I have upgraded... BUG REPORT
when using Adaptive Cruise, I adjust the set speed by raising the left hand knob... now it sometimes jumps to 85 mph, instead of 1 or 5 mph jumps...
It sounds like there is a HW problem with your roller... you need a service call.
The funny part about all of these posts.... a change to the telecommunications unit (which is what 2.1.62 contained) can't possibly have any effect on iOS widget behavior or AC set speeds... it's a coincidence.