This is not good news, when I picked mine up on Monday the service department informed me that GM techs instructed that the issue was due to battery drain during the software load recharging the battery would correct the problem. I was and still am skeptical of that since driving the vehicle would essentially charge the battery. I guess we are all still in holding pattern waiting on GM. Very frustrating, especially with something so critical as your brakes, kind of need them!
Nothing that I could see either looking at the website, my OnStar module is on a pervious version from what you stated above. I also checked the MyChevy app and still getting the same error message, “No server response received. Your request may have completed successfully. (705_3)”. Lets hope in the 807 release for the Infotainment system fixes the volume issue with iPhone and the issue where no sound comes out unless you change the radio source or channel after starting the truck.
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Just picked up my trunk from dealer this afternoon. Service department stated that GM techs have posted, on a internal site, that after the brake controller software is loaded the battery needs to be re-charged, nothing about reloading software or anything else needing to be done. I find this kind of strange since driving the vehicle should charge the battery and it started fine after the initial update. I was a little hesitant to take the truck however everything seems to be fine so far, there will be a lawsuit if not! I just logged into the MyChevy app and getting a error message, which is odd because I unlocked the truck with the app earlier when I picked it up from the dealer so something is going on with the MyChevy app now. They might be zeroing in on something, lets hope they figure it out quickly, otherwise I will be looking for a credit from OnStar.
This exact issue happened to me last night. My wife and I went out to dinner, and I started the truck using the MyChevy app to warm up. When I got into the truck I noticed a bunch of dash lights lite up, just like in some of the pictures on this post (I also attached the picture I took). When I pressed the start button all of the lights remained on. I shut the truck off and immediately started it agin but all of the lights were still on. Not knowing what was going on I decided to drive it home, about 16 miles from where we were. When I went to pull out of the parking lot I noticed that my breaks were like a 1960’s truck with no power brakes, and I almost went through an intersection. I took it to the dealer this morning and lets see what they say. I just had all the recalls done one week ago on Dec 27th. After reading all of these posts I am not too confident that anything will get done right away. I was a long time F150 owner and decided to go to the dark side when the Trailboss came out. I love the truck but I can honestly say this was the scariest thing I have ever experienced in a vehicle. I am just waiting to hear what they say and then I will get ready to file my complaint with GM, probably for that to fall on deaf ears. May have to go back to a Ford if they don’t get this straightened out quickly!
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