2023 digital dash board not working. Serious safety issue!!!
Thread Starter
Advanced
Joined: Jul 2016
Posts: 50
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2023 digital dash board not working. Serious safety issue!!!
Yesterday afternoon I was in Nashville for a golf tournament and I had to drive on Interstate 40 for roughly 15 minutes and then another 15 minutes on city streets to get from my hotel to the tournament. When I get in my car at the hotel and start it the digital dash board is completely BLANK! I turn car off and restart and same thing. I restarted it 6 or 7 times and still nothing. The infotainment screen is working fine but no dash. I ended up driving to the course on I-40 with no clue of how fast I was going as the heads up display was not working either. Once off the interstate I turned the car off and on at a couple of red lights and still no dash. After the tournament I start the car and everything is normal. I couldn't imagine having to drive 3 hours home on the interstate with no dash board. Anyone else ever have4 this problem? I would imagine this could be one MAJOR safety issue that GM doesn't want or need.
Team Owner
Joined: Oct 2004
Posts: 25,583
Likes: 16,942
These types of things are the price we pay for modern technology in cars driven by software. The body control module (BCM) is the gateway for the electronics, and is 100% software driven. Like a smart phone or computer, software doesn't always load and respond properly, and a reboot is required. Shutting down and restarting immediately may not allow enough time for a reboot to occur. The BCM needs to power down completely, then be rebooted, which is likely what you experienced after shutting down for a longer period.
I suggest taking your car to a reputable dealer service department, and my guess is they will reload the BCM software or possibly replace the BCM if your car is showing a related code when scanned.
I suggest taking your car to a reputable dealer service department, and my guess is they will reload the BCM software or possibly replace the BCM if your car is showing a related code when scanned.
Last edited by Foosh; Jul 27, 2022 at 10:18 AM.
Safety Car
Joined: Nov 2007
Posts: 3,882
Likes: 2,935
From: N.E. Suburb MN
No heads up display?No cell phone to put your GPS speed? No radar detector with speed? Did you play with your light switch was it in Stealth mode? Ultimately you are the PIC if you take a car on the road that you don't feel is road worthy that's on you.
Safety Car
Joined: Jul 2013
Posts: 4,408
Likes: 3,485
From: Granada Hills CA
These types of things are the price we pay for modern technology in cars driven by software. The body control module (BCM) is the gateway for the electronics, and is 100% software driven. Like a smart phone or computer, software doesn't always load and respond properly, and a reboot is required. Shutting down and restarting immediately may not allow enough time for a reboot to occur. The BCM needs to power down completely, then be rebooted, which is likely what you experienced after shutting down for a longer period.
I suggest taking your car to a reputable dealer service department, and my guess is they will reload the BCM software or possibly replace the BCM if your car is showing a related code when scanned.
I suggest taking your car to a reputable dealer service department, and my guess is they will reload the BCM software or possibly replace the BCM if your car is showing a related code when scanned.
Team Owner
Joined: Oct 2004
Posts: 25,583
Likes: 16,942
Agreed, if there is no code, and everything is functioning normally, there is probably nothing a dealer can do. However, it's always good to have these things documented for future reference. Checking for a stored code and documenting the incident was the reason for my suggestion.
I don't think disconnecting the battery at this point will accomplish anything.
I don't think disconnecting the battery at this point will accomplish anything.
Instructor
Joined: Jun 2022
Posts: 238
Likes: 136
Wasn't there some post about how to fix this by keeping the door open for 10 minutes or so and it puts the computer to sleep, then shutting the door and restarting the car. not sure exactly what it was, but there were a few post about an issue like this.
Le Mans Master
Joined: Dec 1999
Posts: 6,516
Likes: 4,840
From: One Hour From Boston!
It’s happened to mine a couple times in the year and a half I’ve owned my C8. Letting the car totally shut down (takes about 10 - 15 minutes) fixes it. In the meantime, I just used the speed indicator displayed on Waze on the Infotainment screen.
