Brake Controller Does Not Work with Brake Pedal on a 2007 GMC Yukon XL

Question:

I have a 2007 Yukon XL, I just installed the Hopkins Agility Brake Controller. However the brakes do not engage with the brake pedal but will when the manual override button is engaged. Any suggestions?

asked by: Jake

Expert Reply:

The likely issue is that a fuse is missing or there are additional connections that need to be made under the hood of your 2007 GMC Yukon XL. This is common for GM trucks and SUVs and it is easy to get everything working. I have included a link to a help article that explains the connections under the hood. The owners manual will show the the specific location of the brake controller fuse.

The help article also covers the tow package wiring colors and functions on the vehicle. Make sure that the red brake controller wire is attached to the light blue/white wire on the tow package wiring. You will also need to make sure that the stop light or CHMSL fuses are not blown.

expert reply by: Michael H