maintenance NISSAN XTERRA 2012 N50 / 2.G Towing Guide
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 2012 NISSAN Towing Guide    7 Like ball mounts, hitch balls are available in a number of weight capacities and sizes. Always 
make sure the hitch ball selected has the proper shank diameter and weight rating for the ball 
mount as well as the coupler on your trailer. Using a 1
7/8” hitch ball in a 2” coupler, for example, 
could result in the trailer separating from the tow vehicle.  
  The diameter of the hitch ball shank must be matched to the ball mount hole diameter. The 
shank should be no more than 
1/16” smaller than the hole. 
  To keep the hitch ball in top condition, a simple maintenance routine is recommended. 
Coating it with light grease will minimize wear of both the coupler and hitch ball. Also, by 
removing the hitch ball when not towing, or by protecting it with a special cover, you will help 
prevent rust from forming on it. 
 
TRAILER TONGUE 
The tongue is the part of the trailer that extends forward to meet the tow vehicle, and it also 
carries the coupler assembly.  Knowledge of the trailer minimum and maximum tongue load 
(conventional trailers) and king pin load (5th wheel and gooseneck trailers) is critical as it can 
have a significant effect on the handling of the tow vehicle. Refer to your vehicle owner’s 
manual to view the maximum conventional trailer tongue load listed for your vehicle, and 
always maintain between 10-15% of the trailer weight or within the total trailer load 
specification recommended by the trailer manufacturer. 
 
SAFETY CHAINS/CABLES 
Always use suitable safety chains/cables 
between the tow vehicle and the trailer. If 
the hitch should break or become 
disengaged for some reason, these 
chains/cables will provide an emergency 
connection between the vehicle and the 
trailer. 
  The chains/cables should be crossed 
under the trailer tongue and attached to the 
hitch or vehicle frame. Crossing the 
chains/cables under the tongue will help 
prevent the tongue from hitting the ground 
should the trailer become disconnected.  
Be sure to leave enough slack in the 
chains/cables to turn corners without 
binding; however, note that excessive slack  
Not OK
OK
  
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 2012 NISSAN Towing Guide    10 NOTE – Improper or poor quality trailer harness wiring may affect your vehicle’s electrical 
system. Use only a NISSAN approved wiring harness, or consult your dealer or a professional 
supplier of towing equipment for compatible equipment.  
 
SWAY CONTROL DEVICE 
Sudden maneuvers, wind gusts, and buffeting caused by other vehicles can affect trailer 
handling. Sway control devices may be used to help control these effects. If you choose to 
use one, contact a reputable trailer hitch supplier to make sure the sway control device will 
work with the vehicle, hitch, trailer and the trailer’s brake system. Follow the instructions 
provided by the manufacturer for installing and using the sway control device. 
 
GENUINE NISSAN PARTS AND ACCESSORIES 
Whether you will be towing occasionally or on a regular basis, NISSAN offers a full range of 
Genuine NISSAN Parts and Accessories to help you tow with confidence.  
  Every accessory is thoroughly tested and inspected for fit and workmanship. Therefore, you  
can be certain that every item is designed to be compatible with the standard features of your 
vehicle and designed to assist you with your towing needs.  
  Contact your NISSAN dealer for more information on accessories or towing-related parts 
for your NISSAN vehicle. 
 
 
PREPARING  
YOUR VEHICLE 
 
BREAK-IN AND MAINTENANCE SCHEDULE 
NISSAN recommends that you allow a sufficient “break-in” (500 miles) of both the engine and 
drivetrain before towing with your new NISSAN vehicle. In addition, for the first 500 miles that 
you tow a trailer, do not drive over 50 mph and do not make starts at full throttle.  
  Keep in mind, too, that towing places higher demands and added loads on vehicle 
components, so more frequent maintenance is called for. Your NISSAN Service & 
Maintenance Guide provides the accelerated maintenance schedule for towing purposes. 
Engine oil, filter, transmission oil, and possibly other fluids should be changed more frequently 
when towing. 
  
