How do you program 2 different vehicle built in openers to a garage door?

I just programmed the built in automatic garage door opener in my husbands truck today. Now the built in one in my van is not working. Can you have 2 cars programmed at the same time and if so how do I do it? One is a 2010 Ford F-150 and the other is a Chrysler town and country.

Please see owner's manual. The usual way for this is to change the program in the vehicle, not the one in the opener. Two [or more] vehicles should be able to have same code

I just did that for a customer of mine and had to program them from the opener using the program button on it. Most openers can handle multiple vehicles/remotes and are setup that you press the program button on it until the LED light blinks a series of blinks to show it's ready for programming/receiving… Then press the remote button on one vehicle or remote fob until the light stops blinking or blinks again… Then press the program button again to save it. Repeat for a second vehicle/remote. Check the operators manual for your specific opener or online instructions or call the 1-800 tech hotline for the opener company and they can usually walk you through it.