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Battery reset question

Glava2876
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Glava2876 Enthusiast

Glava2876

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2020 Sierra Denali 6.2

I have lost adaptive cruse control. Lane assist and rear view camera mirror.

Looking for help one last time before taking my truck to the dealer.

Tried pulling the battery cable off for 15 minutes and no change.

I pulled just the negative cable, should I pull the positive too?

Some say to leave off for 15 minutes, but I saw another that said 30 minutes -so should I go longer this time?

PhilB Enthusiast

PhilB

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Does your truck still have the original OEM battery?  That would be my first place to look.  These trucks are very sensitive to voltage changes.  A battery that is starting to go bad, i.e. bad cell, will start causing all kinds of wonky issues.  If you are still under warranty, take it to a dealer.  If your warranty expired, try a new battery.  

bobder41 Enthusiast

bobder41

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If you change the battery I believe you have to tell the computer it's a new battery. If not it will have more issues.

newdude Senior Enthusiast

newdude

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At this point I'd have it scanned for codes system wide.  A dealer can do it with the SAVI device they have and I'd imagine a dealer can at least read them for free.  The one by me does.

 

Question though.  Does your auto stop/start still function after replacing the battery?  

 

 

Edited by newdude
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PhilB Enthusiast

PhilB

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2 hours ago, bobder41 said:

If you change the battery I believe you have to tell the computer it's a new battery. If not it will have more issues.

How would the computer know that the battery is changed?  It's not like the battery has a chip or something that puts out an identification code.  Should not have any issues with replacing the battery.

 

1 hour ago, newdude said:

Question though.  Does your auto stop/start still function after replacing the battery?  

My auto stop/start quit working on my truck when the battery first started going bad.  Was still under warranty so had the dealer deal with it.  They said that a cell was going bad.  I think one of the criteria for the auto stop/start to function correctly is the battery voltage has to be at or above some value.  Dealer replaced the battery and everything has been fine since.

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Glava2876 Enthusiast

Glava2876

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Actually have a new ACdelco battery because of it going on 5 years old.

Every thing I read says that the camera is bad or possibly may be able the recalibrate/ restart the system -looks like a dealer only option to sort it out?

Glava2876 Enthusiast

Glava2876

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22 hours ago, newdude said:

At this point I'd have it scanned for codes system wide.  A dealer can do it with the SAVI device they have and I'd imagine a dealer can at least read them for free.  The one by me does.

 

Question though.  Does your auto stop/start still function after replacing the battery?  

 

 

Yes stop start still working-also have the factory switch that allows it to be turned off in a2020 -only 39k miles, but out of warranty.

newdude Senior Enthusiast

newdude

Posted
Posted (edited)
34 minutes ago, Glava2876 said:

Yes stop start still working-also have the factory switch that allows it to be turned off in a2020 -only 39k miles, but out of warranty.

 

 

I'm betting at this point you've got a camera fault code, which is why I suggested having it scanned for codes.  If there is a fault code, the frontview camera will need to be replaced and then programmed and setup at the dealer.  

 

You won't have forward collision, lane departure or adaptive cruise (if you have that) without a functioning camera.  

Edited by newdude
Glava2876 Enthusiast

Glava2876

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5 hours ago, newdude said:

 

 

I'm betting at this point you've got a camera fault code, which is why I suggested having it scanned for codes.  If there is a fault code, the frontview camera will need to be replaced and then programmed and setup at the dealer.  

 

You won't have forward collision, lane departure or adaptive cruise (if you have that) without a functioning camera.  

Thanks, that’s were I am at this point -going to have to get it into the dealer to verify. 
I wonder what it will cost if the camera is bad?

newdude Senior Enthusiast

newdude

Posted
Posted (edited)
1 hour ago, Glava2876 said:

Thanks, that’s were I am at this point -going to have to get it into the dealer to verify. 
I wonder what it will cost if the camera is bad?

 

 

MSRP is $582.76.  85636221.  You can probably install it but its still going to need programming and learn mode done at the dealer.  Which the pricing on that will vary of course but figure 1 hour labor, some might charge more than that.  

Edited by newdude
redwngr Senior Enthusiast

redwngr

Posted
Posted

The battery is managed by the computer.

It's in the 20 year range since they used just a simple regulator.

 

There is a list of items that prevent Autostop/start activating.  Battery condition is on the list. 

  • 2 weeks later...
Glava2876 Enthusiast

Glava2876

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Picking up my truck from the today. They did a reflash because the were several sensor& module communication errors. I’ll post what the invoice lists.

Glava2876 Enthusiast

Glava2876

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Ok, there were several sensor/ module issues, so they did a software update and good as new. Cost was just over $200.00 with tax.

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