Brake dream meaning is explained below using 2 different sources. Each interpretation is shown with its source.

Interpretation 1 — Stearn Robinson - Tom Corbett

You will be offered a new opportunity which will increase your responsibilities if you dreamed of braking a vehicle; if the brake failed or made a noise, you would be wise to consider very carefully before accepting any new offer, as there is apt to be a well-hidden snag.

See also Automobile, Train, Airplane, etc.

Source: The Complete Guide to Interpreting Your Dreams Author: Stearn Robinson - Tom Corbett

Interpretation 2 — Betty Bethards

Control point. Caution, use brakes when needed and slow down; no brakes means out of control, danger. Stop, examine a particular situation before moving ahead; slow down before moving on.
Source: The Dream Books Symbols Author: Betty Bethards