Help Needed!!

[BigM]

I’m having an issue with my 2013 Tahoe Z71:
While I’m driving on cruise control on the highway it sort of hiccups and check engine light comes on and goes off and when that happens the cruise control is off, center lock closes and sometimes the fuel gauge drop to zero (empty), then when it hiccups again it goes back to normal!!
I have a short video for this issue but can’t find away to upload it! If anyone can explain how to upload the video it will be clear to see how the issue happens.
Plus when I’m stopped at traffic light for example the rpm jumps making the whole car jump forward! And sometime it just die and shot off!!
It’s been going for a while …anyone faced such an issue?!
Appreciate the feedback
TIA

 

[wjburken]

I’m having an issue with my 2013 Tahoe Z71:
While I’m driving on cruise control on the highway it sort of hiccups and check engine light comes on and goes off and when that happens the cruise control is off, center lock closes and sometimes the fuel gauge drop to zero (empty), then when it hiccups again it goes back to normal!!
I have a short video for this issue but can’t find away to upload it! If anyone can explain how to upload the video it will be clear to see how the issue happens.
Plus when I’m stopped at traffic light for example the rpm jumps making the whole car jump forward! And sometime it just die and shot off!!
It’s been going for a while …anyone faced such an issue?!
Appreciate the feedback
TIA

To post a video here, people usually upload their video to YouTube and then post a link to it here.

 

[OR VietVet]

Get code(s) pulled and post them here. Sounds like the dreaded grounds problems that are documented here in several threads, especially in salt on the roads states.

 

[BigM]

Got the video uploaded via YouTube
Hope it is clear….

 

[swathdiver]

You really ought to put a scan tool on it to pull the internal BCM codes. First thought is a bad battery. Check your battery cables and grounds for corrosion for starters.

 

[BigM]

Replaced battery and cables… didn’t solve the issue…

 

[BigM]

Did a scan and got the following code:
P2161 Vehicle Speed Sensor "B" Circuit Intermittent/Erratic/High

Does that mean the VSS needs replacing? If so can anyone share part no. And location? And is it something I can do myself (diy) or must take it to the dealer?
Thx

 

[swathdiver]

Did a scan and got the following code:
P2161 Vehicle Speed Sensor "B" Circuit Intermittent/Erratic/High

Does that mean the VSS needs replacing? If so can anyone share part no. And location? And is it something I can do myself (diy) or must take it to the dealer?
Thx

My first thought is that that code is related to your instruments cutting out, some kind of short. How old is the battery? What is its state of charge in the morning? The answer to the latter can really only be answered by a bi-directional scan tool.

A subscription to AllDataDIY will allow you to test and replace the VSS (on the transfer case) if it is faulty.

 

[BigM]

Battery is new just replaced few months back along with the battery cables .,

So the mentioned code doesn’t mean that the VSS is faulty?

 

[intheburbs]

Battery is new just replaced few months back along with the battery cables .,

So the mentioned code doesn’t mean that the VSS is faulty?

I'd wager a dollar that one of your battery cables is loose.