MyChevrolet app hasn't connected to car since October

Thank you for following up with us. Our team regrets to hear that this step did not resolve these difficulties for you. We would like to ask that you complete one more step before bringing this concern to our internal technical team for further handling. Our team has attached the directions below. If this step is also unsuccessful at resolving this trouble for you, please send us a private message, so we can look into this further. Just select the envelope icon at the top right of your screen to get started. When creating a new message, please be sure to enter Advisor_Jack to get connected directly to me. Our team will keep an eye out for your message. 

Detailed Power Cycle Process Steps:

Note:  If vehicle is not currently running (engine on, ignition on), the customer will need to start the vehicle and run for at least 60 seconds.

Note:  Only to be used, when safe for the customer to do so.

1. Enter the vehicle and turn ignition on
   1. Move vehicle to an open, uncovered area, if not already
   2. Vehicle should run for at least 60 seconds
2. Shut off vehicle
3. Remove Key from ignition or Press start/stop button
4. Open the driver’s door
5. Only if Safe to do so, customer to exit vehicle
   1. Key FOB must also exit vehicle
6. Close Driver's door
   1. All other doors, hatch, liftgate should also be closed
7. Lock vehicle doors using Key FOB
   1. Key FOB must be outside of vehicle
8. Critical Step:  Wait ~2 minutes (or until OnStar LED goes out)
   1. This allows time for the OnStar unit and other electrical systems to turn off
   2. At a minimum, the OnStar unit needs to turn off
9.  Re-Enter the vehicle and turn ignition on
   1. Move vehicle to an open, uncovered area, if not already
10. Vehicle should run for at least 60 seconds
11. Retest