Jump to content

Vehicle Information Reset?

Dr1ft3r
 Share

Recommended Posts

Dr1ft3r Enthusiast

Dr1ft3r

Posted
Posted

Today when I started my truck I immediately noticed that the fuel gauge looked different. When I looked through the settings I found that the display settings were set to metric instead of standard. I did not change it, it changed on it's own.

When I started looking through the information screen I noticed that my mpg stats had reset and so did the total hours that the engine has been running.

My odometer, trip a and b information and all other information appears to be unchanged.

Has anyone else experienced this? I thought maybe the truck had been updated OTA and it caused these things to reset. At least I hope that's all it was.

swathdiver Senior Enthusiast

swathdiver

Posted
Posted

I am not familiar with how the truck's update these days but usually when we see this it is because the battery voltage got too low at some point.

  • Thanks 1
Dr1ft3r Enthusiast

Dr1ft3r

Posted
  • Author
Posted
19 hours ago, swathdiver said:

I am not familiar with how the truck's update these days but usually when we see this it is because the battery voltage got too low at some point.

 

I suppose that's possible. I haven't noticed any voltage below 14v on the gauge though. I have the dashcam offered on the GMC accessories website and it runs in parking mode. But I have the cutoff voltage for it set as high as possible, which is over 13v I believe. I also drive my truck every day. so the battery should remain topped off.

  • Like 1
swathdiver Senior Enthusiast

swathdiver

Posted
Posted

On my truck, with the key on the voltmeter shows battery voltage, when the engine starts it shows alternator output.  If the voltage is always high and doesn't drop down it could mean that the charging system is nursing a worn out battery.

 

Multiple short trips do not allow the battery to become fully recharged.

  • Thanks 1
Grumpy Bear Senior Enthusiast

Grumpy Bear

Posted
Posted
On 3/23/2023 at 12:31 AM, Dr1ft3r said:

Has anyone else experienced this?

 

Yes. Happens to anything run by a CPU. Wife calls it "flipping a bit." She's and IT geek. A random voltage variation that puts things out of sequence in its world of ones and zeros. Her Terrian did this a few days ago. All the sudden by dashboard was in Dutch! Sometimes the backup camera takes a vacation. In both cases a key cycle fixed it. Even the human brain does this. Ever forget in the middle of a sentence what you were talking/thinking about?  A distraction sets that off more times than not. 

 

Another possibility. I also had a bridged cell in the new battery of my Buick cause a random voltage related issue. It started and ran fine but would toss lights on the dashboard. Low oil pressure, trunk ajar, hood open. Assuming there was nothing wrong with a new battery I lived with this for nearly a year thinking I had a wiring issue. When we finally checked it out a voltmeter showed it at 10.5 volts, but alternator behavior was normal. Starting it would dip to 9.8 volts. Enough to keep the coils, injectors and CPU happy but low enough to set off alarms. 

 

2 hours ago, swathdiver said:

Multiple short trips do not allow the battery to become fully recharged.

 

Yes, and not something we give allot of thought to. Also, leaving it parked for a few weeks while the CPU.s memory and antitheft are eating away milliamps of battery reserve. I put a Battery Tender on Pepper when left for weeks without running or anytime I notice that driving her for an hour does not bring the charging voltage under 15 volts. Do it once and she's right as rain until the next long nap where I neglect to put her on the Tender. 

  • Like 2
Dr1ft3r Enthusiast

Dr1ft3r

Posted
  • Author
Posted
14 hours ago, swathdiver said:

On my truck, with the key on the voltmeter shows battery voltage, when the engine starts it shows alternator output.  If the voltage is always high and doesn't drop down it could mean that the charging system is nursing a worn out battery.

 

Multiple short trips do not allow the battery to become fully recharged.

 

Yeah, I understand that. Most of the time the voltage hovers around 14v. But sometimes it's around 15v. I was under the impression that when the voltage was around 14v the battery was not being charged, but around 15v it meant that the battery was being charged.

 

Regardless, if the battery voltage was low enough to cause the CPU to reset, shouldn't it have also affected the starter? In my experience with vehicles in the past, the battery had to get low enough to cause starting issues before it would cause the CPU to lose it's memory.

 

I also have the 220 amp alternator and the vehicle runs at least 90 minutes per day or more and rarely for less than 15 minutes after being started. I put 6,400 miles on it and I've only owned it for 9 weeks!

 

I'm not ruling out a low or bad battery, but it seems less likely to me with no other signs or issues that I believe should be present if that were the case.

