I had this error about 3 weeks ago, entire system shut down and reset and that appeared on my instrument panel. Yukon has been fine since, until it went in for service yesterday, about an hour after picking it up the entire system started going haywire and got stuck on Focus your attention on Driving, will not move. Nothing works but the radio using buttons on steering wheel. I called dealer and they said it needs an update? I receive notifications for auto updates and have gotten none recently, but ok? I am waiting on whatever it needs now to hopefully fix this. Has anyone had this issue?
Service Instrument Cluster Error 2023 Yukon AT4
- Thread starter Mal2500
- Start date
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WalleyeMikeIII
Full Access Member
Service Instrument Cluster @634 Miles, 2022 Yukon XL Denali
Note this document released in June: https://static.nhtsa.gov/odi/tsbs/2022/MC-10214707-0001.pdf Vehicle at dealer today for this software update. Dealer just called, technician unable to get instrument cluster to accept new software. Consulted w/ GM Engineering, recommendation was replace the...
www.tahoeyukonforum.com
Yours should have had the latest firmware from the factory, so not sure its the same, but I did have this early in my ownership...after it was replaced (after failing to update), has been trouble free.
StephenPT
Full Access Member
I don't believe the cluster can be updated via OTA. Did you take it back to the dealer and get it updated?
As WalleyeMike stated, this was an issue on some '22s and there was a TSB issued for it. Could be they fixed the '22s and the '23s have a newer software level that has a new bug in it causing this issue. With the complexity of the software on these vehicles as they make iterative updates, they seem to make a new bug for every few they get rid of. Case in point the OTA updates being pushed out to update the infotainment along with other things has now caused an issue with the auto fan speed on the HVAC system. That bug was not present until about two OTA update cycles ago.
As WalleyeMike stated, this was an issue on some '22s and there was a TSB issued for it. Could be they fixed the '22s and the '23s have a newer software level that has a new bug in it causing this issue. With the complexity of the software on these vehicles as they make iterative updates, they seem to make a new bug for every few they get rid of. Case in point the OTA updates being pushed out to update the infotainment along with other things has now caused an issue with the auto fan speed on the HVAC system. That bug was not present until about two OTA update cycles ago.
WalleyeMikeIII
Full Access Member
@StephenPT, I think this VIP architecture has ability to update multiple modules OTA, just depends on what they put in the update package.
StephenPT
Full Access Member
Yes - it definitely does. I just don't believe the instrument cluster is one of them. I'm basing this on any TSB I've seen mentioning software updates for radio/infotainment, headlights, etc. will mention OTA update in the TSB. There is no mention of OTA update in the cluster TSB attached. I could be wrong, but I believe everyone that has had this cluster issue has had to resolve it directly at the dealership.
WalleyeMikeIII
Full Access Member
I take section C, mentioning the IPC, as being code fixes that address the IPC; now, not sure whether that is an infotainment software update that addresses the issues by fixing the head unit side vs the IPC, but can’t really tell.
WalleyeMikeIII
Full Access Member
The words in that doc about vehicles in unconnected markets implies that vehicles in connected markets can probably get cluster update OTA.
StephenPT
Full Access Member
I read that as - the cluster update also needs the radio (infotainment) on the latest update. If it's a fleet vehicle and disconnected from OTA updates, they're advising the dealer tech to make sure to update the radio while also applying the cluster update.
Either way, I don't think we'll ever know for certain. I just hope that GM gets a more robust OTA update process and fixes things without breaking other things in future updates. There's always a bit of nerves each time I hit the button to accept the OTA update...
Either way, I don't think we'll ever know for certain. I just hope that GM gets a more robust OTA update process and fixes things without breaking other things in future updates. There's always a bit of nerves each time I hit the button to accept the OTA update...
