What a transmission service actually is
A transmission service and a transmission repair are two different things. A service is routine, planned maintenance: the old transmission fluid is drained and replaced with the fluid your model calls for, and the transmission is checked over. A repair is what happens after a fault has been diagnosed. We do that work too, but it is booked, quoted and charged as its own job rather than as part of a service.
The honest answer on timing is that no single mileage number fits every Acura, because the interval depends on the model, the transmission and how the car is driven. Most recent Acuras carry a system called Maintenance Minder, which keeps track of how the car has actually been used and puts a code up on the dashboard when a service is due; your owner's manual lists what each code covers. That is the guidance we follow. If you do not have the manual on hand, call us with your model, year and mileage and we will tell you what your car is due for. You can read more about how the system works on our Acura maintenance page.