How do you reset brake and dsg and 4x4 light on 2005 BMW x3?

To reset the brake, DSG, and 4x4 lights on a 2005 BMW X3, start by ensuring that the vehicle is in a safe, stationary position. Turn the ignition to the "On" position without starting the engine. Press the gas pedal fully to the floor three times, then turn the ignition off. Restart the engine to see if the warning lights have cleared; if they persist, it may indicate an underlying issue that needs addressing.