Went to start up and initially the radio and systems came up. Never got going. The Battery Saver Active message came up. Under the battery symbol it shows a wrench. I checked the battery voltage which read 9.39 V and dropping. In a half hour it read 8.55 Volts. The car won't shutdown, at least the start light looks on. Called the dealership, but couldn't get anyone to talk with me. At least it is parked at home. Suggestions?