Jump to content

2021 Sierra (AT4) no infotainment updates?

Cr Lloyd
 Share

Recommended Posts

Cr Lloyd New Member

Cr Lloyd

Posted
Posted

I read recently (3/31/21) there was an update (v155) to the infotainment on the 2021 Sierra that for now, only dealers can manually update. I have hear of at least one more update prior. When my truck was at the dealership for something else, they said there were no updates to apply.

 

If I click "about" in the settings menu, it says the software build is March 2020. When showing the "update history" below that, it shows nothing. Every time I try to do an OTA update, it doesn't find anything. Does my dealership just not know?

 

Lastly - I am a tech guy. I can't find anything on previous updates, release notes, etc. ?

SRNicholson Enthusiast

SRNicholson

Posted
Posted

I am also a former "tech guy" so was anxious to get the update as soon as I saw an email about it.  PM me if you want a copy of it.

 

Had first oil change on my 2021 Denali last week.  I got them to update mine to v155.  They didn't want to update it and only after I let them know that I have misc Android Auto issues would they do it.  As a general practice apparently my dealer won't do it if nothing is broken.  They likely don't want to bother in your case I'm sorry to say.

 

For the record, I still have flaky Android Auto issues.  It doesn't seem to have corrected the random ignoring of requests and responses that I encounter on a regular basis.

steve841 Enthusiast

steve841

Posted
Posted (edited)

GM is the absolute worst at pushing updates OTA.

 

At least they had to pay for a tow because of a dead battery in my case ... all because of my truck not getting the OTA.

Edited by steve841
lebag335 Enthusiast

lebag335

Posted
Posted

Saturday I got an Onstar update 4.46.  It updated fine and I swear my truck drives better!  Placebo effect?

redwngr Senior Enthusiast

redwngr

Posted
Posted
9 hours ago, lebag335 said:

Saturday I got an Onstar update 4.46.  It updated fine and I swear my truck drives better!  Placebo effect?

Yes.  Placebo effect.

 

The OTA updates are infotainment system only.

  • Haha 1
DaleM Enthusiast

DaleM

Posted
Posted

I've had my truck just over a week and noticed anytime I hit "apps" on the display it brought up a connection error and said to check my internet connection. I work in IT, specifically networking and I tried all the typical stuff; connect truck to home wifi, have truck forget home network, turn off wifi on phone, power phone off completely, - all resulted in the same error. After I did everything I could I contacted On*Star who put me through to the connection troubleshooting folks.

There was a module change between 2020/2021 involving wifi resulting in the infotainment system not communicating with the Wifi module of the truck. I have thought they were all bound by hardware but, from what they told me, wifi is separate from Infotainment system and they only communicate wirelessly.

The fix is a firmware update which can only be applied by the dealer service dept. Likely because the system cannot communicate via wifi and thus cannot download update.

So, if pressing apps on your display results in a message stating to check your internet connection then the dealer must update firmware.

I have yet to have this done, hopefully will be completed within the next 10 days. If so I will update here.

Hope this helps.

  • 2 weeks later...
Fred S New Member

Fred S

Posted
Posted
On 4/20/2021 at 4:45 PM, Cr Lloyd said:

I read recently (3/31/21) there was an update (v155) to the infotainment on the 2021 Sierra that for now, only dealers can manually update. I have hear of at least one more update prior. When my truck was at the dealership for something else, they said there were no updates to apply.

 

If I click "about" in the settings menu, it says the software build is March 2020. When showing the "update history" below that, it shows nothing. Every time I try to do an OTA update, it doesn't find anything. Does my dealership just not know?

 

Lastly - I am a tech guy. I can't find anything on previous updates, release notes, etc. ?

Going in this Wednesday for the v155 update as per the OnStar tech support adviser. My truck will not communicate with the wifi. I can connect to my home wifi or iphone hotspot for about two seconds before the truck disconnects. I can't get the traffic updates on the navigation system either. I tried clearing all my personal info from the truck also and now I cannot sign in except as guest only. They can't do the over the air update because the truck cannot communicate with OnStar except for phone calls only. OnStar told me this is a known problem for 2021 GM vehicles. I'll update if I have success. 

