Wiring Instructions For The Roadmaster Invisibrake For A 2023 Chevy Silverado 1500

Updated 07/03/2023 | Published 07/01/2023

Products Featured in This Question

Roadmaster InvisiBrake Flat Tow Brake System - Preset

(286)

$1380.00

Roadmaster Battery Disconnect for Towed Vehicle w/ Flat Tow Brake System - Gas Only

(385)

$223.05

Question:

Roadmaster Invisibrake hookup complete. First test run parking lot. Everything on the Roadmaster seems to be working OK. Lights, Brakes, etc.. Problem is on the TOAD side. 2023 Chevy Silverado 1500 - the Electronic Parking Brake keeps re-engaging. I am following the owners manual instructions TO A TEE. The owners manual says this is why you disconnect the negative battery terminal, which I am doing. I plan to visit my Chevy dealer tomorrow and hope they can tell me whats up. Is it possible the black wire from the invisibrake is somehow completing the circuit and when Chevy says disconnect the battery I have to have NOTHING on the negative side, and therefore, need to ground the IB to the chassis?

asked by: Michael J

Expert Reply:

You'll need to disconnect the cable from the positive terminal on the battery and only connect the Invisibrake # RM-8700 to it and can leave the negative cable attached to the negative terminal on the battery along with the Invisibrake. This will eliminate power to vehicle so you'll want to go through the steps to switch to neutral before disconnecting the battery. What's happening right now is that you're vehicle is trying to find a ground through the Invisibrake since you still have the positive cable attached to the battery.

If you don't want to have to physically remove the positive cable every time you want to flat tow you can also install the Roadmaster Battery Disconnect with Switch for Towed Vehicle w/ Flat Tow Brake System - Gas # RM-766.

expert reply by: Kevin C