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Melting Slicks
Joined: Feb 2006
Posts: 2,261
Likes: 1,431
From: Brentwood CA
If this happens again, try this to erase the car/computer cache. Start the car. Shut the car off. Then open the drivers side door for 90 seconds (and you have to have it open for no less than 90 seconds). Close door, start the car and the computer cache has now been reset. Watch the video using the link below at the 1:44:46 mark.
Race Director
Joined: Jan 2014
Posts: 10,709
Likes: 7,102
From: Fulshear, TX
Turning the car off then on again at a stoplight does nothing; you must open the door as stated above. Turning the engine off then on again is really no different than turning your phone screen off then back on again and trying to compare that to a full reboot. I can't think of a single car I've owned model year 2010 or newer that hasn't done something like this at least once.
Team Owner
Joined: Oct 2004
Posts: 25,583
Likes: 16,942
I had an electronic glitch on my 2014 C7 periodically, which was also BCM-driven. I'd be returning home, hit the Homelink garage door opener and nothing happened. The overhead console map lights did not work. This happened maybe once every other month. Occasionally, the sound would be muted and distorted in the audio system.
The fix on every occasion was to park the car, and come back in 15-30 minutes, power things up, it was rebooted, and everything worked normally. I never bothered taking it to a dealer because it was infrequent enough to live with.
Software is maddening in many parts of our daily lives. However, I've never seen anything like this on any of our vehicles from any other manufacturer.
The fix on every occasion was to park the car, and come back in 15-30 minutes, power things up, it was rebooted, and everything worked normally. I never bothered taking it to a dealer because it was infrequent enough to live with.
Software is maddening in many parts of our daily lives. However, I've never seen anything like this on any of our vehicles from any other manufacturer.
Race Director
Joined: Sep 2016
Posts: 13,180
Likes: 10,528
Was it by any chance nighttime when the dash display was off, and daylight when it came back on? If so, check the brightness **** low on the dash to the left of the steering wheel (right above the parking brake button).
Burning Brakes
Joined: Apr 2022
Posts: 782
Likes: 656
From: Northern VA
2022 C8 of the Year Finalist - Unmodified
Rick Conti says 15m. Chevy Dude say 90s, but the procedures otherwise were identical. 95% likely the computer glitched and needed a reboot. That simple.
Moderator
Joined: Feb 2006
Posts: 39,161
Likes: 18,003
From: DFW Area TX
These types of things are the price we pay for modern technology in cars driven by software. The body control module (BCM) is the gateway for the electronics, and is 100% software driven. Like a smart phone or computer, software doesn't always load and respond properly, and a reboot is required. Shutting down and restarting immediately may not allow enough time for a reboot to occur. The BCM needs to power down completely, then be rebooted, which is likely what you experienced after shutting down for a longer period.
I suggest taking your car to a reputable dealer service department, and my guess is they will reload the BCM software or possibly replace the BCM if your car is showing a related code when scanned.
I suggest taking your car to a reputable dealer service department, and my guess is they will reload the BCM software or possibly replace the BCM if your car is showing a related code when scanned.
Drifting
Joined: Jun 2005
Posts: 1,562
Likes: 1,361
No digital dash, that sucks.
Safety issue? Only if you're an idiot. Everyone on this forum can easily drive within reasonable speed limits without having any mph or tach info displayed to them. If you can't visually guage your approximate speed maybe you shouldn't be behind the wheel.
I'm picturing you, panicked, going full throttle down the street at 100mph because you can't see your speedo 😂🤣
Safety issue? Only if you're an idiot. Everyone on this forum can easily drive within reasonable speed limits without having any mph or tach info displayed to them. If you can't visually guage your approximate speed maybe you shouldn't be behind the wheel.
I'm picturing you, panicked, going full throttle down the street at 100mph because you can't see your speedo 😂🤣
Thread Starter
Advanced
Joined: Jul 2016
Posts: 50
Likes: 30
No digital dash, that sucks.
