Actually, this has been a tactic that has been far more successful for me than not. I have noticed whenever the iPhone13 gets temperamental, a reboot works. I recently found this on vacation in Canada where the phone signal was weak at the lake-side cabin and would keep switching modes from LTE, to 3G, to 4G, and to 5G every 3-5 minutes. A reboot would help and it would stabilize for a few hours. That area did have dead zones, and I believe they confused the phone.
I have had the center-screen icon in the upper right corner say the phone had "no bars" when connected with Bluetooth, but everything was working. Either a car reboot (shut car, lock it, and then open it and restart it) or a phone reboot would cure it. Generally it appeared to be an iPhone issue, not the Outback, as it was iPhone was rebooted first and fixed it.