Joined
·
631 Posts
I do this every time I come/go anywhere. I'm not in high gears though (never really tried it on the highway). When I crest the hill at the top of the canyon, I hit the EB, wait for it to upshift to 4th due to the lack of throttle, then drop it into L (3rd gear). I just hold it there all the way down, tapping the brakes as necessary on warmer days to keep it within 5mph of the 35mph speed limit. Does not down shift unless I tell it, which I don't because I don't want it to rev to the moon.
If I have cruise on, it'll downshift to the moon once it gets to some mph over the set point. If I have EB and cruise on, it'll shift to the moon with a lower threshold over the cruise set point. It WILL down shift if I'm going very slowly (like when I pull into the driveway), but not for braking purposes that I've experienced.
I wonder if there's a difference in GM's trans tune from year to year?
If I have cruise on, it'll downshift to the moon once it gets to some mph over the set point. If I have EB and cruise on, it'll shift to the moon with a lower threshold over the cruise set point. It WILL down shift if I'm going very slowly (like when I pull into the driveway), but not for braking purposes that I've experienced.
I wonder if there's a difference in GM's trans tune from year to year?