Venable's bases-clearing three-bagger in the eighth inning highlighted a five-run outburst that iced the win for San Diego, which had begun the season with five losses in six road games.
Nick Hundley added a solo shot in the victory.
The Dodgers' Ronald Belisario (0-1) absorbed the loss after surrendering a run in the seventh.
Uribe bashed a two-run homer for Los Angeles.
Jordana Brewster on Paul Walker: 'He was an enormous presence in my life'
Beyonce flaunts bikini body, Blue Ivy in vacation pics