Battery Dead problems of the 2009 GMC Yukon

The contact owns a 2009 GMC Yukon. While the vehicle was parked, the battery failed without warning. The failure recurred multiple times. The vehicle was taken to an independent mechanic where it was diagnosed that the chassis electronic control module failed and needed to be replaced. The vehicle was not repaired. The manufacturer was made aware of the issue and stated that the VIN was not included in NHTSA campaign number: 14v614000 (electrical system). The approximate failure mileage was 40,000.

We have had this vehicle for three years. Roughly every 3 months it will have erratic electrical shorts and most commonly the car will not start because the battery is dead. Sometime the shorts happen while we are driving. When this happens the radio/navigation system turns off and on, the dashboard display flashes off and on, the power door locks go up and down. On a few occasions the air conditioning has switched over to heat only while the blower continued as before. On a few occasions this has happened while driving and the electrical system turned off and the engine turned off,only to then turn back on. The last time this happened while we were driving on the interstate and the car shut down and then turned back on. The vehicle rapidly decelerated and then turned back on and lunged forward. We consider the vehicle unsafe at this point. We have not driven it any more, other than to get it to another repair person where it has been for the last two weeks. We have replaced the battery three times and the battery terminal cables have been replaced twice. We have had the vehicle checked three times at two seperate gm dealers. We have also contacted their phone support. Their only suggestion is to bring it into the dealer every time it happens. This has not been successful. I feel the vehicle is not safe and I have informed gm of this.