2015 volkswagen passat erratic shifting and brakes either too soft and won't stop quickly or they lock up and i can't move the vehicle. the problems are mostly in town driving, but once occurred in highway driving going up a hill while passing. in that incident the tachometer went from 2 to 5 as the car lurched forward. while at a stop light, the engine revved up as if i were pressing the accelerator, although i was not. after the camshaft was replaced, per the recall, the vehicle performed even more poorly than before. the vehicle began shaking violently. over the next week, the lurched at two different stops signs; the engine revved up to 5,000 rpm's without the accelerator pedal being pressed; the brake pedal locked up not allowing the vehicle to reverse; and several times, it took an extra amount of time and distance to stop the vehicle.