I have 2 iphones that do not discover my bluetooth devices - Beats and my Subaru. What can I do?

Hi Tsjude,

Welcome to the Apple Community.

If your phone isn’t working right, try re-starting it:

Turn iPhone on or off – Apple Support

and

What to do: If you can't connect a Bluetooth accessory to your iPhone, iPad, or iPod touch - Apple Support

________________________________________________________________________________

Re: Beats

You might want to check that you are only connecting earphones to one device at a time

(Eg may not be switching between multiple devices.)

How to: Reset your Beats earphones - Apple Support

Sound troubleshooting – Beats headphones and earphones – Apple Support 

________________________________________________________________________

How to: Resolve Wi-Fi and Bluetooth issues caused by wireless interference - Apple Support

If needed:

There is a "Get Support" link at the bottom of the iPhone Support Team's website:

iPhone - Official Apple Support

All the best :-)