Vehicle GPS antenna priority when iPhone signal is clearly more stable

Originator:andrei.t.services
Number:rdar://FB16919626 Date Originated:March18, 2025
Status:Open Resolved:
Product:iOS - CarPlay - Apple Maps Product Version:
Classification: Reproducible:Yes
 
Problem:

CarPlay prioritizes vehicle GPS antenna, even when the vehicle GPS signal is clearly broken ( jumping 500 feet every 5 seconds when navigating in the city, making ANY navigation completely impossible )

Detaching the antenna from car receiver disallows CarPlay connection from phone to car

Expected behavior:

Users expect one of two options: 
    A: Fallback to iPhone GPS signal when it is evident that vehicle GPS receiver / antenna is broken (less preferred)
    B: Allow user to choose to prioritize phone GPS signal, if user knows that vehicle GPS creates poor user experience (Best and easiest solution, lowest dev cost)

Reproduction Hardware: Sony XAV-AX6000 CarPlay receiver + downtown city navigation with tall buildings (Seattle Downtown)


I am very curious why not allow for iPhone to be selected as the default GPS source. One of my vehicles has a completely broken GPS antenna, and yet I am forced to use it if I am to use CarPlay. It looks amazing when the vehicle GPS is bouncing around unable to get a solid signal, but when I disconnect from CarPlay to navigate straight from my phone, everything works perfectly.

Comments


Please note: Reports posted here will not necessarily be seen by Apple. All problems should be submitted at feedbackassistant.apple.com before they are posted here. Please only post information for Radars that you have filed yourself, and please do not include Apple confidential information in your posts. Thank you!