Battery often looses charge. Battery and alternator have been checked and fine

Hello, Often when the battery and charging system check out fine there is a small electrical current that is draining the battery. Professionals in the automotive repair industry regularly refer to this as "parasitic draw". This type of problem will require an Automotive Technician with advanced electrical training to perform a parasitic draw test. In most cases the test reveals a component that stays on after the ignition switch is turned off. Best Regards, Lance www.autoexcel.com

Do you have satellite radio installed? Go to sat 1 in your radio. If your display goes blank then there is an issue with what's called the rdar module glitching out. Will cause a parasitic drain. Dealer has a software to fix this issue. Very common on these cars. Does not matter if you have a subscription or not.