How to disable TC and stabilitrak?

[Backhoe]

I have a 2021 Tahoe and if I turn hard while "trying" to accelerate the gas pedal goes completely dead. Pretty unnerving. In the manual it says that you can turn off both systems with the TSC button, but they will both be turned back on automatically after the vehicle reaches a certain speed.
On page 244 of the 2021 manual:
"For vehicles with four corner air suspension
StabiliTrak/ESC will automatically turn on if
the vehicle exceeds 32 km/h (20 mph)."

Anybody know how to disable this?

I found some posts in pre 2021 threads that discussed putting in a switch to "pull" the ABS fuse.

Does anybody know if this will work on a 2021 and if so what fuse? I couldn't find one labeled ABS.

 

[Chad G 1979]

What use case are you trying to turn hard and have good acceleration? I have no issue with turning and acceleraing. However im not trying to turn a sharp corner and floor it either.

 

[GTPace500]

What use case are you trying to turn hard and have good acceleration? I have no issue with turning and acceleraing. However im not trying to turn a sharp corner and floor it either.

That's not what he asked, though. Who knows why he'd want it: to get out of an emergency situation? avoidance of someone or some thing? In any event, the response didn't help.

@Backhoe as far as i know, you'd have to completely disable the ABS circuit since it's tied to those systems. For this reason, people either pull the fuse (which some people don't want all the time), or install a bypass switch to turn it off/on as needed.

 

[Chad G 1979]

What emergency driving would you need to turn hard and accelerate? As ive never needed that. Turning hard and stopping? Quite a few times. Why would you risk losing vehicle control by turning off tcs and turning hard and hard acceleration in emergency driving situations? Losing control doesnt help anyone. Is this for normal driving or offroading? Turning a corner from a light? New issue? Or always done this? Possible that its a new issue and if umder warranty get it looked at,. If always done this then may need to figure out what is causing the system to not allow you to accelerate in the turn. Driving aggressively? Tires worn? System malfunction? Which is why i asked for more info @GTPace500. Driving habits and what actually happened and more details can help folks help the OP figure out course of action. Side note. Did a u turn last nighton main street with traffic coming from full stop and wheel locked vehicle and accelerated firmly and had no acceleration issue. Tired grumbled about it slightly but otherwise had good acceleration.

 

[Backhoe]

That's not what he asked, though. Who knows why he'd want it: to get out of an emergency situation? avoidance of someone or some thing? In any event, the response didn't help.

@Backhoe as far as i know, you'd have to completely disable the ABS circuit since it's tied to those systems. For this reason, people either pull the fuse (which some people don't want all the time), or install a bypass switch to turn it off/on as needed.

@GTPace500 Thanks. Do you happen to know which fuse will disable the ABS? I looked through all the fuse labels but, they must have a new acronym for it because I did not find one that had ABS in the label.

@Chad G 1979 - This has happened since day 1. During a hard, greater than 90 degree downhill turn(steering wheel not locked) there are several seconds where the gas pedal is dead. Its unnerving to say the least. I think this article best describes the problem.

2021 Chevy Tahoe Diesel's Skidpad Performance Limited by Top Speed

The saga of exceptionally low cornering results for GM's new family of large SUVs continues, with the Tahoe diesel being the worst one yet.

www.caranddriver.com

"The stability control system is so invasive that we had to shift into 4Low to disable it before we could achieve maximum skidpad performance. In two-wheel-drive mode, the system severely cuts power when cornering near the vehicle's limits. Even when testing the new Tahoes on the public roads we use to determine our annual 10Best awards, we noticed stability control butting in."

 

[Pertzbro]

My Ram truck has the same issue - i live in Iowa with a ton of gravel roads, and or in snow storms - you cannot whip it side ways or do donuts at all... the truck wont allow it even with common traction control work arounds. Maybe you can with offroad versions...

 

[B-train]

@Backhoe I think you are on to something with your description. Being that the truck weight is biasing forward and then a sharp turn, the system can sense those changes and probably is trying to prevent a rollover.

It would be super annoying for sure. Does it act the same on level ground, or going uphill while turning?

 

[steiny93]

My Ram truck has the same issue - i live in Iowa with a ton of gravel roads, and or in snow storms - you cannot whip it side ways or do donuts at all... the truck wont allow it even with common traction control work arounds. Maybe you can with offroad versions...

In ram world you have 3 options (2014-202x 1500's I believe is the working range):

1) press the TC button once, it disables the first layer
2) press and hold the TC button, its like 7 seconds, it will disable as much as you can from the TC system, significantly better but still ABS integration
3) pull the TC fuse; I believe it's number 27; doing so removes all the of TC and ABS functions. Now it's in full hooligan mode, no help, no safety net.

I use my Ram on the lakes in the winter, with TC on the ABS overheats very quickly and the truck gets very unhappy. I have a transmitter which disconnects the fuse; works hyper well.

 

[Pertzbro]

In ram world you have 3 options (2014-202x 1500's I believe is the working range):

1) press the TC button once, it disables the first layer
2) press and hold the TC button, its like 7 seconds, it will disable as much as you can from the TC system, significantly better but still ABS integration
3) pull the TC fuse; I believe it's number 27; doing so removes all the of TC and ABS functions. Now it's in full hooligan mode, no help, no safety net.

I use my Ram on the lakes in the winter, with TC on the ABS overheats very quickly and the truck gets very unhappy. I have a transmitter which disconnects the fuse; works hyper well.

I do know the second layer removal of holding the TC button down but I believe over a certain speed it kicks back in... I've never had the need to pull the fuse. I also run snow tires in the winter so i'm not usually trying to get crazy.

 

[steiny93]

I do know the second layer removal of holding the TC button down but I believe over a certain speed it kicks back in... I've never had the need to pull the fuse. I also run snow tires in the winter so i'm not usually trying to get crazy.

I haven't noticed this with the GMC's; but the Ram's, if you are on the lake in snow, the TC even with the long press, will not let you spin the tires without the ABS getting aggressive. As a result you end up constantly bumping into the TC and the ABS pump will overheat, you get a message on the dash and you get put in limp mode.

I've never needed the fuse delete solution in GM land, in Ram land, significantly different use case.