15 denali

Update tires of the truck acting crazy . So I dropped it off at the dealership to have my good friend look at it and see what’s wrong to fix it .

I’m not sure if it is but it’s got an interstate battery in it so I’m guess it’s been replaced. But I don’t have a voltage meter to check it that was one of the bulletin he sent me was the battery cables and the grounds they are all tight if no sign of defects . I just hadn’t check voltage. And the other is that it needs to be reprogrammed. I’ve had no fuses blown or anything . But with the things it does it could be one or the other so I’m taking it to a shop Thursday to have diagnostic done and reprogrammed. It’s just weird the man I got it from I speak with him on a normal bases and had never had any issues with the truck . And he had it sense new .

I spoke with my friend today who has worked for GM for 25+ years he sent me to bulletins that so this problem happening . It’s either needs to be reprogrammed or it’s something to do with the battery cables .

It’s used one owner truck got it from an older man who never drove it hardly .

Yes that’s what happens sometimes it freaks out and it’s normal then it does this then it goes off and then goes back to reading temp and such normal.

That’s with the truck running I can see the navigation screen has power but no picture and no thing on the dash at all. Also the other day I started it and the navigation screen icons popped up for a bit but couldn’t press anything . Everything else works fine in the truck .

Works and everything else the only things that don’t as the dash and the navigation screen . And I also can’t hear my turn singles but can see them working on the mirrors

That’s with the truck running .

Well here I am again it work for like 2 days then back to not working again . I ordered a hmi and just replaced it and still nothing I’ve checked all my fuses and none are blown. Help please .

Yeah it was great news and will do! Thank you and marry Christmas to you as well!

Well I have figured out the issue I’m sure I put in some aftermarket leds headlights bulbs and well I decided to remove them just to see and put the factory yellow bulbs back in and got up this morning and opened the dirt everything is working completely fine . That’s just crazy . So now I have to do some research and get some actual led bulbs that won’t effect that problem from happening again .

Ok cool I really appreciate the help . I’ll run through everything one more time tomorrow and see what I come up with . And also to know if it’s bad would I need to take it to the dealership to let them run a test to determine if that the issues if I can’t fine anything myself.

And it that the box that you remove the glove box to get to with like 5 plugs or something .

Could lead me in the right direction cause I really shouldn’t be driving it until it fixed and I’d like to do what I need cause I have no idea what’s going on and I just got the truck about a week ago and haven’t even drove it but once . And I appreciate your help