Actually there is even worse situation with the Xcode 11 GM, the CarPlay Simulator screen doesn't show anything and crashes with:
Application Specific Information:
*** Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: 'Invalid parameter not satisfying: bundle'
terminating with uncaught exception of type NSException
abort() called
CoreSimulator 681.5.1 - Device: iPhone 8 (EBA94B1E-F366-415C-9B8D-AB01D48C3920) - Runtime: iOS 13.0 (17A577) - DeviceType: iPhone 8
Application Specific Backtrace 1:
0 CoreFoundation 0x00007fff23b98bde __exceptionPreprocess + 350
1 libobjc.A.dylib 0x00007fff503b5b20 objc_exception_throw + 48
2 HMFoundation 0x00007fff38181c53 -[HMFLocationAuthorization dealloc] + 0
3 CarPlay 0x0000000106235ec0 CarPlay + 167616
4 CarPlay 0x000000010620fe05 CarPlay + 11781
5 CarPlay 0x000000010627f37e CarPlay + 467838
6 CarPlay 0x00000001062207c0 CarPlay + 79808
7 CarPlay 0x000000010626b18c CarPlay + 385420
8 CarPlay 0x00000001062425e0 CarPlay + 218592
9 CarPlay 0x000000010628cfdc CarPlay + 524252
10 CarPlay 0x000000010628c57a CarPlay + 521594
11 CarPlay 0x000000010628ede3 CarPlay + 531939
12 UIKitCore 0x00007fff47162215 UIApplicationInstantiateSingleton + 93
13 UIKitCore 0x00007fff471627e4 UIApplicationMain + 978
14 libdyld.dylib 0x00007fff5123bcf5 start + 1