So this is information about Uber app that I found in some blog:

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Android Uber app code has many suspicious places. For example, it contains a namespace "com.baidu.frontia" and classes there include such code as:

    localObject = ((TelephonyManager)localObject).getSubscriberId(); // gets IMSI 
    ((TelephonyManager)localObject2).getDeviceId(); // gets IMEI
    localObject1 = ((WifiInfo)localObject1).getMacAddress();
    public static void makeCall(String paramString)
    public static void sendSMS

Also there is the code that collects information about cell towers, mcc and mnc codes, scans wifi networks.

I looked quickly through the code and it seems that those methods are never called. They are probably just a part of a library not used in this app. Uber mostly uses baidu maps, authorization and payment API.