I am having this same issue. Badge notification will not clear, no matter what I do.
- I've drilled down into the "info" on all my vehicles; no services are outstanding.
- I've turned Badge Notification to OFF in Advanced Settings.
Neither has worked. Please, can someone help me to clear these badge notification? It's driving me crazy.
eta: I'm running Gas Cubby 2.7 in iOS 8.0.2 on an iPhone 6; all of my original data imported over when I switched from my iPhone 5.