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 2012 NISSAN Towing Guide    15
TOWING  
SAFETY 
 
Towing can significantly alter the handling and performance characteristics of your vehicle. 
Plus, it puts increased strain on the engine and drivetrain. Therefore, it is always a good idea 
to approach towing from the standpoint of safety — whether you are purchasing equipment or 
actually pulling the trailer.  
Always make sure your vehicle’s towing capacity is adequate for the trailer you intend to 
tow. Buy or lease only quality equipment. In addition, be certain that you have all of the 
equipment needed for safe towing, such as safety chains/cables, electric trailer brakes, 
electric trailer brake controller, breakaway switch, and extended rear view mirrors.  
  You should follow a more frequent maintenance schedule and check fluid levels, pressures, 
tire condition, etc., more often when on the road. See your vehicle owner’s manual for details. 
 
LOADING YOUR TRAILER 
Taking the time to load and balance your trailer properly will improve overall handling and 
minimize the strain on your tow vehicle. Incorrectly loaded trailers tend to sway or swing from 
side to side, upsetting vehicle handling. Careful loading and balancing can help eliminate 
these problems. 
  As mentioned earlier, conventional trailer tongue load must fall between 10-15% of the 
total trailer weight, or within the limits of the maximum trailer tongue load specified by the 
trailer manufacturer. King pin load — if using a 5th wheel or gooseneck trailer — must be 
between 15-25% of the total trailer weight.  
Excessive tongue/king pin load can actually 
push down the vehicle in back, lifting the front 
wheels to a point where traction, steering 
response, and braking are severely reduced. 
Insufficient tongue/king pin load can cause 
instability, which may lead to “tail wagging” or 
jackknifing. 
With this in mind, proper loading is extremely 
important. When loading a trailer, 60% of the  
total cargo weight should be positioned in the  
front portion of the trailer and 40% in the back. Then, the load should be adjusted until the 
proper tongue/king pin load ratio is achieved. 
 
   
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 2012 NISSAN Towing Guide    16 The trailer load should be balanced equally from 
side-to-side. Unequal side-to-side loading can 
negatively affect handling and braking. Once in 
place, all cargo should be firmly secured to 
prevent shifting. If the load should shift abruptly 
during braking or cornering, it could quickly affect 
the handling of your vehicle and cause a very 
unsafe situation.  
  Finally, do not carry flammable materials, such 
as gasoline, in your trailer. In the event of an accident, an explosion or fire could occur. 
 
ENSURING VEHICLE/TRAILER STABILITY 
Improper loading, excessive or insufficient trailer tongue/king pin load, overloading, excessive 
trailer weight, poorly designed trailer suspensions, crosswinds, and poor maintenance are all 
things that can affect the stability of your vehicle and trailer combination.  
If swaying does occur, check the cargo load for proper balance and distribution to ensure 
proper trailer tongue/king pin load. In addition, check the condition of the suspension and 
shocks, as well as the tires, tire pressures, and wheel bearings on both the tow vehicle and 
the trailer.  
  If the swaying continues and your trailer is suitably balanced and within the towing capacity 
limits of your vehicle, discontinue towing and consult your NISSAN dealer or trailer 
manufacturer to determine the problem.  
 
VEHICLE SPEED 
Please note that some states have specific regulations and speed limits for vehicles that are 
towing trailers.  Remember to reduce your speed in unsafe or less-than-ideal road conditions 
or weather. When towing a trailer, braking distances increase while handling agility decreases. 
Always leave yourself an extra margin of distance to respond to emergency situations. 
 
PASSENGERS 
Never allow passengers to ride inside a trailer while it is being towed. Not only is this 
unlawful in most areas, passengers could be seriously injured during sudden trailer movement 
or in an accident. In addition, trailers may allow fumes from the tow vehicle to leak inside. This 
could result in carbon monoxide poisoning from the engine exhaust.