Follow the maintenance schedule for your exact vehicle and transmission. Fluid and filter intervals vary, and towing or other demanding use may change the recommended schedule.
Some transmissions have serviceable filters, while others use different arrangements. A lack of a dipstick does not mean the transmission cannot require inspection or maintenance.
Certified Transmission in Bellevue, NE can review the vehicle requirements and your service history. If you already have slipping, delayed engagement, or a warning light, arrange diagnosis rather than assuming a fluid change will correct the problem.