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The head unit will remain black, can't connect to Bluetooth, use the radio, see anything...but when I put it in reverse the back up cam works everytime!! I know if it'll work or not after I close my driver door, of the "splash screen" doesn't show up it will remain black when I turn on my truck and as I said the back up cam will always work. It has progressively gotten worse, used to be very rare that it would stay black but now it's almost 100% of the time and literally 1/100 times it will work. ihave tried removing fuzes and plugging back in, removed the head unit and replaced with an OEM.. that did nothing. Tried unplugging battery and allowing to reset, gotten the latest software updates and still nothing! Hope someone can help it's driving me nuts! I love my truck but this ruins the experience especially on long rides.

Good morning This is more of a FYI after a bit of runaround with GM/Onstar support. I'm on the 2nd week with my new '21 Sierra Denali. The issue I'm having is when accessing the "Apps" module in the infotainment system. When I try to open it I'm presented with a connection error asking me to check my network settings, available data, or connect to another WiFi (attached screenshot). After checking everything, connecting to multiple WiFi, etc. I called GM/Onstar support and after being passed around I ended up talking to a support tech that knew exactly what the problems was. This issue isn't related to the vehicle's setup, but apparently related to something that Amazon did with their service(s) that is causing the apps module to fail to load as it checks for status upon loading. This issue started popping up around 2 weeks ago and, according to the tech, affecting '21 Sierras (and later '20s). There is no ETA on resolution to this, but was informed that engineers are aware of the issue has there is an active service ticket for it to be fixed. Hopefully this post will help out any other owners having the same problem as it's not something that is readily known to GM/Onstar support.

When I set "maximum start-up volume" to a good level, it will hold for a couple of starts. then it reverts to a very loud start-up volume. Radio blasts loudly until we turn it down. Reset maximum start-up volume repeatedly but will not hold. always reverts to loud start up volume. service department has not heard this problem, but a friend with a 2021 silverado has the same problem, exactly.

I purchased a 2021 Silverado Z71 in April, and I love it, but an odd quirk with the infotainment system. Each time I get in my truck, with the same cell phone I always carry, I cannot make a voice activated call for up to 5 minutes. The response is always "please wait, I am loading your contacts". Why does the system load my contacts each time I get it the vehicle? Is there any way to have it store the contacts and not upload every time? Is it supposed to do this?

Does anyone know if we have more choices of pictures for our Infotainment profile? I have what looks like coffee beans as my picture, I suppose these are default pictures provide by GM. Can we provide our own picture? If yes, how? Thanks

I have less than 300 miles on my 2020 GMC Sierra 2500HD. I have utilized the remote start feature on my fob 3 times so far. Each time, upon entering the vehicle, I place my foot on the brake and push the start button to bring it up to life. Everything works fine, with the exception of the infotainment screen. It remains black, with the exception of displaying the rear camera view when I back out my driveway. Once back in drive, it goes back to black. I have to park the vehicle, turn it off, and then re-start using the vehicles start button to bring the display back on. Anybody else having this issue?

Just picked up brand new 2019 LT Trail Boss yesterday, and the infotainment screen is completely unresponsive! Nothing happens at all when you touch the screen. Everything shows up and is visible, but you have to use the physical buttons below the screen to get anything to work. They told me to bring it in first thing Monday morning to try and fix. Has this happened to anyone else? I came from a 2019 Ram because I was tired of dealing with all the problems, haha. I seem to have the worst luck! Hopefully a software update fixes the issue.

