Engine Stall problems of the 2012 Buick Verano

The contact owns a 2012 Buick Verano. The contact stated that while driving at 70 mph, the engine stalled without warning. The failure recurred numerous times. The vehicle was taken to a dealer where the failure could not be determined. The vehicle was not repaired. The manufacturer was notified of the failure. The failure mileage was approximately 112,000.

While driving at 65 mph in the right lane of a 4-lane divided highway, my engine quit, and all gauges went dark. I had steering, brakes, turn signal and hazard lights, and telephone. I was losing speed, and was unable to accelerate. However, I was able to coast to the shoulder of the highway. I was not able to restart the car. I put on the hazard lights and used my cell phone to call the dealer. After 10 - 15 minutes of waiting, I was able to restart the car. A representative from the dealer had just arrived and followed me to the dealership. They kept the car overnight. They could not duplicate the episode, so they reset the computer. I am suspicious that the computer activated the engine immobilizer feature. The engine stall was preceded by several instances of the intellilink screen going dark, as though the light bulb had burned out.

The engine of this new 2012 Buick Verano stalled four times. The first time was in freeway. The second time was in front of a red light. The third time was in a local street at ~35 miles/hour. The fourth time happened when the dealer service department was driving it. Similar problem every time: the engine suddenly stalled and became very rough. The car cannot go faster than 10 miles/hour for a minute or two and the engine would completely die. There's always a misfire code. The vehicle appeared ok after 5-10 minutes later but the "check engine" may stay on. The dealer service department suspected the fuel was bad. What's ironic is that the engine stalled again when they were driving it after they drained the fuel and put in new gasoline. This is a brand new car from Buick with ~600 miles on it. Something is seriously wrong with this vehicle and the sudden stalling of the engine carries too high risk of rear-end collision.