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Audible signal alert for connection continuity for safe braking. Exclusive G2 Brake Boss feature.
Large, high-resolution diagnostic liquid crystal display panel, shielded from glare. Exclusive G2 Brake Boss feature.
Quick-Connect mated OEM harness makes installation a snap.
Easy to adjust gain control for smooth stopping. Power boost memory feature. Adjustable in % of power, voltage and current.
Easy-to-find, easy-to-use manual activation lever for full power in emergency stopping situations.
G2 Brake Boss - Part Number 81792BB - Price: $124.95 - Call to Order or select

Comparing the G2 with the competition

G2 Brake Boss™
Southwest Wheel's Price
Audible Signal Alert
LCD Display
yes - no glare
No Drilling Mount
Boost Feature
Electric/Hydraulic Compatible
Direct Plug-in
Manual Stoplight Activation
Panic Stop Capability
Short Circuit Protection
Made in the U.S.A.
Made "Green"

What Is G2 Brake Boss?

Elegence, meet extreme brake controlling! The sleek, new G2 Brake Boss is not only stylish and smart, it provides safer braking with the market's ONLY audible alert signal! G2 Brake Boss represents the latest technology in tri-axis, accelerometer trailer brake controllers. “Tri-axis” means that the G2 Brake Boss measures the rate of deceleration or gravitational pull created by braking of the tow vehicle in three different planes – front to rear, left to right and up/down planes. This is a truly proportional control, delivering pre-set power to the trailer brakes depending upon your individual axle, load or braking requirements. The G2 Brake Boss is self-leveling and requires no level adjustment. All power feature settings are done using the three easy touch buttons to the right of the display panel; “Up”, “Menu” or “Down”. These adjustment buttons allow for a variety of settings.

Once mounting and wiring installation of the G2 Brake Boss has been completed and power is supplied to the controller, the LCD screen illuminates to show that you have or do not have a trailer connection. Touching any one of the three selection buttons brings you to the “Set Up” screen where you can do an initial set up of all controller features or scan directly to the preferred selection as shown. After the initial set up, the G2 Brake Boss will retain all initially programmed settings until these are individually changed.

“Brake Type” allows you to choose between electric or electric over hydraulic trailer braking systems on the trailer being towed. G2 Brake Boss is designed to accommodate conventional electric brakes or hydraulic drum or disc trailer brake systems, more and more of which are appearing on higher end travel trailers and 5th wheel, stock/ag, utility and commercial trailers.

“Boost Mode” which increases brake controller gain setting automatically depending upon your preferred braking power requirements. “P1” increasing power by 5%; P2” increasing power by 10%; “P3” increasing power by 15% and “P4” increasing power by 20%. The boost feature provides for your previous “P” level to be retained in memory. Boost provides for easy controller power adjustment based upon towing a heavily loaded trailer or unloaded trailer, or provides for your particular desired power response when braking.

“Alarm Mode” allows you to engage the G2 Brake Boss’s new and exclusive “audible alarm tone” which will signal you to any problems or interruption in the trailer braking system. This audible alarm is available only on the Hayes G2 Brake Boss, insuring added warning in the event of any trailer braking related fault.

“Diagnostics” gives you the option of determining either your Battery Voltage, Stoplight Voltage, Output Voltage or Output Amperage.

The G2 Brake Boss’s wide, high resolution LCD display panel indicates all setting features and by selecting the
“Display” screen, settings for color, intensity and contrast may be made for your individual choice.

In the event of any trailer braking malfunction occurring, the “Audible” tone will signal a problem and the LCD screen will display a “Warning” to indicate Open Ground, Overload, Output Short or Loss of Power. (The audible setting may be deactivated if not desired).

The G2 Brake Boss is designed to handle all towable and 5th wheel trailers from single to quad braking axles.

It comes with a Limited Lifetime Warranty.

The G2 Brake Boss also incorporates an all new manual activation lever which pulls from rear to front of the controller making for easy, four fingertip engagement in any emergency braking situation. This is a unique design available only in the Hayes G2 Brake Boss, eliminating the “pincher” motion required in other brake controller model varieties.

As with all Hayes models, the New G2 Brake Boss is equipped with a connector for use in quick and easy brake controller installation by using any one of our Quik Connect dual-mated wiring harnesses. These OEM-to-HBC harnesses suit the majority of current and past model tow vehicle applications; GM, Ford, Dodge, Toyota, Nissan and Honda.

