The car suddenly showed a ‘BRAKE SYSTEM FAILURE’ and the brakes became minimally responsive, at best. Luckily I was near my house and not going 70 on the freeway or going even 30 downhill on a curvy road! The seat belt started contracting violently multiple times. The parking brake would not work. I could not turn off the vehicle. It would not go into ‘tow mode’. I could not open the trunk. The car was SHAKING. The tow operator needed my help to load the vehicle because there was no braking available. He tied it while it was still on, as it would not turn off. Been at the shop for days already and they have no answers, but this could have been an extremely dangerous situation!