We went on vacation for 16 days and left my 2017 Malibu at a nearby long term parking lot. When we got back, we discovered the car battery was dead. AAA gave us a boost and I drove home 16 miles taking about 30 minutes. The next morning my battery was again completely dead.
I was told by Onstar and the dealer that the Malibu battery can go in to hibernation after 10 days. After 15 days, itis possible to completely drain. This doesn’t sound right because there could be many occasions where my car won’t be driven for 2 weeks. Is this a defect? I can’t believe a car battery can completely go dead in 2 weeks. They explained that there are so many electonics being maintained while the car is parked, that the battery will slowly drain and it needs to be started during that time to keep it charged.
I towed the car to the dealer the next day and they recharged the battery and it is running normally on a daily basis. I worry on my next vacation or business trip I will return to a dead battery, again. Is the only option to disconnect the battery while away on vacation for two weeks or more?
Is this normal for new cars?