Supplemental Braking System for Flat Towing 2018 GMC Canyon Recommendation

Question:

Considering buying a Chevrolet Colorado or GMC Canyon to flat tow behind my motor home. Since the MH is diesel powered I was considering purchasing it with the 4 cylinder duramax engine. The question is will the Battery disconnect switch RM-766 work with the this configuration? My tentative plan is to use it with an invisiBrake system. Any other thoughts appreciated. Thanks

asked by: Fred

Helpful Expert Reply:

Since the diesel engine version of your 2018 GMC Canyon has dual batteries the battery disconnect part # RM-766 that you referenced cannot be used. Reason being this kit can only disconnect a single battery.

If you are considering a permanent install supplemental braking system I'd recommend the SMI DUO part # SM99251 over the Invisibrake because this is a proportional system that senses the amount of braking that the tow vehicle is applying (Invisibrake puts out a preset amount of braking every time), and because it's easier to install. I attached an install video for this kit on a similar 2015 Colorado for you to check out as well.

expert reply by: Jameson C