Tl* the contact owns a 2004 mitsubishi montero. while driving approximately 60 mph and attempting to engage the brakes, the brake pedal was hard to depress. the emergency brake had to be activated in order to stop the vehicle. also, the contact heard an abnormal noise from the driver side of the instrument panel when the brakes were applied. the dealer stated that the hydraulic booster system needed to be replaced. the vehicle was not repaired. the manufacturer was notified and informed the contact that the vehicle was previously remedied according to nhtsa campaign number: 01v254001 (service brakes, hydraulic). the approximate failure mileage was 189,000.