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Electronic Glitch lost steering for one second, 2014 LTZ Crew

awright2009
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awright2009 Enthusiast

awright2009

Posted
Posted

So I have a 2014 Silverado LTZ Crew Cab 105k miles currently, I was driving home from the mall area just now making a right hand turn onto an access road with my right turn signal on. I was giving it a little gas as I noticed people were starting to get a green light on the left turn ahead and all the power went crazy. I lost the center console TV screen, lost steering, heard all of the locks sort of make clicking sounds. Then one second later everything came back up like normal. It might have even killed the engine, but I'm not sure if it did or not. The battery is strong, no issues with starting, and I drove it home without stopping or pulling over fine. No check engine light, I pressed the onstar button and had them run a diagnostic, they said something about traction control and shortly after they said that I got a pop up on the dash that said something like "brake assist" or something like that (I could be wrong, kicking myself for forgetting the exact notification, shouldn't of hit OK on it)

 

We put an ODB2 scanner on it anyway, nothing there, and my dad Hit clear on it anyway (maybe a bad idea if anything useful was saved there)

 

I know there were a couple recalls that I need to take care of, but not sure if it's related to an open recall or not

 

Let me know if anyone has any ideas, would hate to have it happen again in a higher speed situation

Mozzer Enthusiast

Mozzer

Posted
Posted

First step might be battery ground cable, they seem to be a common issue without necessarily being loose or showing obvious corrosion etc.

2014, 5.3, 4x4, work truck

awright2009 Enthusiast

awright2009

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  • Author
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So I just got the code email from onstar, I have the following:

 

Module

ECM Engine System

Diagnostic Code

P155A

Diagnostic Information

An issue has been detected in the Traction Control System

Recommended Action

Service at your convenience

 

 

RACERX7775 Enthusiast

RACERX7775

Posted
Posted

G218 ground problem. Its next to the top left dash speaker. Common issue. Others have had the same issue and said it was the negative battery cable.

awright2009 Enthusiast

awright2009

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Posted

Yeah I was watching that video on the G218, I'll check my battery cable again later (my dad said it was fine, he looked at it before connecting the OBDII) I'll probably go to the dealer for recalls and ask about it, might have them do it before popping my dash apart, but it doesn't look too bad to mess with the driver side ground there so if they want too much I might make the attempt

awright2009 Enthusiast

awright2009

Posted
  • Author
Posted

Just to follow up, was planning to drive it Monday and deal with the issue next weekend, but the first right turn at a stop sign in my neighborhood killed the truck. Since I had to get to work I borrowed a car and my dad took it to get the recalls done and talk with them about it. (He managed to drive it in, with a follow vehicle)

 

They finished two recalls pretty quick (think it was a software update) and the trucks seems fine so far (drove it to work this morning) so I think it was the “Loss of power steering assist” recall doing it

 

I might have a weak ground still as this morning I noticed some dash flickering with headlights, fog lights, wipers etc But it must be connected well enough to make it

 

I’ll update here if it happens again though, but like I said it was low speed turns, which probably stresses the electric power steering a lot

  • Like 1
Ozer Enthusiast

Ozer

Posted
Posted

Do you have the original battery? If so, you need one asap! They last about 3 years max on average.

To be safe, pull a second ground cable from the negative side to the ground bolt next to the brake booster on the firewall. (this fixed all my issues)(ground cable from autozone)

Do the dash ground fix when you get a chance. All this should basically fix everything.

  • 4 years later...
maillet282 Enthusiast

maillet282

Posted
Posted

@awright2009 did you ever figure out this issue. Having similar issues as what you described and was able to pull the P155A dtc code. Just wondering what you did to actually fix this issue 

  • 3 weeks later...
awright2009 Enthusiast

awright2009

Posted
  • Author
Posted

So I haven’t had a problem with it since, I assume it was the recall as I doubt the dealer popped the dash apart. I think power steering related. My assumption is a voltage drain from power steering working harder than it should killing the truck 
 

just recently replaced my thermostat and Engine Coolant Temp sensor as I was getting no temp reading and fans again which is what brought me here and happened to see this pop up. So lucky timing

 

Lucky twice really as my phones battery just died and I figured I would have to type all that again, but it stayed saved 

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