Let's start with the Basics that isn't listed in you profile.I got an error message about a brake malfunction. The hydraulic brakes no longer work although I can still stop the vehicle with a lot more muscle on the brake pedal. Any idea where the major parts of the ABS system are located? Any ideas on what might have failed?
What year is you car?
Most importantly. Have you or anyone else worked on your car within the last year?