Dipstick on diesel

It should have a dipstick to check the engine oil; it should be identified by an orange knob. But it doesn't have a dipstick to check the auto trans fluid, the trans is a filled to life at the factory, and theoretically doesn't need changing. What that means is beyond me, as "life" could mean anything. Like you I like to keep track of oil levels and oil condition and I would be changing the trans fluid on a regular basis.