iPhone XR Sig strength bars on car's bluetooth display not updating when phone is asleep

Discussion in 'iPhone' started by jay968, May 22, 2019.

  1. jay968, May 22, 2019
    Last edited: May 22, 2019

    jay968 macrumors member

    Apr 2, 2019
    I've noticed that when my Xr which I use on Verizon is in sleep mode, the signal strength bars that show up on my car's display (through bluetooth connection to the phone) do not seem to update. Usually I will see one or 2 bars when I first start the car and drive off, but if I click on the power button on the phone, the car's display immediately goes up, very often to 5 bars. While I am not positive about this, I also think that it will stay at whatever number or bars the phone may have on it when it goes to sleep and I must therefor periodically tap the phone's power button to refresh this display in the car.
    Has anyone else seen this? Is it normal? I also noticed a Galaxy S10e that I used to own right before the iphone doing this as well using Tmobile. I don't think this started happening until very recently though. I never noticed it at all before about 2 weeks ago.
  2. jtmo3 macrumors newbie

    Jun 27, 2005
    --- Post Merged, May 23, 2019 ---
    Seems iphones have been like that for as long as I remember. It's a battery saving thing. My samsung 8 used to update the BT signal display every so often. Not real often. The only phone I had that worked real time for signal strength on BT was blackberry 10 phones.
  3. jay968 thread starter macrumors member

    Apr 2, 2019
    Wow, I had a 5c as recently as last September and never had this issue. At least not that I ever noticed. Then I went to Samsung last October and didn't see it there either until about 2 or 3 weeks ago when I did the latest upgrade on it. I guess either I hadn't noticed it there either or that upgrade changed it. Now that I've switched back to iphone I am seeing it all the time.
    I suppose it's not important as long as the phone is still receiving properly and won't miss a call nor a message. I've checked on this and everything seems to be ok.
  4. AppleHaterLover macrumors 68000

    Jun 15, 2018
    Yeah they are like that.

    CarPlay sucks when the iPhone is locked too.
  5. I7guy macrumors Core


    Nov 30, 2013
    Gotta be in it to win it
    I've never noticed this behavior, but maybe I never look close enough. However, with cellular data on, even when the phone turns the display off, I am not sure it really goes to sleep. It may however, go into low power bluetooth mode, which may stop the car display from updating, until a call comes in or bluetooth audio is used. I wonder if it does the same thing if connected to a car charger.

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4 May 22, 2019