July 21, 2023 at 2:24 pm #770965
I wanted to post this here so that it is fresh information…
There is a similar thread on this topic, but this is too important to bury at the end of that thread.
My 2023 Canyon AT4 (980 milies) had the same issue happen with dead battery and software updates. It is currently at the dealership.
Here is what I was told:
The software update that is causing all the trouble discussed here… WAS CORRUPT!
They are not sure if it was bad programming in Detroit or if it was an outside hack.
The corrupt file causes the high speed bus (the main power draw on the battery that runs all the big components in the truck) to “stick open,” thus, killing the battery!
They got my battery charged, started the truck, but my screens were dead, which has been reported in GM Authority.
They ended up disconnecting the battery, reconnected it, started up, and screens were back (also reported in GM Authority)
Apparently this dead dscreen thing had an update about 4 weeks ago. The tech tried downloading that update and it ended up LOCKING my screen and they can’t get into it.
I now have a new radio on order which should be delivered by Monday.
Once they get a working screen, they will try to get the rest of the current CORRUPT update figured out and get my truck running.
Bottom line… GM has NO IDEA what is going on with this situation. It is happening in real time. While I was at the dealer, another Canyon came in with the same problem. Also while I was there, a dealership-wide email was sent out about this issue. The technician had to put in a call to engineering, IN DETROIT!!! for input. The service manager told me before I left with my loaner that I came in this morning with more information than they had about this issue.
I got that information from this board and I hope you guys can use some of my experience to assit you too!
Good luck to all you out there that are currently having issues. Apparently this is nationwide!
July 22, 2023 at 6:01 am #771038
I had similar issue with my 2023 Canyon Denali with 247 miles on it. Drove it all day and parked it. Next day nothing. Called the roadside service who got it started, but screens were blank and power brakes weren’t working. They towed it to dealership. They worked on it all day and finally called around 5 pm and said it was working fine. Told me that it was possibly the courtesy lights didn’t go off or maybe I hit the start/stop button twice and put it in accessory mode. When I picked it up I was speaking with the GM there and he said “what”!! He said it didn’t sound right so he told them to just put a new battery in. Working fine now. We were wondering if it was caused by my truck that reportedly built by 1-26-23 was sitting for 6 months before it was shipped. I guess we’ll never know!! Love my Denali!
July 22, 2023 at 7:33 am #771039
Well I guess I jinxed myself! I went out to get in my truck and it’s dead again. Waiting for roadside assistance to tow it to dealership again!!
July 24, 2023 at 2:45 pm #771235
I know this forum is about Canyon’s but I had the same issue with a brand new 2022 Silverado this past April 2023. And it was me that brought the download issue to the dealership. I started thinking about iPhone downloads and the requirement for them (the phones) to be plugged in so as not to drain the battery, and suggested that to the service manager. Since they couldn’t find any other issues, he agreed with me. For being GM trained “professionals”, the dealerships are kept in the dark as per the electronics on these vehicles.
Maybe the CEO should should forfeit some of her $40 plus million from her 2020 salary to help the company fix some of its problems.
July 24, 2023 at 3:02 pm #771254
I just wanted to share this update from the service department of my GMC dealership
My Canyon went in on Friday for the issue being discussed here.
The current understanding from GM is that some computer in Detroit that sends the software updates WAS constantly “pinging” vehicles and causing the onboard computers in our trucks to “wake up.” Everytime is woke up, the battery drained to dead. Apparently, there was NEVER and software update to be downloaded. This explains the answer to at least two issues presented here:
1) Turning off the auto updates didn’t do anything because there was no update. The GM computer was just pinging away.
2) Those of you that have done the “remove negative battery terminal” or have gotten a new charge on your battery only to have it die right away again anyway… it is because the computer at GM keeps pinging you vehicle.
I am due to get my truck back tomorrow and I have been told “that the problem is fixed in Detroit.” We shall see I guess.
Has anyone else heard anything along these lines?
July 25, 2023 at 9:19 am #771365
2023 Canyon Elevation, 2,200 miles: Similar problem here…. 1. cruise control kept “failing” and would only periodically re-activate. The dealer replaced the cruise control switch. 2. Periodic failures of various features. I got into a habit of stopping the truck, turning it off then restarting it to reinitiate the software. That usually worked BUT I became seriously concerned when the: “Emergency braking/stop unavailable” notice came on when driving. 3. After Cruise control switch was replaced, I drove the truck to home at 1pm last Friday, 1pm,. The next morning, the battery was dead. (battery charger read 5.1V left on the battery). Recharged enough to drive back to the dealer.
July 28, 2023 at 6:11 am #771818
Well I got my Denali back on Tuesday. They told me they fixed the problem with GM. So far so good!! Hopefully they fixed the root of the problem with the GM computer. I guess only time will tell. Good luck with your trucks.
July 31, 2023 at 6:05 pm #772355
Remember, I’m just the messenger however this came out from GM today
We are aware of the issue with certain trucks experiencing drained batteries, which may require the customer to jump start their vehicle. The spike in the rate of drained batteries has been tied back to a vehicle to server communication error. The root cause has been identified and a solution has been implemented. It is important for customers to know that the issue is not caused by the vehicle’s over-the-air (OTA) software update and are encouraged to complete the update when prompted by their vehicle.
If you have any 2023 Colorado or Canyon vehicles that have been towed in with a recent dead battery or driven in after a jump start due to a low battery, perform a battery recovery with the appropriate battery charger. If the battery passes and the vehicle has no outstanding battery draw, release the vehicle to the customer.
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