Hello Lauriema2,
Let's use the steps below to forget the Wi-Fi network for your vehicle:
To forget the network that you're currently using:
1. Go to Settings > Wi-Fi.
2. Tap the info button
next to the network you're using.
3. Tap Forget This Network, then tap Forget to confirm.
To forget a network that you've joined before but aren't currently using:
1. Go to Settings > Wi-Fi.
2. Tap Edit in the corner of the screen to see the networks known to your device.
3. Take either of these actions:
• Tap the delete button
, then tap Delete.
• Or tap the info button
next to the network, tap Forget This Network, then tap Forget to confirm.
You can also find those steps in this resource: How to forget a Wi-Fi network on iPhone, iPad, or Mac Afterwards, you'll want to reconnect to the Wi-Fi network. That process can help further isolate a networking conflict.
Should that still persist, are you experiencing this behavior with any other Wi-Fi networks?
Let us know, and we'll keep moving forward from there.