2021 Sollitude factory disc brakes not working with 2020 Silverado 3500HD

[DriverDon]

I'll be installing it in the next couple of days. New 5er and can't get on the road. Take care and thanks

Good luck! That was exactly our scenario, couldn't use our new 5er investment, what to do? Hopefully it will work for you!

[Colorocko]

That hydrostar HBA – cam fixed my breaker issue that I had on my new trailer thank you so much for the information I'm passing this information on to the service manager around our location. Thanks again

[Grammy&Grandad]

As a result of this discussion, I asked my dealer’s parts specialist to contact GD to determine the build on my ordered 380FL (new 8k axle with disc brake option) before it arrived, so that I did not run into issues when I took delivery. GD affirmed compatibility issue expected with my 2014 Silverado 3500 factory controller and suggested the Hydrastar actuator adapter, even for the Dexter Actuator. Dealer installed pre-delivery and all is well. Thanks, everyone! On the road 4 days now. Brakes responding perfectly.

[Zephyr2020]

Anyone come up with a reliable solution for this? Have a 21 377mbs Solitude w/ Dexter EOH that on last trip connected to a 14 Chevy 3500 brakes did not respond. Now looking at a 21 Chevy 3500 for a T/V and would like to know if anything has been resolved. Thanks

[Grammy&Grandad]

Anyone come up with a reliable solution for this? Have a 21 377mbs Solitude w/ Dexter EOH that on last trip connected to a 14 Chevy 3500 brakes did not respond. Now looking at a 21 Chevy 3500 for a T/V and would like to know if anything has been resolved. Thanks

I have same brake setup. I pull with a 2014 Silverado 3500 with factory brake controller. Had my dealer install a Hydrastar adapter on the Solitude - no worries!

https://www.trailerandtruckparts.com...xoCU3kQAvD_BwE

[Zephyr2020]

So just wanted to update the 2021 model year GM ITBC works with the EOH system and does not throw the Service trailer brake message. I realize that this thread focus is on the older model year trucks, but it appears the system has been properly updated.

[DriverDon]

So just wanted to update the 2021 model year GM ITBC works with the EOH system and does not throw the Service trailer brake message. I realize that this thread focus is on the older model year trucks, but it appears the system has been properly updated.

That's good to know! I wonder if they've got a code update for the 2020. I'd prefer to not have to use the Hydrastar adapter.

[Zephyr2020]

That's good to know! I wonder if they've got a code update for the 2020. I'd prefer to not have to use the Hydrastar adapter.

I was in the same boat, hoping I didn't need it. Hopefully they can update the older trucks info to utilize the system thats in place.

[Husker]

FWIW, I have the factory disc brakes that came with the Hydrastar EOH system. I have a 2020 Duramax Silverado and I use the factory brake actuator without any adapters. I do not have any problems with braking or with the system "seeing" the Hydrastar. I did a lot of research on this and was told that the 2020 models should not have a problem with the Hydrastar and so far they are correct.