Unable to Sync emails to car's HU over bluetooth. I am using iphone 5 and have set up a gmail account on it. Also, the basis notification settings mentioned on some site have been done.Can someone answer it?

Unable to Sync emails to car's HU over bluetooth. I am using iphone 5 and have set up a gmail account on it. Also, the basis notification settings mentioned on some site have been done.I tried doing the following still the email sync is not working.?

Here's the step by step: 1. Go to Settings --> Notifications --> Mail --> Select any of your email accounts

2. Notification Center: ON

3. Alert Style: Banners or Alerts (I've only tested it to work with Banners...)

4. Show Preview: ON

5. View in Lock Screen: ON