Cold weather errors (trailer connection & sensors)

Opiedeegs · February 27, 2019

Talked to dealer yesterday. Even knowing they say the fix will be ready in 7-11 days, they said that could be 30 days in GM time. If anyone has gotten the reprogramming this week, has it worked? They also gave me what fuses to pull to stop this issue. These fuses are for the Power Source and Trailer Integration. If you are going to be pulling anything, you CAN NOT pull these fuses, but is you are not you can. The fuse numbers are 74 and 82. I have not done this as of yet, if anyone does, can you post if this resolves this issue. Wish GM would come out with a common message for everyone instead of giving different people different messages.

So 74 and 82 are OK to pull

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ajwineski · February 27, 2019

@Opiedeegs according to the Service Manager I talked to, those fuses are alright to pull, if you are not pulling anything. I am not sure what will work and what wont after pulling them, but it will take care of the issue of all the alerts popping up after temp drops below 20.

Chevy sad · February 27, 2019

So we can’t pull trailers now? Clearly if this fixes the issue they need to replace some wiring and connectors.

The service tech called me with the same BS about pulling fuses. Have appt tomorrow for them to look at it, for the forth time!!!

KA0S · February 27, 2019

I'm not looking to have fuses pulled.....So hopefully this fix they have actually works.

OnTheReel · February 27, 2019

50 minutes ago, KA0S said:

I'm not looking to have fuses pulled.....So hopefully this fix they have actually works.

Yeah no way we should have to pull fuses on a 60k dollar truck to make it drivable. Heading to the dealer in the morning to see if there’s any new developments.

Opiedeegs · February 28, 2019

This is crazy

One of the main reasons I bought this truck is to pull a 22 foot inline aluminum snowmobile trailer in cold weather conditions

Very busy this year otherwise I would have used the trailer several times by now

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Chevy sad · February 28, 2019

Maybe they just make these trucks for soccer moms in the desert. Lol.

Its really hard to see how they would even suggest pulling fuses. Think about it, the system has been identified so just replace it. they are being short sighted, what is the cheapest thing we can do. They could think, we want repeat buyers, so we are going to fix this now

MX86 · February 28, 2019

Known issue with tech and engineering group, service TSB on it with no current fix out yet

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ajwineski · February 28, 2019

14 hours ago, ChadG said:

My truck went in and came back yesterday with the "new fix". I am out of town so the wife took it in. She said the error popped up that morning and she did not experience that evening when they brought it back to her. I get back tomorrow and temps are supposed to be below 20 all weekend so I'll get it out this weekend for a better test. Ironic this fix showed up right after I had a buy back request submitted and the attorney general's letter arrived at the dealership (submitted a complaint online to start procedures around the lemon law). I am going to assume that since they are telling others 7-10 days that I may be part of their QA process on the new program... or they just took it in to buy some time. At this point neither would surprise me.

Please let me know if their fix worked when you get back to driving your vehicle.

TheNEWbGuy · February 28, 2019

I was couple hours away from purchasing a new AT4 today until I found this form/thread.

took the truck for a 2nd test drive and see it popping up. Asked him about it and he said he'd never seen it before or heard of it.

I walked away... too bad really liked the truck, but not worth what ya'll are going through.

OnTheReel · March 1, 2019

3 hours ago, TheNEWbGuy said:

I was couple hours away from purchasing a new AT4 today until I found this form/thread.

took the truck for a 2nd test drive and see it popping up. Asked him about it and he said he'd never seen it before or heard of it.

I walked away... too bad really liked the truck, but not worth what ya'll are going through.

Well I hope GM is reading this thread and watching their sales float away. A lot of dealers and sales guys know nothing of the issue because they haven’t sold a whole lot of these yet. Especially the higher end ones that have this “feature”.

My dealer didn’t know of any updates to fix this issue yet as of this morning. They promised to call me, GM promised to call me, so I guess I just sit and wait.

OnTheReel · March 1, 2019

That being said, my truck did not do it at all today, and it was 14 degrees. Maybe just dumb luck...

Chevy sad · March 1, 2019

Mine was in the shop for what was supposed to be 4-5 hrs. Now a day or two. They now say the audio module behind the back seat needs replacement. It can cause many alerts. Also, there is a module mounted on the backside of the FREE-KIN bumper that has mud on it. That caused the side detection to fail! What we can’t get mud or water on our trucks? GM get off ur duff and move this!!! WOW! Proud of the dealer telling the truth.

TheNEWbGuy · March 2, 2019

So the salesman called me today saying that GM have solved this issue with a software update (seems suspicious that the day after I said I wasn’t going to buy the truck that they magically found the solution) and that other dealership will be getting the news on Monday.

I asked for details about the update and he couldn’t tell me anything.

has anyone else heard anything ?

ChadG · March 2, 2019

1 minute ago, TheNEWbGuy said:

So the salesman called me today saying that GM have solved this issue with a software update (seems suspicious that the day after I said I wasn’t going to buy the truck that they magically found the solution) and that other dealership will be getting the news on Monday.

I asked for details about the update and he couldn’t tell me anything.

has anyone else heard anything ?

A software fix has been released. I have been pushing hard on this for the last two months and received a call this past Monday. You can look back and see that another individual received the same information that day as well from his dealer. My truck went in on Tuesday but I was out town so I have just been home for two days. No issues so far - but the temps have been above 22 (seems to be the magic number for my truck). This weekend we are getting back down into the single digits so I will see how it goes.

As suspicious as it seems I believe it was just lucky timing that dealer was able to give you that response. What we don't know is if this software fix has been fully regression tested and will alleviate the issues.