Factory Radio Dims or Restarts When Traction Control Activates

[George B]

2013 Suburban LTZ 4WD
Condition:

• Cold as balls out.
• Snow covered roads.
• 2WD mode
• Radio on and playing happily.

When the above conditions exist and I am attempting to accelerate from a stop in 2WD the tires will spin and the truck will activate the traction control and/or the Stabilitrac. When this happens the Factory Nav radio will either dim or restart completely. It has to be a significant wheel spin that includes both rears when the G80 activates. I have done no troubleshooting to date. First on the list is to clean up the battery terminals to ensure clean power from there. Can someone point me to where the power for both the Nav Radio and the traction control comes from so I can chase it back to either a supply or ground issue?
Easiest fix is to engage the AUTO or 4HI modes but I can't just ignore the issue. I don't know if it will do it in those modes because I have to be way too aggressive to get it to activate the TC/ST systems.

Note:
If someone can point me to a clean thread that outlines the "Big Three" upgrade I would appreciate it. More power is always better.

Thanks in advance.

 

[gooffeyguy]

See if it still does it with the traction control/Stabilitrak disabled. Hold the button in for a few seconds to disable both (although it doesn't disable the brake traction control, gotta pull the ABS fuse to do that).

I do know that when the TCS/Stabilitrak system is activated, it will disable cruise control ifbit is being used.

Sent from my SM-G930V using Tapatalk

 

[George B]

See if it still does it with the traction control/Stabilitrak disabled. Hold the button in for a few seconds to disable both (although it doesn't disable the brake traction control, gotta pull the ABS fuse to do that).

I do know that when the TCS/Stabilitrak system is activated, it will disable cruise control ifbit is being used.

Sent from my SM-G930V using Tapatalk

Several tests today:
With everything disabled there is no visible glitch in the radio.

With everything enabled and I couldn’t duplicate it today.

Did note a lower charging system voltage today v.s. yesterday.

Still thinking a battery cable cleaning or a big three upgrade.

 

[Big Mama]

Could be the battery too.

 

[Big Mama]

Here’s a big 3 thread. The pictures are gone but it explains it well enough. Don’t forget to check your ground cables whether you do the upgrade or not.

https://www.tahoeyukonforum.com/threads/big-3-upgrade-directions-w-pictures.19597/

 

[Bill 1960]

If you have a scanner that will activate the ABS for bleeding you may be able to reproduce the issue in the garage to aid with diagnosing the source of the voltage drop.

 

[George B]

Tried like hell to make it do it today with no luck. Who knows!
Will check cables and move on. New battery goes in this fall.

 

[George B]

If you have a scanner that will activate the ABS for bleeding you may be able to reproduce the issue in the garage to aid with diagnosing the source of the voltage drop.

Yes, I have a tech2 clone. Will try this when its not cold as balls out.

 

[George B]

Issue resurfaced today. I noted it does it when the voltage needle is up higher on the gauge.
That charging scenario is related to when I remote start the truck.

 

[George B]

Went and checked the battery connections. Found the ground to be a bit loose. The terminal turned easily when I went to loosen it. Cleaned and tightened.