My Rogue Select had hill descent programming - and also a noticable hill ascent - to control the drive ratio.That was in response to pimtac who had mentioned how the new automatics have a computer to "select" the gear for you while going down a mountain.
I bought my car with a used CVT.... 39,990 miles on it when I bought the car....
Now at 317,400 miles and counting. On the orginal CVT too.
Lots and lots of highway miles . Plenty of cool air while cruising does help a good amount I'd bet.
It would often kill injector fueling and use engine braking on steeper sections.
I couldn't defeat it - most of the smaller hills I like to gain speed to get back up the Camel's Humps coming out of the gorge. SO I had to throw it in N and risk the unloaded drivetrain. And the car ate ALL of it's undersized brakes in 25 K miles. And the Rotors. Thanks Nissan.
BTW A savvy tech can address and adjust most of this in the software options. If you can find a savvy tech. Most don't care.