I bought a new iPhone 16 recently and connected with my car (Hyundai Venue) I couldn't able to see WhatsApp. I researched and found some forum, but the suggested steps are not workable or not suitable for latest iOS version.
I have updated iOS and WhatsApp, nothing helped to resolve.
Note: Earlier I was used Pixel phone I can able to see Whatsapp and I can make a call
We appreciate your interest in participating in the forums! These forums are for questions about developing software and accessories for Apple platforms. Your question seems related to a consumer feature and is better suited for the Apple Support Communities
https://discussions.apple.com/welcome
Albert Pascual Worldwide Developer Relations.
Speak to the people who write WhatsApp, i.e. Meta.