Rinconmike

Had my 2023 GMC Sierra 1500 Ultimate in for service and state inspection at the GM Dealership. Had to get a new state inspection. While removing the old sticker, the tech not only nicked up the plastic under the sticker (lower left of windshield) but cut the leather dashboard in front. The leather cut is around 1/4". Besides seeing it, my concern is that the cut will open up over time. The plastic under the sticker I am not concerned with. Can only see it if you go look for it. Manger accepted responsibility and said they can order a new leather cover panel that goes across the entire dash. Anyone know if it is a big deal to replace that entire dash cover? Manager thinks it just snaps in but was not sure. He will get back to me. I googled it but could not find anything on replacing it. I am concerned trying to replace this leather cover they damage something else. As long as the cut does not open over time due to heat, probably not a huge issue. thanks,

Could it be that you changed the battery so the sensors need to calibrate again? also Someone with an escalated had this issue and noted from when he took to a dealer: Diagnostics showed that one of the front short range radars was in the incorrectly learned position. They did a position relearn and that fixed it. Works perfectly again.

You can check for app updates. I think go to play store and top right click installed apps or one of the icons next to it. I am not in front of it right now.

Mine seemed to fix itself at around 3,000 miles (I forget exact mileage but might have it posted earlier in this thread). Not sure if the system needs some miles on it for it to work (learn) or not. Dealer was not helpful the times I brought it in for this. They wanted to take the days apart and replace modules. I chose not to. Perhaps wait a few thousand miles and see if it starts to work.

Thanks for the replies. On the 2023 GMC Sierra 1500 I do around 20,000 to 25,000 miles a year. Both highway and city miles. I want to take care of the truck. On the 2017 Yukon i did every +/- 5,000 miles. I may just shoot for that on this was well or might do 6,000. It is not the cost of the service for me, it is the time to bring it in. On the leases, I may just do the GM recommended 7,500 (or watch the oil monitor). I have two identical 2022 GMC Terrain AT4 for my two kids.

On my 2017 GMC Yukon Denali with 6.2L I changed the oil every 5,000 miles. I think the oil like was around 30% at the changes. I use the local GM dealer for service. I now have a 2023 GMC Sierra Denali Ultimate (own) and recommended mileage for oil change is 7,500 miles. I have 4,900 mile after around 2.5 months and the oil percentage is 35%. Is there a recommendation for these? Good to stick to the 5,000 miles or 6,000 miles or the 7,500 miles. I plan to keep this truck to around 100,000 miles. I also leased a 2022 GMC terrain for one of my kids. After around 6 months it is around 5,600 miles and 27% oil life. This too notes recommdened around 7,500 miles. What is the recommended oil change on this. This lease will will most likely trade in and not buy at the end of the lease. thanks, Mike

moved

I need to change out the bulkhead seal on my 2023 Sierra 1500 Denali with factory spray in liner. When I take the old bulkhead seal off, do I clean with rubbing alcohol (I have 70%) or with something else? thanks, Mike

I still did not bring my Truck back in to service to check out The Super Cruise Auto Lane Change. However, on Friday 6/17, all of a sudden the auto lane change started working. Both automatically or if I initiate with a blinker. No OTA system updates in several weeks. I did get a Google Maps update around 6/16/23. I had around 3,700 miles on the truck. I do not know if the mileage driven or the google maps had anything to do with it or of these have nothing to do with it. I tried and it still worked on 6/18 and 6/19. I will keep an eye on it and hopefully it does not stop working!

To bring this thread back to the issue of Lane Change not working. GM still has not provided any update on solving the Auto Lane Change with Super Cruise. Super Cruise works good on my truck, just not the auto lane change. The answer from GM Customer Service is go back to the dealership. I was hoping they would get someone above the dealership involved but have not. I may ask the dealer to review again in another month or two when I have some time.

After this last OTA update, the infotainment system seems to run slower. Google maps take longer to load. Separate, I was able to download the Waze app so do not need to use my iPhone and Waze info now displays in heads up. But even slower than Google maps to get started.

The issue it seems like GM is not listening so who knows when we will see a fix.

@annon89 have you brought it to the dealer? If so, what did they say and what did they try?

I adjusted the rails. Both rails went back to bulkhead around 1/8". I think the installed lined the rails up with the tailgate instead of the bulkhead. I have not had heavy rain since to see how it does in the rain. I sprayed it down lightly with a hose and the only leaks are at the bulkhead and some at the tailgate. I need to change the bulkhead seal. The installer did a poor job and in the middle some of the seal is at the rolled part of the bulkhead so the full 3/4" of the gasket is not sticking and water comes in under. I called Bakflip (although this is a Rev) and they sent me a new seal. It is a little different where the top is smooth on the bakflip seal where the rev has grooves like in the photo. The rev one feel a little stiffer. Here is a photo of the bulk head seal. After taking it off and putting on, it is not that difficult and next time I will just do myself.

Thanks. Most the times i use the step, but sometimes I do not. I will make it a point to use it. I am looking at the Adams leather cleaner and conditioner.