To dream that you are in a crash symbolizes the chaotic side of your life. You are out of control and worried about where you may end up.
If the crash is with another vehicle or there are other people involved, this shows that there are parts of your beliefs and principles that in conflict with others and this is causing you anxiety.
You may feel pressure from others to change how you feel, however you must think carefully about what is really important to you.
If you dream about crashing from a flying vehicle this represents a conflict within yourself. You may have set yourself very ambitious goals and these are proving to be unrealistic, you will come crashing down if you are not careful.