Ok next question. How do you put the Cruze into 'Learn mode'? Scan tool?
Refer to that book of forbidden verses called an owners manual.
Seriously though, on the cruze you should have a menu button on your dash or turn signal stalk, that will allow you to scroll to a screen on the driver's info center showing your four tire pressures, once at that screen, you should be able to press the set/clr button to enter relearn mode. Then you can ping the sensor by either using the GM orange tool (less than a $100) or another TPMS tool or scan tool.
There's no uploading through the DLC with the cruze.
The caravan doesn't track individual tire pressures by position so, I wouldn't worry about relearning those. The light will come on when a tire is lower than another.