  • 2 months later...
SEBFL Enthusiast

SEBFL

Posted
Posted

When the V155 update is completed does it appear in the download history 

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
 Share
Go to topic listing

  • Latest Articles

  • Posts

    • KARNUT
      2027 GMC Sierra: Official Discussion

      By KARNUT · Posted

      It wouldn’t have happened if the government hadn’t mandated outrageous fuel mileage standards. It does very little for the consumer. It adds cost. Back during Covid there was a chip shortage. They gave a rebate for your truck if it didn’t have the chip to turn on cylinder deactivation. It was 50$ because at best you may see 1/2 a mile increase per gallon. Splitting hairs each fuel mileage trick wasn’t mandated. The government doesn’t do the engineering work and say use this until it’s already in use and they like it. The fuel mileage was mandated. And those add ons the results. There’s a mandate and they are the results.
    • newdude
      2027 GMC Sierra: Official Discussion

      By newdude · Posted

      It was never mandated.  Ever.    Automakers were incentivized to install it by getting CAFE credits to help with their vehicle fleet fuel economy scores.  They were being handed money/CAFE credits to install it.  Which is NOT a mandate.       The current admin removed the incentives that were behind them installing it.       
    • lanaderay
      5 Best Slide Down Gameplay Tips! 

      By lanaderay · Posted

      Are you playing Slide Down endlessly but your score is still low? Are you constantly crashing into obstacles as the game speed increases? Don't worry, this article will share 5 invaluable tips to help you master the race and impress your friends. Golden Rules 1. Look one step further. The mistake of 90% of new players is only staring at their character. The secret of experts is to look towards the top of the screen (where the slide is about to appear). This gives your brain an extra 0.5 - 1 second to process the situation and determine the direction of movement before the obstacle approaches. 2. Use gentle movements; don't swipe too hard. Slide Down is very sensitive. Moving your finger too forcefully or with excessive amplitude will cause your character to be thrown off course or crash into a wall. Practise moving your finger with small, decisive, and precise movements. 3. Don't be greedy for gold in dangerous locations. Gold coins are tempting for buying skins, but life is more important. If you see a gold coin right on the edge of a cliff or next to a spike trap, ignore it. Our goal is a High Score, and your score only increases if you survive. 4. Make the most of Power-ups. During the slide, you'll encounter items like Magnets (attract gold) or Shields (temporary invincibility). Never miss them! Especially the Shield, it's your "get out of jail free card" to help you get through those deadly fast sections. 5. Stay calm when speed peaks. When your score exceeds 500 or 1000, the game speed will be very fast. At this point, don't try to think logically; let your natural reflexes work. Take deep breaths and don't panic. Apply these 5 tips to your next game, and your leaderboard will surely improve dramatically. Good luck climbing the Slide Down leaderboard!
    • lingyuair
      Why I Recommend a Desiccant Air Dryer for Cleaner, Drier Compressed Air

      By lingyuair · Posted

      If you use compressed air regularly, one problem you cannot ignore is moisture. Water in the air line can cause rust, unstable air pressure, poor tool performance, and even damage to sensitive equipment. That is why I highly recommend using a desiccant air dryer. A desiccant air dryer is designed to remove moisture from compressed air by using drying materials such as activated alumina or molecular sieve. Compared with basic water separators, it can achieve much lower dew points, making it especially useful for applications that require dry and stable air. For workshops, painting systems, pneumatic tools, CNC machines, laser cutting equipment, and industrial production lines, a desiccant air dryer can make a big difference. It helps protect equipment, improve air quality, reduce maintenance costs, and extend the service life of the whole compressed air system. Another advantage is reliability. Many desiccant air dryers are built for continuous operation and can maintain stable drying performance even in demanding environments. For users who care about long-term efficiency and equipment protection, this is a smart investment. When choosing a desiccant air dryer, I suggest paying attention to air flow capacity, working pressure, dew point performance, regeneration method, and maintenance requirements. A good model should match your compressor system and actual air consumption. Overall, if moisture is causing problems in your compressed air system, a desiccant air dryer is definitely worth considering. It is practical, efficient, and highly useful for anyone who needs clean, dry, and reliable compressed air.
    • Jsdirt
      2027 GMC Sierra: Official Discussion

      By Jsdirt · Posted

      My brand new 2007 Silverado's wax frame was rust from end to end partway through it's SECOND winter here in MA. That stuff is completely useless.    

  • GM-Trucks.com Clubs

  • Popular Contributors

×
×
  • Create New...