And the New G2 Brake Boss model 81792BB Kit comes complete with the all new Hayes Quik Receiver Sleeve, designed to suit the G2 and ALL Hayes brake controller models. Model 81793 incorporates a VHB (Very High Bonding) adhesive which mounts directly and securely to the tow vehicle dash requiring no hardware, screws (or screw holes in the dash). No tools needed for quick, easy, labor and time saving controller installation.

Hayes has been a brand leader in brake controller technology since our introduction of the first brake control in 1947. For sixty years they have been building on that tradition of quality, performance and innovation to provide you and your customer with the safest trailer braking possible.   

The Quik Connect dual-mated harness line and Quik Receiver Sleeve provide the installer with the opportunity to reduce labor cost and time, eliminate potential warranty caused by improper hardwire installation and provide the customer with the highest degree of safe, proportional trailer braking. Easy to install, easy to set and adjust, easy to use.


Official G2 Brake Boss Wiring Harness Fitment Update

#81780-HBC - Chevrolet / GMC (2006-2003)
Brake Control Wiring Adaptor for Pre-Wired:
2007 - Current (Use 81789-HBC Hayes Universal)
2006 - 2003 Chevrolet Silverado
2006 - 2003 GMC Sierra
2006 - 2003 Chevrolet / GMC Tahoe, Yukon
2006 - 2003 Chevrolet Suburban
2006 - 2003 Yukon XL

#81781-HBC - Chevrolet / GMC (2002 -1999)
Brake Control Wiring Adapter for Pre-Wired:
2002 Cadillac Escalade & Escalade EXT
2002 - 1999 Chevrolet Silverado & GMC Sierra Full Size Pickups
2002 - Chevy Avalanche
2002 - 2000 Chevy Suburban & Tahoe
2002 - 2000 GMC Yukon & Yukon XL
2002 - 2001 GMC Yukon Denali & XL(New Body Style)

#81782-HBC - Dodge / Chrysler (2009-1996)
Brake Control Wiring Adapter for Pre-Wired:
2009 - 1996 Dodge Ram Pickups (All Models)
2005 - 1997 Dodge Dakota Pickups w/tow package
2009 - 1998 Dodge Durango w/tow package

#81783-HBC - Ford / Mercury (2009 -1994)
Ford 6 Pin Connector Applications:
2008- 1994 Ford Full Size Pickups/ F150  (see 81788-HBC for 2011)
2008 -1994 Ford Full Size Vans/ E150       (see 81788-HBC for 2011)
2008 -1997 Ford Expedition
2008 -1995 Ford Windstar
1996 -1994 Ford Bronco
2008 -2000 Ford Excursion

#81784-HBC - Ford Super Duty (2006-2005)
Brake Control Wiring Adapter for Pre-Wired:
2006  - 2005  Ford F-250/F-350 Super Duty Pickups

#81785-HBC - Toyota (2010-2002)
Brake Control Wiring Adapter for Pre-Wired:
2011 - 2004 Toyota 4Runner
2011 - 2004 Toyota Sequoia
2011 - 2004 Toyota Tundra
2005 - 2004 Lexus GX470

#81786-HBC - Nissan (2010-2005)
Brake Control Wiring Adapter for Pre-Wired:
2011 - 2004 Nissan Titan
2011 - 2005 Nissan Pathfinder Armada
2011 - 2004 Nissan Pathfinder
2011 - 2004 Nissan Frontier Pickup

#81787-HBC - Honda (2010-2005)
Brake Control Wiring Adapter for Pre-Wired:
2011 - 2005  Honda Ridgeline  

#81788-HBC - Ford Super Duty (2010 - 2007)
Brake Control Wiring Adapter for Pre-Wired:
2009 -2007  Ford F-250/F-350 Super Duty Pickups

#81794-HBC - Ford F150 (2009-2010)
2009-2011 – Ford F150/E150

#81795-HBC - Dodge Ram 1500
2010-2011 - Dodge Ram 1500

#81789-HBC - Hayes Universal
This universal wiring harness is for the use with any
OEM tow vehicles not compatible with our current
selection of "quik- connect" dual-mated wiring harnesses.
The connector mates to any Hayes Brake Electronic
Controller while the four wires need to match with your
specific OEM tow vehicle. Refer to the brake controller
wiring instructions for specific wiring for your tow vehicle.



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