The whole song is just a varied strumming pattern of the same 4 open chords
C,Am,E,F
C Am E F
Back to Santa Barbara, where the people know my name
C Am E F
Down in Isla Vista, where the Freebirds' open late
C Am E F
On DP, life's so sweet, everybody livin' on easy street
C Am E F
We're goin' back to Santa Barbara, where the people, the people know my name
Source: https://tabs.ultimate-guitar.com/tab/radical_something/santa_barbara_chords_1501361