That may have been true at one time, but for the Getty Center (the main museum site) you don’t have to have reservations for parking. The times I’ve been there, we didn’t make parking reservations and finding a parking space wasn’t a problem.  However, since it is popular, I’d choose an off-peak time (i.e. - weekday afternoon).  Here’s more info on the Getty site: http://www.getty.edu/visit/

Rhonda

Just want to know, someone told me I have to make reservation for the parking, is that true?