Is says the aid not working

Left rear turn signal not working

Even with a new telematic battery I had installed the remote app and subscription features don’t work. I drive daily and for the last 9 months the app says the telematic battery is asleep. A brand new… 

App and car keep saying Park Aid Malfunction even after changing modem with dealership

Parking aids malfunction service required

Rear parking aid error light on dash. All sensors present not sure where to start. Seems like a common issue.