Jump to content

2015 Silverado Disappointing

stan5050

By stan5050
in Troubleshooting & Recalls

Recommended Posts

stan5050 Enthusiast

stan5050

Posted
Posted

I am starting to get irritated with GM's quality control at least with my Silverado.  I have always bought GM as my father and wife's grandfather retired from GM.  Both my wife and I are Kettering University (old GM institute) alumni as well.  That being said, my truck is currently at the dealership because I shut it off while in the "auto" mode for 4WD which caused it to get stuck in 4WD mode.  Apparently, the fix for this is a $145 software update...  First of all, why does the truck allow you to shut it off while in auto mode and/or why does this cause an issue no one warns you about.  Second of all, if this is an issue, why is GM charging for a software update.  No other industry does this, if you choose to use more and more software in your vehicles then you should provide the needed updates.

Bash74 Enthusiast

Bash74

Posted
Posted
I am starting to get irritated with GM's quality control at least with my Silverado.  I have always bought GM as my father and wife's grandfather retired from GM.  Both my wife and I are Kettering University (old GM institute) alumni as well.  That being said, my truck is currently at the dealership because I shut it off while in the "auto" mode for 4WD which caused it to get stuck in 4WD mode.  Apparently, the fix for this is a $145 software update...  First of all, why does the truck allow you to shut it off while in auto mode and/or why does this cause an issue no one warns you about.  Second of all, if this is an issue, why is GM charging for a software update.  No other industry does this, if you choose to use more and more software in your vehicles then you should provide the needed updates.
I have never had a problem with turning the truck off and on in auto 4wd. I don't do it all the time but sometimes just forget. What does the update do? Does it not allow it to stay in auto when you turn truck off or what?

Sent from my SM-G935V using Tapatalk

j-ten-ner Senior Enthusiast

j-ten-ner

Posted
Posted
50 minutes ago, stan5050 said:

...Apparently, the fix for this is a $145 software update...  ...if this is an issue, why is GM charging for a software update?...

Interesting question.

A software doesn't wear out like a transmission or engine.

One does not need to change/update the software unless he wants to improve things.

But in your case it's not about improvement.

It is to fix the software because it was faulty in the first place.

Am I wrong?

 

so long

j-ten-ner

jacobrmiller05 Enthusiast

jacobrmiller05

Posted
Posted

i get where you are coming from, but any other manufacturer is going to charge for an update as well if you are out of warranty. How many miles are on the truck? this should be covered by the powertrain warranty.

stan5050 Enthusiast

stan5050

Posted
  • Author
Posted

I’m not exactly sure what the software update does yet as I haven’t picked up the truck yet but from what I’ve read there has been a couple TSB and even a recall (3yr/36k mile limit) for this issue. 

Bash74 Enthusiast

Bash74

Posted
Posted

This isnt specifically auto 4wd or turning vehicle on or off because it was happening in any 4wd mode.

Recall 15304
4wd always engaged in cold temp
Expires with base warranty
Updated calibration
Transfer case shift control module reprogramming with SPS 9101695.

In low ambient temperatures, below 5°F (-15°C) a transfer case brake motor assembly malfunction may occur. Diagnostic Trouble Code (C0398 - Range Position Correlation Fault) will be set, locking the transfer case in “4HI” until the vehicle is serviced.








Sent from my SM-G935V using Tapatalk

Donstar Senior Enthusiast

Donstar

Posted
Posted

This is why I like this forum!  It felt/seemed like my truck was still in 4 auto yesterday after switching back to 2 wd.   Maybe I should get this checked!  When there has been continuous snow I leave my truck in 4 auto.  I often shut my truck off while still in 4 auto and didn't ever hear or read that this was wrong.  Is it?  My last Sierra ('09)  got me through 6 Canadian winters treating 4 auto in the same manner.

diyer2 Senior Enthusiast

diyer2

Posted
Posted
On 12/29/2017 at 8:56 PM, stan5050 said:

I am starting to get irritated with GM's quality control at least with my Silverado.  I have always bought GM as my father and wife's grandfather retired from GM.  Both my wife and I are Kettering University (old GM institute) alumni as well.  That being said, my truck is currently at the dealership because I shut it off while in the "auto" mode for 4WD which caused it to get stuck in 4WD mode.  Apparently, the fix for this is a $145 software update...  First of all, why does the truck allow you to shut it off while in auto mode and/or why does this cause an issue no one warns you about.  Second of all, if this is an issue, why is GM charging for a software update.  No other industry does this, if you choose to use more and more software in your vehicles then you should provide the needed updates.

I agree with you 100%.

I think the answer is GREED or PROFIT.

Pick one or both.

