A carjacking is read as having control of your direction taken from you by force. It is linked to feeling overpowered or pushed aside in waking life, and is understood as a picture of that pressure rather than a forecast.
Has this come up in your dreams before? What was going on in your life then?
My Cosmic Code has a private dream journal. Write a dream down and the app picks out the symbols in it, shows what dream books say about them and, over time, which words recur across your entries. The journal is stored on your device only.