Safety issue? Only if you're an idiot. Everyone on this forum can easily drive within reasonable speed limits without having any mph or tach info displayed to them. If you can't visually guage your approximate speed maybe you shouldn't be behind the wheel.
I'm picturing you, panicked, going full throttle down the street at 100mph because you can't see your speedo 😂🤣
Safety issue? Only if you're an idiot. Everyone on this forum can easily drive within reasonable speed limits without having any mph or tach info displayed to them. If you can't visually guage your approximate speed maybe you shouldn't be behind the wheel.
I'm picturing you, panicked, going full throttle down the street at 100mph because you can't see your speedo 😂🤣
Its more than just speed dude. You supposedly drive a C8 so you should know all the information that is passed onto the driver via the digital dash. I did gauge my speed by those around me and no I dont think we were going 100 MPH. I have never used Android auto and have no idea how to but I will be learning now as that was my first time driving any vehicle that didn't have a functioning dash. I will be fine behind the wheel, U do u!
Instructor
Joined: Dec 2021
Posts: 119
Likes: 78
If this happens again, try this to erase the car/computer cache. Start the car. Shut the car off. Then open the drivers side door for 90 seconds (and you have to have it open for no less than 90 seconds). Close door, start the car and the computer cache has now been reset. Watch the video using the link below at the 1:44:46 mark.
https://www.youtube.com/watch?v=QgR1WMDYd1M
https://www.youtube.com/watch?v=QgR1WMDYd1M
Cruising
Joined: Jul 2022
Posts: 10
Likes: 11
From: Texas
Yesterday afternoon I was in Nashville for a golf tournament and I had to drive on Interstate 40 for roughly 15 minutes and then another 15 minutes on city streets to get from my hotel to the tournament. When I get in my car at the hotel and start it the digital dash board is completely BLANK! I turn car off and restart and same thing. I restarted it 6 or 7 times and still nothing. The infotainment screen is working fine but no dash.
Today, I enabled auto software updates to get the latest software, but it reported "no updates available. Got back in the car a few hours later and once again, no dashboard
Called OnStar again and they did another remote reboot and the problem cleared. They told me to take to a Chevy dealer for fully diagnosis. I hope they can fix it because this is getting really annoying for brand new car. I have no plans to keep the OnStar service and shouldn't have to call them every time the dash fails.
Melting Slicks
Joined: Feb 2006
Posts: 2,261
Likes: 1,431
From: Brentwood CA
I've had my new 2023 C8 for a week and just experienced the exact same problem. After several engine stop/start attempts, I called the OnStar service (I'm still on the 30 day free trial) and tech support did a remote reboot of the dashboard system and got it working again. His explanation was that an automated software update may have not fully completed. I told him I hadn't enabled auto updates yet, but he said it may have happened anyway.
Today, I enabled auto software updates to get the latest software, but it reported "no updates available. Got back in the car a few hours later and once again, no dashboard Called OnStar again and they did another remote reboot and the problem cleared. They told me to take to a Chevy dealer for fully diagnosis. I hope they can fix it because this is getting really annoying for brand new car. I have no plans to keep the OnStar service and shouldn't have to call them every time the dash fails.
Today, I enabled auto software updates to get the latest software, but it reported "no updates available. Got back in the car a few hours later and once again, no dashboard
Called OnStar again and they did another remote reboot and the problem cleared. They told me to take to a Chevy dealer for fully diagnosis. I hope they can fix it because this is getting really annoying for brand new car. I have no plans to keep the OnStar service and shouldn't have to call them every time the dash fails.
Cruising
Joined: Jul 2022
Posts: 10
Likes: 11
From: Texas
Regarding my call to the dealer-- They said they didn't know anything about this problem and that they'd need the car for 5 days to check out, remove the dash, etc.
No thanks. I ended up cancelling the appointment until they figuring out what's going on (especially since I'm not the only one having the problem). Until then, I'm thinking that the "hold the door open for 90 seconds" trick sounds like a good workaround.