Catalytic Convertor problems of the 2012 Chevrolet Equinox

The contact owns a 2012 Chevrolet Equinox. The contact stated that her vehicle would consume an excessive amount of oil as the check engine light would appear on the instrument panel. The contact would top off the vehicle every month at the dealer and was informed that the defect was related to her catalytic converter. The contact also stated that both the power locks and windows would fail to operate as needed which had caused the contact to be both locked inside and outside of the vehicle at various times. The manufacturer had been notified of the failure. The vehicle had yet to be repaired. The failure mileage was unknown.

My car randomly shuts off. It stutters, stalls, jerks, then dies. No check engine light comes on. We have replaced the O2 sensors 3 times, mass air flow sensor, exhaust manifold, intake and exhaust valves twice, alternator, battery twice, spark plug packs twice, throttle body, and catalytic convertor. My car still stutters, stalls, rough idles, jumps while stopped at red lights, and randomly shuts off with no warning. Recently it has been slow to accellerate as well. I was unaware of the oil consumption issue until this weekend. My car says it is 40% oil, it is not due for another oil change for another 1000 miles. After learning about the oil consumption issue I checked the oil, via the dipstick, and my car was bone dry! I never received a low oil warning. I am assuming this is why my car has begun acting crazy in the last year. Unfortunately the chevy dealership never informed me of any oil issues so I have had to contact gm directly, because now my car is at 126,000 miles!!!.