@ 40K miles now. Fluid looks good, slightly clear blue, (particulates in fluid expected to be dust entering through vent tubes).
"sealed transmission=lifetime fluid", therefore no servicing needed.... But...
Personally thinking about doing a transmission fluid change at approx 60-70k miles, will need to check condition of fluid then...
Transmission fluid change=
- drain old fluid
- drop pan and replace trans filter/strainer and gasket
- replace with new fluid