Sorry in advance for length, but several problems and have not shared everything about them!!!! ?? Am I crazy? are there ghosts? is any of it real? and it all leads to trust! I know new vehicles have a lot of electronics and they are harder to track down when it only happens occasionally. To me it is the most frustrating to go to the dealer and say this happened, I heard this, the truck did this! and they come back with "Mechanic checked it out thoroughly and everything is OK!" You drive off asking yourself did I really see this? did I do something? did I hit a switch I shouldn't have? The dealer tells you "If it is intermittent, unless we see it here, we cant fix it" And now my Problem, search for help, and seeing if anyone else has seen this? 1. 2020 GMC Sierra Denali 2500HD 6.6 Duramax Diesel. (Which driving off the lot I was so happy about) at about 200 miles I was diving around and noticed that the display in the cluster changed! I thought it was something I did and kind of ignored it. At 300 miles took it to the dealer, and explained the problem, got that look that says he doesn't want to look at it dummy! Later picked it up and was told I was problem, I must be doing it as mechanic says it is all good. and got told if it ain't doing it when you bring it in we wont find it unless it gives code! Left dealer but made sure display was at a known reference point. Later I saw it was at a different display again, so I did something you don't do often, got the manual out and read up on this. I leave the display on the economy setting just to see how It is doing and as a reference. Well it did do it and over time got worse! But not often enough to get the sound of "If it ain't doing it when you come in we won't find anything" I tried bumpy roads, hitting steering wheel, left turn, right turn, bump and turn, even took two boxes and taped over the switches on steering wheel. (Keeps the ghost out) anyway still changes, random and even saw it do it when shutting off, just as i pushed off button! Didn't repeat so dint take in.7,000 miles and dealer still says it must be me as Mechanic says no problems. But now read on as more ghosts appear! 2. DEF fluid, it is going someplace, that I know as I am feeding it to my truck and it keeps drinking. First incident was in Oklahoma, stopped, fueled up and filled DEF tank. Headed down the road and after Liver and cheese sandwich, singing to my self (about 100 - 120 miles) this thing called a Information display announced "DEF getting low" so I looked to see next fuel stop, and let the DEF display on, which said 4 green boxes above the empty (There are 8 boxes on display) My mind thought why and my analytical side said may go to a detail mode that shows more boxes before empty??? (Which I don't think it does) anyway 28 to 35 miles I watched one light after another go out as i pulled into the station. It took 6 gal to fill bought 3 of the blue Platinum, 2 full ones = 5 gal and about another gallon of the third. Now being a new to diesels guy thought this must be a "REGEN" ? which I have only seen displayed once since owning at around 400 to five hundred miles. I reading the manual again, and asking around i have been told that with only 8,000 miles on the truck, that my 17 to 19 gal of DEF fluid is high. (in history I had a check engine light and service message come on and stayed on two days then just went away, dealer I I stopped at said no codes, about 3,000 miles) Now in all this time I got a check engine light and service message again 7,000 miles, so took to dealer and in keeping truck for two days they couldn't find the reason but codes showed fuel heater! (BTW dealer said ck engine light was off next morning but showed codes, service light still on) ordered parts and to take it. (Four days of driving and service engine display stayed on the 4th day the service orange light came on. What happened next is combined with number 3 below.... Dealer replaced parts and i am again driving... I was told they have no explanation for DEF, and there is no gauge in DEF tank. ( So how does it know when getting low?) and why would that affect usage? 3. OK, what is next is mixed in with what you read above. On the road again with service message still on waiting for parts i went out to start truck and hit the switch, engine turning over and over and over, not starting and knowing something was wrong, hit the button again and kept cranking, seemed like at least 10 to 15 seconds and stopped on it's own. waited a few minutes and thought should i try again? I did and cranked for at least 5 to 8 seconds and started! whew, I took off and all seemed OK. stopped was in on business about 2 hours and came out and trucked cranked for again at least 5 seconds and started. good to go? well few miles latter stopped at Starbucks, came back out and engine started as normal! Put in reverse and camera came on, put in drive and took off. Few thousand feet and camera in back still on. I wanted navigation so I hit the home button, nothing, at 1/4 mile or more it switched at some point to front camera so i looked and found a turn in stop point at about 1 mile camera still to front and turned off truck. restarted and waited until all the screens settled. Put in reverse backed out and drive camera switched to front, driving again and seemed ok as camera went off about 1/4 to 1/3 mile navigation on.. I am good? Nope pulled up and in traffic and screen switched to front camera. I am watching traffic as i want to get off highway and check this out,when i noticed orange light in right mirror say vehicle there , but there wasn't any there in mirror glanced at left and orange light on, no cars either side so moved off road and as i stopped i saw center display changing screens like a deck of cards. Ok truck is now giving me the willies! took to dealer they put in parts and said no codes no problems, could not explain DEF usage said maybe part replaced. could not duplicate cranking so said no problem, said camera s OK not a problem so basically looked at me like I was an idiot and truck is OK. 4. Now i am at the point of TRUST, do you trust a life in a truck that does weird things? doesn't leave a trail, and makes you feel like no one believes you these problems happen? A. Cranking has occurred now three times in life of truck, last time it happened after parts replaced! B. center display has acted up since beginning, changing on its own, and the weird time it just kept changing. C. display not going off, locked on camera and or screen getting frozen on a certain display. once on cameras, once on apps, twice on phone screen. Finally was close to dealer and they got to see stuck screen and no touching or button combination would change it. (Waiting to hear form service manager) D. High DEF usage? or is it normal? since beginning. F. Center information Display going off twice with second time going off and back on after 15 to 30 miles, then off, but still random screen changes. G. last but not least is Trans temp. Something i don't normally look at if not towing. First time i saw was flat road and was changing screens it was at 260 i was at 75 and temp outside was at 85, i watched it drop to 170 after 30 miles and stayed that way for about 50 miles and stopped watching. Next time was at outside temp of about 70 75 degree, trans went fro 195 to 280 for about 10 miles and started dropping back to 165 then up to 195 then back to 165... don't watch it all the time but was told it was good and not outside of specs... My question why such a big fluctuation? and why change at all when not towing? So HELP,!!!! anyone else seeing odd things like this? How do you trust a vehicle that does this? Am I over reacting? is it a ghost? And my final question is what if something in the communications system, computer, was to go haywire? could it cause a situation that could cause an accident, loss of life and no one would ever know as the mechanic always says "Looks good, NO problems, NO codes" Sorry for length, but tried to keep it brief and still tell most of the story! every few weeks it seems like something new shows up!

