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 2015 NISSAN Towing Guide    20
economy and transmission/engine driving characteristics. See your vehicle owner’s manual for 
additional information about Tow Mode.  
 
HILLS – UPGRADES 
As the incline increases, if your vehicle is equipped with an automatic transmission — it is 
designed to select automatically the correct gear for the best towing comfort and 
performance. To maintain speed or avoid up and down shifts, manually shift to a lower gear as 
needed.  
 
The added weight of a trailer places an increased load on the engine and cooling system, so 
monitor your coolant temperature gauge and automatic transmission fluid temperature gauge 
(if equipped) carefully. At the first sign of overheating, pull to the side of the road. See IF 
YOUR ENGINE OVERHEATS later in this section for more information. 
 
HILLS – DOWNGRADES 
 WARNING - While going downhill, the weight of the trailer pushing on the tow vehicle 
may decrease overall stability, and may deteriorate overall handling characteristics, which 
could result in an accident, property damage, or serious injury. Therefore, to maintain 
adequate control, reduce your speed and shift to a lower gear. If your vehicle is equipped with 
Tow Mode, see your vehicle owner’s manual for information about the use of this function. 
Avoid long or repeated use of the brakes when descending a hill, as this reduces their 
effectiveness, and could cause overheating. Shifting to a lower gear instead provides “engine 
braking” and reduces the need to brake as frequently. 
 
AUTOMATIC CRUISE CONTROL 
 WARNING – In order to maintain a safe distance to the vehicle ahead to avoid the 
possibility of accidents, property damage or serious injury, never use the Intelligent Cruise 
control (ICC) system while towing a trailer or other vehicle.  If the ICC sensor cannot detect 
the reflector on the vehicle ahead, the system may not function properly. 
 
IF YOUR ENGINE OVERHEATS 
“A moderate increase in engine operating temperature is normal when towing a trailer.” If, 
however, the coolant temperature gauge reading is abnormally high, if you are experiencing a 
significant loss of power, or if you hear unusual engine noises,* the engine may be overheating 
and you should immediately take the following steps: 
 
1.  Pull your vehicle safely over to the side of the road, out of traffic. Apply the parking brake 
and move the gearshift lever to NEUTRAL (manual) or PARK (automatic). DO NOT STOP 
THE ENGINE. 
  
     
        
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 2015 NISSAN Towing Guide    22 1  Maximum Trailer Weight values are calculated assuming a base vehicle with driver and any 
options required to achieve the rating. Additional passengers, cargo and/or additional 
optional equipment will add weight to the vehicle and reduce your vehicle’s maximum 
towing capacity and trailer tongue load. 
 
2  Use of a weight-distributing hitch system is re when towing over 5,000 lbs. 
 
3  The Maximum Trailer Weight and Gross Combined Weight ratings for 5th wheel and 
gooseneck trailer towing are the same as specified for conventional trailer towing. 
 
4 Most states require a separate braking system on trailers with a loaded weight above a 
specific amount. Check local regulations where you plan to tow. 7-pin connector trailer 
wire harnesses are required for use with trailer brakes (available separately). 
 
Other Recommendations and Information – Towing performance and speed are affected by 
vehicle payload, tow weight, road grades, and weather conditions, including high 
temperatures. See your vehicle owner’s manual for details.   
 
 
 
TOWING  
GLOSSARY 
5TH WHEEL 
HITCH Located just forward of the rear axle centerline, this hitch uses a king pin to 
serve as the pivot point for the trailer. 
 
BALL MOUNT A bar that holds the hitch ball and is inserted into the hitch receiver. Also 
commonly called a drawbar. 
 
BREAKAWAY SWITCH A safety device using a trailer battery that automatically applies the trailer’s 
brakes if the trailer accidentally becomes separated from the tow vehicle. 
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 
BRAKES 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. 
 
GOOSENECK HITCH Located just forward of the rear axle centerline, this hitch uses a ball to serve 
as the pivot point for the trailer. 
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. 
KING PIN 
LOAD The amount of trailer (5th wheel or gooseneck) weight pressing down on the 
tow vehicle hitch.  
     
        
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 2015 NISSAN Towing Guide    23
 
 
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 CHAINS/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 (conventional) weight pressing down on the tow 
vehicle 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. 
 
WIRING HARNESS  Provides an electrical connection linking the tow vehicle’s electrical system 
to the trailer’s system.