Frequently charge a fee for the wireless download that powers their OTA updates. Standards and common platforms, those are needed especially when the updates relate to the drive system. And to detect the problems after it arrives and whether it was properly installed because you may have to do a rollback. Maybe adding some apps or apps support for smart phone connections. Car makers know different owners would value different updates.Things such as this is a very strong case to be made for car companies paying attention to ad usage with their smartphone connectivity platforms and making adjustments in their user interfaces if they need to, or deleting apps that nobody's using. They can't do them all, they have to know which ones are gonna hit pay dirt.
If required consider implementation of other means of protection from being hacked, e.g.For more information on the DFU process, see Device Firmware Update process.For DFU bootloader examples, see DFU bootloader examples.Module has to be exposed wirelessly to get it updated with a new sketch.That poses chances of module being violently hacked and loaded with some other code.