My app is not updating the fuel % and mileage left.

We appreciate your connection and regret to hear that your mileage and percentage full have not been updated, @Ak1229. Your comments are important to us, and we aim for you to have the best possible experience with your Encore GX. As an initial troubleshooting step, we recommend uninstalling and reinstalling your mobile app, even if you have done so already. This helps to ensure you have the most updated version for top performance. From there, perform a global refresh by pulling down from the top of the screen when in the Vehicle Status feature. If you are in contact with OnStar parties already, please continue working closely with the agent in any existing case you have. They will remain in prime position to provide you with available information and help surrounding your remaining concerns. We are happy to investigate the status of your situation and offer any added support we may be able to. To reach us, send us a private message to OnStar_Support with more details, including your full name, email, phone, your VIN  and OnStar account number. Just select the envelope at the top right of your screen to start. By sending us a message, you consent to the information you provide being monitored and recorded by GM or those acting on GM’s behalf, subject to the GM Privacy Statement: https://www.gm.com/privacy-statement.