Let's look at the sentence: "Using GPS, we can unlearn finding our way on our own."
There is a small grammar mistake here. The word "unlearn" means to forget a skill, which is okay, but the phrase "unlearn finding our way" is a bit confusing.
A better way to say this sentence is: "If we use GPS a lot, we might forget how to find our way on our own." or "Using GPS a lot, we might stop practicing how to find our way by ourselves."
So, the corrected and clearer sentence can be: "If we always use GPS, we can forget how to find our way on our own."