RepairPal Certified shops can diagnose and repair your 2003 Kia Rio. They provide transparent pricing with a minimum 12-month or 12,000-mile warranty on repairs and services.
Not sure what you mean but if it's it not shifting and you don't work on cars, then this will need to go to a shop for diagnosis. You can check your fluid but it's probably going to need more than that.
https://repairpal.com/repair-shops
Alex