[cdb95z28]

Originally Posted by DaveC113

The more you deviate from OEM in terms of tire grip, size, differences in brake pads front to rear, the more wheel speeds side to side and/or front to back will deviate from what the EBCM expects to see and the more likely you are to see ice mode.

This is the most important point when it comes to ice mode.

I don't get why guys who are complaining won't change back to a less aggressive pad or keep the tire diameter within a reasonable delta. Also, there should be no need for mismatched set of pads on these cars.

[Baddawg53]

Originally Posted by GunMetalGrey

Just realized I (and others in my situation) have one more option to get rid of Ice Mode... I have an updated 2019 ZL1 EMCB ABS Brake Module but not one from a ZL1 1LE (because I haven't been able to find one yet) so I'll keep looking...

I found one on eBay, should have it next week. I ordered a wrong one by mistake for an SS 1LE car so that'll be going up for sale soon.

I don't have high hopes for it, but maybe it'll be an improvement.

[Baddawg53]

Originally Posted by cdb95z28

This is the most important point when it comes to ice mode.

I don't get why guys who are complaining won't change back to a less aggressive pad or keep the tire diameter within a reasonable delta. Also, there should be no need for mismatched set of pads on these cars.

Could be because .... Well maybe guys just like the benefits of the mods they made and are trying to make them work rather than just conceding defeat to some street oriented programming inside the EBCM.

[GunMetalGrey]

Originally Posted by Baddawg53

I found one on eBay, should have it next week. I ordered a wrong one by mistake for an SS 1LE car so that'll be going up for sale soon.

I don't have high hopes for it, but maybe it'll be an improvement.

Is there a reason you don't have high hopes for it?

I think as long as it "latches" to your vehicle you should have high hopes for it, since it is my understanding that no one with a ZLE has this problem and since this is the "brains" of the braking, it should go to the root of the problem

[GunMetalGrey]

Originally Posted by cdb95z28

This is the most important point when it comes to ice mode.

I don't get why guys who are complaining won't change back to a less aggressive pad or keep the tire diameter within a reasonable delta. Also, there should be no need for mismatched set of pads on these cars.

Is it though? Then why do stock OEM cars still have this problem?

I keep reading that no ZLE's have ever reported this (maybe that's not true) despite the changes they have made to their cars...

Don't get me wrong, having mismatched anything seems like a recipe for trouble (different tire diameters front and back and different friction brake pads front and back) seems crazy to me

[Baddawg53]

Originally Posted by GunMetalGrey

Is there a reason you don't have high hopes for it?

I think as long as it "latches" to your vehicle you should have high hopes for it, since it is my understanding that no one with a ZLE has this problem and since this is the "brains" of the braking, it should go to the root of the problem

It's because, and I could be mistaken, I think I've read some posts where it hasn't completely fixed the issue. I feel like I've read some posts where MY 2019+ cars have experienced ice mode too. If the ZLE is the one car that doesn't, and that computer won't work in my car, then I think the best I can hope for with the ebcu swap is an improvement, not a cure.

[GunMetalGrey]

Originally Posted by Baddawg53

It's because, and I could be mistaken, I think I've read some posts where it hasn't completely fixed the issue. I feel like I've read some posts where MY 2019+ cars have experienced ice mode too. If the ZLE is the one car that doesn't, and that computer won't work in my car, then I think the best I can hope for with the ebcu swap is an improvement, not a cure.

I see, yeah I haven't seen or read anyone saying the ZLE braking module did not latch onto their car, I've already put a ZLE traction control module into my car and it worked when it came form an A10 like my car, but not when it came from an M6

I did not noticed an improvement using the 2019 ZL1 ABS braking module vs my 2018

[Baddawg53]

Originally Posted by GunMetalGrey

I see, yeah I haven't seen or read anyone saying the ZLE braking module did not latch onto their car, I've already put a ZLE traction control module into my car and it worked when it came form an A10 like my car, but not when it came from an M6

I did not noticed an improvement using the 2019 ZL1 ABS braking module vs my 2018

Well now you got me all twisted around.

Are you saying the ZLE module is compatible with every other model car? Like my 17 non 1le SS? I definitely did not understand it that way. I have a module from a 2020 non 1le 2SS on order because I thought it needed the same options.

