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Phone App not getting data from 2025 Hummer EV

Bug Reports

I have ABRP installed on the head unit of the Hummer. The Hummer has all GM updates installed. The app installed on the Hummer is logged in with the same account as the app. Other than being very slow, the in car app seems to work ok and shows the battery percentage. As you can see in the photo, there is 70% left on the battery.

When I switch to the phone app on carplay for better performance, the battery percentage data is not being sent to the phone.

It is just using a number that the phone app allows you to set. When I click the information button, I get the following screen that shows live data.

Any advice would be appreciated.

Also, I tried buying a BLE OBD device. The phone app will not let me select this as an option for live data.

Where does this happen?
ABRP version number (found at bottom of settings menu)
Posted by ABRP User #3072912 ·
Status: Awaiting Clarification7 comments

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Comments7

  • Linda ABRP

    Team•

    Sep 3

    Hi

    There is not much data coming from Automotive. You can try to connect with CarScanner and see if we get the SoC from there. You find the connection button in the settings under Vehicle and then Connect live data.

    • ABRP User #3072912

      •

      Sep 3

      The app intentionally blocks the connection to the OBD device as it should be able to get the data from the android head unit in the hummer. The app will not show the OBD device as an option when you select the “connect live data” link shown above. However, if you go to the advanced OBD settings and click the “test parameter identificator” link, the OBD device shows in the options and you can click on it. I have the OBDLink CX.

      Also, I watched a youtube video from another Hummer owner that has the app installed in the Hummer head unit and (for him) it sends the data to the cloud and the correct battery percentage shows up on his phone in carplay. So, I’m not sure why this won’t work for me.

      • Linda ABRP

        Team•

        Sep 4

        OBD is not supported for your car.

        Was it the same car model in the video?

        • ABRP User #3072912

          •

          Sep 4

          Yes, I know. I said above the app blocks the OBD. The car in the video was the same car as mine. As I said, the app installed on the head unit sent the battery numbers to the app on his phone and he used carplay to do the nav. I can’t get the battery numbers to the phone. The app is way too slow on the head unit.

          I don’t understand why ABRP would not allow me to use the OBD, but that is a whole other conversation. If ABRP can’t get the data to my phone, it isn’t worth using.

          • Linda ABRP

            Team•

            Sep 4

            Only using CarPlay will not get any live data from the car.

            To add support for OBD we need the correct pids. You can read more about that here https://abrp.featurebase.app/p/odb-live-data-hummer-ev-suv-2025

            • ABRP User #3072912

              •

              Sep 4

              Just so I understand the answer, you are basically telling me there is no way to get live data into ABRP on my phone for my vehicle?

              • Linda ABRP

                Team•

                Sep 9

                You need to check your options under Connect live data in the settings.