2020 INFINITI Towing Guide
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A breakaway switch may be used with both electric or surge trailer brake
systems.
BUMPER HITCH A reinforced bumper designed to accommodate a hitch ball.
ELECTRIC TRAILER BR AKES When the brakes on a tow vehicle are applied, an electric current is sent to
an actuator which applies the trailer’s brakes.
ELECTRIC TRAILER BRAKE CONTROLLER A device that controls the electric trailer brakes.
GROSS AXLE WEIGHT RATING (GAWR)
The maximum amount of weight each vehicle axle (front and rear) is
designed to safely carry.
GROSS COMBINED WEIGHT RATING (GCWR)
The maximum allowable combined weight of the vehicle and trailer,
including passengers and all cargo.
GROSS VEHICLE WEIGHT RATING (GVWR)
The maximum allowable weight of the vehicle, including passengers, cargo,
fuel, hitch, trailer tongue load, and any optional equipment.
HITCH BALL A ball that connects the trailer to the tow vehicle hitch that provides the
means by which the trailer pivots during cornering. Available in a number of
sizes and weight capacities, it must correspond to the trailer coupler size, and
have a sufficient capacity rating for the trailer being pulled.
RECEIVER HITCH A frame- or structure-mounted hitch with a receiver that allows removal of the
ball mount.
SAFETY CHAI NS/CABLES Provides an emergency connection between the tow vehicle and the trailer,
should the trailer become disengaged for any reason.
SURGE BRAKES Hydraulic-type braking system activated by inertia. As the tow vehicle begins
to brake, the trailer pushes against the hitch ball, consequently activating the
trailer brakes.
TRAILER TONGUE/COUPLER The part of the trailer that extends forward to meet the tow vehicle, and
carries the coupler assembly.
TRAILER TONGUE LOAD The amount of trailer weight pressing down on the hitch.
WEIGHT-DISTRIBUTING HITCH SYSTEM Type of hitch system that helps shift the trailer tongue weight to all trailer tires
and the tow vehicle front tires. Strongly recommended when towing trailers
with a Maximum Trailer Weight greater than 5,000 lbs.
WI RI NG HARNESS Provides an electrical connection linking the tow vehicle’s electrical system to
the trailer’s system.
