Electronic Limited Slip Differential activation

[CCPLuvr]

All.
I spent some time looking through the owner's manual and what I could find online without an answer. I did see that the owner's manual said Terrain mode uses eLSD but no other mode mentions it's use. What activates the eLSD in our vehicles equipped with this feature? Is it always trying to detect slip then activates or is it only in specific modes?

 

[Hobert]

I believe it's automatically engaged. Kind of like the old G80. Here is a good description although it is the corvette's eLSD.

 

[WalleyeMikeIII]

It is always on...wheel slip will activate it.

 

[CCPLuvr]

It is always on...wheel slip will activate it.

I hope that's the case but GM doesn't explain that well anywhere.

 

[WalleyeMikeIII]

That is the case....that is the entire poit of the eLSD...open when road conditions require, and locked up when needed.

 

[CCPLuvr]

I understand how it functions, that's one of the reasons for wanting the air suspension package. But GM only references it in Terrain mode in the owner's manual. How do you know it's active all the time? I find it odd that's the only mode it's referenced in. I hope it's not the case but if it is I'll truly be disappointed.

 

[CCPLuvr]

Here's an interesting video showing the eLSD engaging in 4LO. From this, and at least this mode, I'd say it's not engaged all the time.

 

[Doubeleive]

Here's an interesting video showing the eLSD engaging in 4LO. From this, and at least this mode, I'd say it's not engaged all the time.

well couple things, the system operated "as designed" in that video
the tires were not great for that terrain, but with increased speed it would make it through what they showed with no real problems
the 3rd thing is not many people are going to go spend $100k+ on this vehicle and then go out and do what they are doing, because it is going to get damaged either by poor ground clearance or trees and bushes scratching the hell out of it.
In some cases the electronics are not doing you any favors at all

 

[WalleyeMikeIII]

Here's an interesting video showing the eLSD engaging in 4LO. From this, and at least this mode, I'd say it's not engaged all the time.

Perhaps you need to better explain what you mean by "engaged all the time."

The differential is not locked all the time, as this would defeat the purpose of having an eLSD.
I do believe it is "enabled" all the time, meaning: electronics constantly monitoring for wheel slip, and if that occurs, engaging so that it vectors the torque to the rear wheel that has traction and away from the one that does not.

 

[homesick]

... In some cases the electronics are not doing you any favors at all

That's no joke. There's way too much Nanny built into cars.

I want to control my own headlights, my own wipers, my own a/c controls, etc. And this is the small-time stuff. Now we can add auto braking and auto forward space cushion.

They've even automated the crashes.

joe