During the initial fight in the house between Cameron and the rival Terminator, the shot gun Sarah pulls out of the wall is the same model the character used against the T-1000 in the final scenes of Terminator 2: Judgment Day (1991).
Aaron James Cash who plays the dream sequence Terminator was sitting in a coffee shop opposite Josh Friedman and asked him what he was writing on his laptop. The conversation eventually led to him being cast in the role.
When Cameron is saving John in the school parking lot from the evil terminator she says, "Come with me if you want to live." This is a line said in every Terminator movie by the good Terminators to the person they are there to protect.
Cameron eats a chip. The concept of Terminators eating food to generate skin regeneration was an idea of James Cameron.
Cameron tells Sarah that she is from the year 2027 and that Skynet goes online in 2011.