highway and Traffic Safety Administration.
Chrysler, GM and Ford all showed double-digit growth this month.
Officials with the company say the investment will be used to replace plant machinery and will result in the creation of about 51 jobs.
They are also trying to gain support for the educational facilities in the area.
This week, health benefits ran out for many retired auto workers in Kokomo. Worse, some members of Kokomo's Local 292 were given just one week of notice.