  • Like 1
Dr1ft3r Enthusiast

Dr1ft3r

Posted
  • Author
Posted
11 hours ago, Grumpy Bear said:

 

Yes. Happens to anything run by a CPU. Wife calls it "flipping a bit." She's and IT geek. A random voltage variation that puts things out of sequence in its world of ones and zeros. Her Terrian did this a few days ago. All the sudden by dashboard was in Dutch! Sometimes the backup camera takes a vacation. In both cases a key cycle fixed it. Even the human brain does this. Ever forget in the middle of a sentence what you were talking/thinking about?  A distraction sets that off more times than not. 

 

Yep, I haven't ruled this out either. As things get more advanced they become more susceptible to errors. Just look at Windows OS. When it was a basic OS with no frills it ran much better than it does now with all of the bells and whistles.

  • Like 2
Grumpy Bear Senior Enthusiast

Grumpy Bear

Posted
Posted
1 hour ago, Dr1ft3r said:

 

Yep, I haven't ruled this out either. As things get more advanced they become more susceptible to errors. Just look at Windows OS. When it was a basic OS with no frills it ran much better than it does now with all of the bells and whistles.

 

Heard a joke the other day. How do you get a computer to crash? 

 

Install Vista! 

  • Haha 2

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
 Share
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

    342,840
    Total Members
    8,960
    Most Online
    appletrav
    Newest Member
    appletrav
    Joined

  • Who's Online   6 Members, 0 Anonymous, 571 Guests (See full list)

  • Latest Articles

  • Posts

    • Core-Lokt
      Wiring Help, Please

      By Core-Lokt · Posted

      Thanks; I looked there a few minutes, and I think I can find something. I really never looked there, as I thought it was stuff like PTO/aftermarket bodies/accessories like snow plows.
    • newdude
      2 speed transfer case optional now?

      By newdude · Posted

      This is a 1/2 ton thing ONLY.  All HDs 2020-2026 have the two speed transfer case, with Autotrac as an option.     1/2 tons 2019-2026, regular 4x4s come with a single speed case (no 4LO!), and trucks with Z71 ordered, or all Trail Boss trucks come with the 2 speed case.  2 speed case is also an option on WT, and is also standard on High Country.  
    • newdude
      Different requirements for oil filters?

      By newdude · Posted

      2013 5.3 still to this day calls for the PF48 filter.  Which as a 15psi bypass pressure.     There is a TSB, 17-NA-157 that talks about the PF-63 and PF-64 filters which have a higher bypass rating of 22psi.    TSB HERE - temp.xml   "Beginning in 2012, the oil pumps began to regulate main gallery feedback instead of pump out pressure. This means that the oil pump now does not begin to regulate until pressure is built up to the main gallery. This change reduces the amount of time it takes to provide oil to the engine bearing and lifters during extreme cold start conditions.  Main gallery feedback oil pump control systems are present on the following engine families which use Spin-on oil filters: Small Gas Engine (SGE), Large Gas Engine (LGE), High Feature (HFV6) Gen2 and Small Block Gen5 gasoline engines. These engines with the main gallery feedback oil pump control systems are factory built with an ACDelco® oil filters"   It also calls out what engines use those filters.  The gen 4 small blocks were not on that list (LMG, LC9, L9H, L92, L94, L20, L96).  Gen 5 small blocks use the higher pressure filter.          That all said...   Your 7045 Napa filter is the PF63 equivalent, with 22psi bypass.  You are already using the higher bypass pressure filter.  You CAN keep using it, you don't technically have to use it though.  
    • Grumpy Bear
      Different requirements for oil filters?

      By Grumpy Bear · Posted

      Do you know WHY the filter relief setting was increased to 22 psig?    When the new system goes into the second stage the pump volume ramps up considerably. It was found that the 15 psi filter bypass setting put the filter in bypass on a warm engine when the second stage was activated. Raising the filter bypass setting forced the filter to do what it designed to do. Filter. Preventing debris from circulating during high load, high rpm operation.    So next question is how did GM find this out? VLOM/lifter failures and a deep dive by Melling Corp.    Last question. Is it required? Look at it like this; a motor may be equipped with a rev limiter. But it only works if the set point in reached. That 22 psig setting only matters if the pressure differential across the filter media exceeds 15 psig during normal warm operation. Second stage kicks in around 3000-3500 rpm.    I can't answer your question because I don't know you and how you use the truck. But I think there is enough information here to let you decide for yourself. 😉
    • Coastie05
      give me some tips to make my truck look better

      By Coastie05 · Posted

      Go back to OEM wheels. 

  • GM-Trucks.com Clubs

  • Popular Contributors

×
×
  • Create New...