My Infotainment display 1) Randomly decides to switch from the Radio station that is currently playing to a list of radio stations and back and forth. 2) Sometimes when this happens the Info Display (MPH) on my Dash switches to radio all by itself. I can put the display back on (MPH) but it does not stay UNTIL whatever is going on decides to stop messing around. This issue is not everyday but enough times that it's quite bothersome! Showed to Dealer Service Dept. (Southern Auto Group, Chesapeake Va.) and they could not find an error code and the only advise was that if it keeps happening they can try and fix by Replacing Infotainment system.

My infotainment Screen is only working and half the screen and that's not even correct. Any ideas what to do here? I've restarted everything a few times.

I’ve not seen anyone talking about this as a possibility so I’m hoping I can find someone who would know. So I just recently purchased a 2020 Chevy Custom Trail Boss which I think was one of the better packages for the price, minus a few perks. Anyways, I’m curious to know if anyone has attempted to swap the 7” infotainment center out for the 8” infotainment center plus installing the Audio controls on the steer wheel. Can this be done and if so how difficult is this going to be?

We have had our new AT4 for 3 days now. The truck is brilliant! The tailgate was really well designed, the HUD is much more intuitive and useful than anticipated, BUT....... When using the Nav function, on the map screen, I can't see the information displayed. The map display is very washed out, seeming like the brightness is turned all the way up, but the contrast is turned all the way down. There is no black on the display at all. Just greyscale letters and numbers. Very light pastel coloring for the map items. I had tried to switch to Google Maps and Waze with Android auto, hoping those maps would work better. But no, they just use the native display colors when displayed on the infotainment center. This display just doesn't work well for me. Is it possible there is something wrong with my head unit, or do I need to learn to live with this? Is everyone else's map screen crisp and bright, or washed out and hard to read like mine?

Just today when i switched the radio station by pressing a preset option my “buttons” and info all went away after about 10 secs. When you touch the screen they come back and stay for 10 secs. If I start it and don’t touch any new stations they all stay. Never has done this before. 2018 Yukon XL Denali bought end of May