Have only had the LaCrosse Essence Package (beautiful car) for 3 weeks and have had to have it jumped twice in the garage by GM. After a better examination by the Dealer, they say it is the On/Off switch is malfunctioning and draining power. They are replacing as soon as the part arrives. Hopefully this fixes the irritating problem. Other than that a great car with a LOT of electronic components and gadgets. Dealer and GM have been very responsive.