[DaveC113]

I don't think that ZLE module will work on a ZL1. It could really f things up and require a dealer to reset the electronics. But AFAIK, nobody has tried it yet, so...

[GunMetalGrey]

Originally Posted by Baddawg53

Well now you got me all twisted around.

Are you saying the ZLE module is compatible with every other model car? Like my 17 non 1le SS? I definitely did not understand it that way. I have a module from a 2020 non 1le 2SS on order because I thought it needed the same options.

The cars do have to have the same options but they don’t have to be the same model. I used the traction control module from a ZL 11LE, but it came from an automatic because the first one I tried from a manual did not work because I have an auto. Make sense?

I am not the first one to do this when it comes to the traction control module, it was not my idea, others before me have done it.

And let me tell you it made a big difference compared to my stock OEM ZL1 traction control module! A lot more wheel spin allowed!

Is the part you ordered used or new ? New parts don’t come with any programming, they require a VIN and in that case the only VIN a dealership can use is your own, that’s why it needs to be used and come from a donor car that is the right model with the right options

[GunMetalGrey]

Originally Posted by DaveC113

I don't think that ZLE module will work on a ZL1. It could really f things up and require a dealer to reset the electronics. But AFAIK, nobody has tried it yet, so...

I doubt it, at least that was not the case for me at all, and the person who told me about it had no problems are either.

As I mentioned before, the first traction control module I used immediately had error messages pop up because it was from a manual transmission car, but as soon as I put one from an automatic transmission car, there were no error messages.

[DaveC113]

Originally Posted by GunMetalGrey

I doubt it, at least that was not the case for me at all, and the person who told me about it had no problems are either.

As I mentioned before, the first traction control module I used immediately had error messages pop up because it was from a manual transmission car, but as soon as I put one from an automatic transmission car, there were no error messages.

Ok, the biggest issue I can see is Magride, but let us know if it works for you.

[GunMetalGrey]

Originally Posted by DaveC113

Ok, the biggest issue I can see is Magride, but let us know if it works for you.

You bet will do, just have to find one from an auto first, that’s been the hardest part and the reason why I haven’t done it yet

[cdb95z28]

Originally Posted by GunMetalGrey

Is it though? Then why do stock OEM cars still have this problem?

I keep reading that no ZLE's have ever reported this (maybe that's not true) despite the changes they have made to their cars...

Don't get me wrong, having mismatched anything seems like a recipe for trouble (different tire diameters front and back and different friction brake pads front and back) seems crazy to me

OEM cars have this problem? On OE tires and OE pads? I think that scenario is very rare. If so, then the WOT and a very quick transition to heavy braking is the trigger? I think driver technique can be a trigger too. Aggressive initial brake application? Track surface grip/rough or smooth? Ambients? Even chassis setup can change how the tires are loaded? There are many variables.

The ZLE's have the massive grip of the 3Rs. Their construction may be more suited to help absorb the shock of aggressive pads/technique. And their ABS cal is programmed for those tires.

My one experience of ice mode, on a road course: I always ran ST43s and 3Rs on my Gen5 SS 1LE. No ice mode.
Swapped on a set of Cup2s and experienced ice mode. I softened my application and had no more issues. Spoke to a GM chassis (Gen6/C8) integration engineer that day, he was confident it was the tire choice. It was only a tire swap, it was obvious that change to the Cup2s did not suit my pad choice along with my technique. EDIT: I'd like to add that the OE Gen5 SS 1LE ABS cal also played a part here. Not only did I swap to bigger front brakes, but I had aggressive pads with a very different tire. The ABS cal was not suited to all the changes.

I'm not discounting wanting to mod our cars, I am running Ferodo DS 1.11s on my '22 BCD equipped SS 1LE. Swapping the different ABS module is a natural evolution to attempt a fix. But don't most scenarios with persistent ice mode involve very aggressive brake pads?

Gun Metal, I saw your statements and for sale threads concerning selling everything and stop tracking your car because of this. Why not go back to basics?? Those pads might not be a part of the right combo for you. All of this notwithstanding a hardware problem, for example a wheel speed sensor.

Are we treating the problem, or the symptom?