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2018 Silverado Battery Change now having issues

9999usmc

By 9999usmc
in Troubleshooting & Recalls

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9999usmc Enthusiast

9999usmc

Posted
  • Author
Posted

Dealer troubleshooted said one of the fuse box wires on the tray that sits on top of the battery wasn’t connected.  I didn’t see any wires not connected when I check, but it’s working now and all is good.

  • Like 2
CrawlSlow Enthusiast

CrawlSlow

Posted
Posted (edited)

My guess is, it's probably post #1. That one has two cable connected to it. If you don't look carefully, you'll missed the second cable for sure, everything will look correct with just one cable until you starts poking around.

Edited by CrawlSlow
  • 4 weeks later...
jetcity2000 New Member

jetcity2000

Posted
Posted
On 9/18/2021 at 7:28 AM, 9999usmc said:

Yeah, checked.  Called dealer yesterday and asked if they have ever heard of something like this and got a quick, you can bring it in and we will run a diagnostic check….

 

saw a post on here who had same problem but he hasn’t replied if he got his issue fixed 

make sure you plug the light blue plug in below the pos post

 

  • 11 months later...
VERSE13 New Member

VERSE13

Posted
Posted (edited)

Awesome post, had the same issues after a battery change, help me out a lot. After searching I found this wire tucked away. Sure he forgot about it. 
 

 

F8DCDC17-240D-4E3C-8621-8A6D7AE0CC19.jpeg

Edited by VERSE13
  • 4 months later...
Topkicker Enthusiast

Topkicker

Posted
Posted

Thanks to everyone who contributed to this post with solid information and picture. I moved this 2nd cable way out the way while removing battery and overlooked it when going back together. Saved me a trip to the dealer! Just wanted to say THANKS!

  • Like 2
  • 1 year later...
Sney New Member

Sney

Posted
Posted
On 9/18/2021 at 8:04 AM, 9999usmc said:
My 2018 Chevy Silverado was fine until after AAA replaced my battery as it had a bad cell and wouldn’t keep a charge.  I watched them replace it and they did every correct (negative side first, etc).
Now my windows won't roll up or down,..ac stopped working, my radio screen is dark, only the left side turn signal works, no power door lock, no steering wheel controls…..
 
I checked all the fuses and nothing looks blown, I disconnected both terminals for a few hours and reconnected thinking something would reset, but no joy….
 
Any suggestions?
 

My 2018 1500 just did a similar thing. Battery is draining somehow and when i Jump it the passenger windows wont roll down, stereo wont work, ac wont work and only the left front blinker works, no brake lights. battery and alternator tested good. Please help?!?!?!

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