With the systematic Vehicle Diagnostics you know what the status is at any time. In order to be able to react in time, in case of doubt.1
You can stay informed about the condition of your car. OnStar sends you a monthly email. It includes vital current operating data of your vehicle from the oil life up to the tyre pressure. So you always have all relevant information ready at hand.
The warning light in the cockpit lights up? Just press the Service Button and talk to your OnStar advisor. With the aid of the On-Demand Diagnostics the OnStar advisor can determine, if there is a damage, how severe it is, and whether you should go to a repair shop
You actually have to go to the repair shop? Annoying, but OnStar makes it easy for you: Your OnStar advisor sends the address of the next Opel service partner directly to your built-in Opel navigation system2