RE: setting the universal garage door openers?
Try this. . . .
Press any two adjacent door remote buttons (on the overhead console) for 30-45 seconds to 'erase' any code currently set-up.
Next - With one of your garage door opener's (factory) remote (and near the opener, itself - - - I do it inside the garage) hold the factory remote next to one of the buttons in the van and press both the factory remote button and the van's button until a little 'house' in the overhead console starts to flash.
That's it!! You're done!
The key is pressing and holding the two together. The van's system is 'learning' the code.
Repeat the process for any other garage door opener you want to program, using one of the other two buttons.