[milehighboltguy]

For real. The right hand number column never displays a "9". So when I'm going 9mph its blank. When going 19 it shows "1 " or 29 is like "2 ".


I attached pic so people will believe me. I need to have the recall reprogramming done soon so maybe it will reset it.


Anyone else with this issue? Otherwise my Bolt has been flawless. Bugs me I need to have it reprogrammed when it works very well.

 

[Dimitrij]

I would definitely take it to the dealer; there may be some kind of a bigger problem brewing in the background, so yes, do let the dealer know.

 

[timeToy]

This is wild!
My limited embedded experience lead me to believe this looks like a hardware issue, as if the memory location where the 9 is stored is unavailable or corrupted... But I really don't know...

 

[Rick CH]

This is out of pure curiosity and not any kind of diagnostic, but could you switch the units to metric and see if it does the same thing when the speedo is displaying km/h? If you're not sure how to switch, press the left arrow on steering wheel selector buttons, choose Options, and one of the items will be for units.

 

[DaV8or]

This one is a head scratcher for sure. I don't think anyone else has had this issue. Definitely take it in.

 

[dbostrom]

I keep thinking Photoshop is the only explanation for this problem but nobody would be so cruel as to inflict such a wind-up on a bunch of susceptible geeks like the denizens of this forum. From a general familiarity from other products with how the Bolt's displays -probably- are implemented it seems an impossibility-- the havoc should be broader and even more entertaining.

The dealer tech probably has access to the equivalent of "CTRL-ALT-DEL," which would presumably clear whatever strange corruption has caused the display to behave so.

 

[quirkySquirt]

That is so weird. If safe, @milehighboltguy, can you maybe record video of it when driving around a large parking lot or something? That is just so weird...it's like the bytes for the "9" char were corrupted or replaced with a null value. So bizarre...

 

[Sean Nelson]

That is just so weird...it's like the bytes for the "9" char were corrupted or replaced with a null value. So bizarre...

Sounds to me like he got shortchanged with a car that only uses base 9 arithmetic...

 

[Ampera e]

Sounds to me like he got shortchanged with a car that only uses base 9 arithmetic...

Nice angle. However, .... while driving 19 MPH (base 10), it should have displayed 21, not 1<space> :nerd:

 

[Raymondjram]

The dealer tech probably has access to the equivalent of "CTRL-ALT-DEL," which would presumably clear whatever strange corruption has caused the display to behave so.

Someone asked the IBM system engineer who invented the "Ctrl-Alt-Del" key stroke combination about its misuse whenever MS/DOS or Windows locks up (It was NEVER a Microsoft invention as it is coded in the original IBM PC BIOS!).

He said that is was a way to restart the BIOS and reload (reboot) the O/S when any problem hung up the Intel 8088 processor without having to power off then power on the PC (the big red toggle switch on the cabinet rear right side). The keyboard sends a "RESET" to pin 24 of the Intel CPU. And he chose three keys that were separated enough to need both hands to activate and prevent accidental restarts. But after learning all the new MS/DOS and later Windows issues that required that restart, he regretted creating it.

Anyway, he did it as a solution to the original need, but we all know that newer BIOS and Windows versions trap that key combination then asks what does the user need (a reboot, lock the session, switch the user, or start Task Manager).

 

[gern_blanston]

Have you tried disconnecting the 12-volt battery for a real re-boot?

 

[milehighboltguy]

Hey everyone. So I found a way to reproduce the problem. I noticed today it was not doing it. I changed the display to be the black color (even though it was daytime) and it again would not show a 9. When I changed it back to the white blue, it works. So it has something to do with the color choice. Maybe ALL of the bolts do this it just hasn't been noticed? Please check yours using the black color display.



I did make a video. Here is a video...


https://drive.google.com/open?id=1naQcxT38k03EvRoLClzmHUx2ZcuD8KXW

 

[Sean Nelson]

Please check yours using the black color display.

I've had my 2017 Bolt set to the black display for over 10 months now and it's worked just fine - first with the original software and subsequently through all of the updates.

 

[milehighboltguy]

I've had my 2017 Bolt set to the black display for over 10 months now and it's worked just fine - first with the original software and subsequently through all of the updates.

Well it must just be my car then. Weird. I've had the radio update but it didn't change it.

 

[wonderbolt]

I've had my 2017 Bolt set to the black display for over 10 months now and it's worked just fine - first with the original software and subsequently through all of the updates.

Same here (14 months)...

 

[AG5BPilot]

From a computer science perspective, this would seem to be a font problem -- the nine digit is corrupted. Either the digit itself is kaput, or the the pointer to the digit is kaput.

Two additional diagnostic clues are that it's only that one color that is affected, and only that one size. There's a smaller '9' visible in one of the photos where the large '9' is missing.

There would seem to be two likely possibilities: The software load is corrupted, or there's bad memory. I would tend to lean towards it being the initial software load was corrupted somehow, but it really doesn't matter. Whichever it is, the missing '9' could be the tip of the iceberg -- there could be other problems in there that you either haven't noticed, or have not manifested themselves yet. It's entirely possible the damage that's causing the '9' not to display could have changed some other bits at the same time.

This is potentially a major, life threatening problem. (Consider what would happen if under the right circumstances the brakes fail to operate.) I would not delay in taking this to the dealer. In simple terms, the computer controls the car, and the computer is malfunctioning. A problem on the speedometer may not seem that serious, but we do not know what the root cause is, and there may be other, less obvious, consequences.

 

[GJETSON]

Hey everyone. So I found a way to reproduce the problem. I noticed today it was not doing it. I changed the display to be the black color (even though it was daytime) and it again would not show a 9. When I changed it back to the white blue, it works. So it has something to do with the color choice. Maybe ALL of the bolts do this it just hasn't been noticed? Please check yours using the black color display.

That is really weird. We have used the display set to black exclusively, and have not had a problem.

 

[ai4px]

Could it be a font size problem? 9 is a wide number and if the combined width of the 10's place and the numeral 9 was greater than the width of the allocated box, the O/S might not display it?? I'll try to reproduce tomorrow on way to work (in the dark).

 

[quirkySquirt]

I second @AG5BPilot suspicion it's some corruption. You should definitely press your dealer into troubleshooting it. Keep a close eye for any other oddities.

 

[gern_blanston]

I say again: "Have you tried disconnecting the 12-volt battery for a real re-boot?"