Earlier quoted context omitted.
> 'Maintenance free' transmissions are very common in newer cars I take advantage to your comment to write this PSA (that probably you already know): All transmissions require maintenance, and even manual ones. Those automatic tagged as 'maintenance free' from the brand aren't, and if you call the manufacturer of that transmission, Getrag, ZF, or whatever it is, they should say which ATF and filters it needs and in w…
How does find a phone number for General Motors that lets someone talk to the person who knows these details and is both willing and able to relay them? [insert rant here about BMW's "lifetime" fluid in the 4L30E that they used in E36s]
Checking that state of the fluid isn't difficult, as is bright red when it's new, and turns more and more brown when it's used, and it's mostly used normally between 50k and 100l AFAIK.
Buying the required fluid, and filter if needed, is as easy as looking it in the internet or going your local AutoZone, O'Reillys, AAP, or whatever you have near btw