:happysad:

 

FL335i Enthusiast

FL335i

Posted
Posted

I had the T-case software recall done in late 2014 or early '15 months after buying my truck new.  I leave my truck in Auto a lot when on the job site.  I do a lot of starting and stopping.  No issues ever with my Tcase.  I can tell night and day when my truck is in Auto Vs 2wd.   Never had an issue.  Sounds like the recall might have expired? Says it expires with base warranty which is the 3yr/36k IIRC.  Either way, call GM's CS # and see if they can help a brother out. 

Archived

This topic is now archived and is closed to further replies.

Go to topic listing

  • Recently Browsing   0 members

    • No registered users viewing this page.

  • Forum Statistics

    250.4k
    Total Topics
    2.7m
    Total Posts

  • Member Statistics

    342,791
    Total Members
    8,960
    Most Online
    d.lowrey
    Newest Member
    d.lowrey
    Joined

  • Who's Online   1 Member, 0 Anonymous, 5,346 Guests (See full list)

  • Latest Articles

  • Posts

    • Grumpy Bear
      J&L OIL SEPARATOR CO

      By Grumpy Bear · Posted

      Just did an injector/HPFP replacement on Pepper at 192,400 miles; close enough to 200K, RIGHT? (If 200K is considered life end and to me it isn't). But hey, to each his own.    Have never run a catch can on this vehicle. Back side of every valve looked like a new valve spray painted semigloss black. Port walls looked 'neat' (all a normal result of passive EGR via VVT) Zero build up even in AFM cylinders. Just color. It uses no measurable oil and never has.    At 155,000 I put her on E-85 and a borescope of the cylinders at plug change showed very clean pistons and valve faces. The replaced injector tips looked new. (It was the pump piston seal that was leaking). Oh well, have six good backups.    Still gets 28 mpg on gas (highway average) and over 20 (highway) on alky. UOA's look good and runs as good now as it did when I bought it. Better in fact.    What improvement would a Catch Can provide this motor?     And given all this I expect that IF I installed one I'd see some water/gas/oil vapor accumulation. Byproducts of normal combustion.   Having said that, IF my motor used an appreciable amount of oil I'd consider it a useful 'crutch' until I had the situation corrected OR if bore polished, until I junked it or rebuilt it to stave off repeated plug fouling.    I'm not telling you what I THINK. But what its DONE.          
    • Grumpy Bear
      Starting a new thread regarding mounting my 2014 OEM wheels to my 2026

      By Grumpy Bear · Posted

      Love the look. I'm a SCSB lover myself.    Two items. 1.) A spacer changes scrub radius but this also changes when we use wheels of different offsets. A little isn't a big deal. 2.) Steel wheels, alloy wheels all have different thickness. Same effect on the stud and lug nut as a spacer. When hub centric the wheel isn't supported by the stud. It's supported by the hub. The stud just keeps it all together.  
    • JAI3
      2016 Sierra 5.3L L83 new injectors now runs rich.

      By JAI3 · Posted

      I had a evap sol go bad a couple weeks ago. . I replaced it.  While watching live data at the time I saw I had some cylinder 1 misfires. No MIL but on live data I could see ~50 at startup and about 70 more after an hour a drive all on cyl 1.  I also noticed that the LTFT were -5% to -15% always.  And that bank 2 is always -3% richer than bank 1. Even across all driving modes, city, highway, etc it’s always 3% richer than bank 1. So I start with the misfire. Swapped coil, plug, and plug wires from 1 to 3. No follow. I got an Injector reseal kit, pulled the D/s injector rail, swapped #1 and #3 injectors, resealed them, reinstalled and retested.  The misfire followed to 3. So I ordered and replaced all 8 injectors, spark plugs, and plug wires. Also replaced the 1 time use fuel pipes under the intake manifold.  Injectors that were in the truck since new were  Part # 12668390.  I replaced them with # 12742701 Got from RockAuto. Pretty certain they’re genuine and the correct ones. I called a friend at a parts store who told me “the 12742701 were the correct superseded part # for the originals I was replacing”. So started truck after replacing all that and it’s running -15 - -30 LTFTs. I reset the fuel trims with GDS2 and drove it for a 60 miles trip each way. There have been no changes in the LTFTs.  I checked if the HPFP was leaking into the crankcase. I removed the pvc and watched the trims. No difference.  I checked the alcohol content and it was at 10%  I’m out of ideas here. Truck seems to run great. Just always rich on the fuel trims.  Anyone with any help or ideas would be greatly appreciated.  I ran an injector balance test just for the heck of it and it came back this. I’m confused.  I have gds2 and some other diag tools if anyone knows of anything I should test next.
    • Coastie05
      Will not stay in Reverse

      By Coastie05 · Posted

      Definitely needs to go back to the dealer. 
    • Grumpy Bear
      Wow I'm in a pickle. (Broke down truck) and a story.

      By Grumpy Bear · Posted

      No, but don't skimp on safe! 😉 

  • GM-Trucks.com Clubs

  • Popular Contributors

×
×
  • Create New...