Not being able to reach the pedals stands for feeling too small for the role you are in. Dream books read it as doubt about being ready for a responsibility that has landed on you.
When this appeared in your dream, what were you feeling?
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.