tire size INFINITI QX80 2017 Towing Guide
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 2017 INFINITI Towing Guide   
 
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SAFETY IS PRIORITY ONE 
Obviously, your first concern should be safety. Your vehicle was designed to be used primarily to 
carry passengers and cargo. Always remember that towing a trailer places additional loads on your 
vehicle’s engine, drivetrain, suspension, steering, braking, and other systems. Therefore, be certain 
that your vehicle can meet the demands of the towing application you have in mind. 
 
Rent or purchase only the highest-quality towing and safety equipment you can find. Reinforced tow 
hitches designed especially for certain INFINITI vehicles are available from your INFINITI retailer. 
Hitches for other INFINITI models — if INFINITI recommends towing with that vehicle — should be 
bought from and installed by a professional supplier of towing equipment.  Carefully review all 
information and literature provided with any hitch you purchase for safety and proper use 
information. Finally, it is important to follow the towing capacity limit set for your specific vehicle 
and to ensure that your vehicle is in top mechanical condition, especially the tires, brakes, 
suspension, and engine cooling system. See your vehicle owner’s manual for details. 
 
NEVER EXCEED THE ESTABLISHED TOWING CAPACITY 
Towing capacities vary from vehicle to vehicle. See the towing information in your vehicle owner’s 
manual to confirm whether your 2017 INFINITI vehicle can be used for towing and if so it’s towing 
capacity .  
 
EQUIP YOUR INFINITI FOR TOWING 
The frequency and type of towing dictate the manner in which you equip your vehicle. If you plan to 
tow often, either for recreation or work, select the engine size, transmission type, suspension, and 
towing capacity that are best suited to your requirements. This guide can help you select the proper 
equipment.  
 
 READ THIS GUIDE BEFORE YOU TOW 
This guide was designed to provide an overview of safe towing practices. Here, you will find 
information on towing equipment, safety, proper loading and driving techniques, towing tips, and 
much more. 
 
It is also a good idea to discuss your towing requirements with either your INFINITI retailer or a 
professional supplier of towing equipment before you equip your INFINITI vehicle for towing. 
Finally, there are state and local laws on towing that you should review to ensure compliance with 
all regulations. 
 
  CAUTION: INFINITI recommends you do not use your new vehicle to tow a trailer or haul a heavy 
load for the first 500 miles (800 km) of use.  Your engine, axle or other parts could be damaged.  
For the first 500 miles that you tow a trailer, do not drive over 50 mph and do not make starts at 
full throttle. This helps your engine and other parts of your vehicle wear in at heavier loads. 
 
INTRODUCTION  
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PREPARING YOUR VEHICLE 
 
BREAK-IN AND MAINTENANCE SCHEDULE 
 CAUTION- INFINITI recommends that you allow a sufficient “break-in” (500 miles) of both the 
engine and drivetrain before towing with your new INFINITI vehicle. DO NOT tow a trailer or haul a 
heavy load  for the first 500 miles. For the first 500 miles that that you tow a trailer, do not drive 
over 50 mph and do not make starts at full throttle.   Following these recommendations helps your 
engine and other parts of your vehicle wear in at heavier loads. 
 
Keep in mind, too, that towing places higher demands and added loads on vehicle components, so  
more frequent maintenance is called for. Your INFINITI 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. 
 
TIRE PRESSURE 
When towing a trailer, increase the tow vehicle tire pressures to the recommended cold 
specifications. You will find these figures in the vehicle owner’s manual and on the tire pressure 
chart located within the vehicle. Trailer tire condition, size, load rating, and inflation pressure must 
be in accordance with the trailer and tire manufacturer’s specifications. 
 
MEASURING VEHICLE WEIGHT 
The key to safer, efficient towing has to do with weight. Your vehicle — SUV, crossover, or 
passenger car — is capable of carrying and towing only a certain amount of weight. You must 
compare your vehicle’s tow weight ratings with the combined weight of the vehicle, trailer, and their 
contents. This will help ensure that the total weight does not exceed any of your vehicle’s tow 
weight ratings. There are four weights to consider when towing:  
 Gross Vehicle Weight 
 Gross Axle Weight (Front and Rear) 
 Gross Combined Weight 
 Trailer Tongue Load 
These ratings are based upon normal highway driving and may be reduced if operating in reduced-
traction situations (for example, slippery boat ramps). 
 
 WARNING- Attempting to tow loads greater than the GVWR, GAWR, GCWR, and the trailer tongue 
load specified could adversely affect vehicle handling, braking, and performance.  If you do, parts 
of your vehicle can break, and tire damage could occur as a result of overloading which may not be 
covered by your vehicle warranty. Overloading can also result in loss of control of your vehicle and 
which could cause a serious accident, personal injury or death. 
  
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TOWING GLOSSARY  
   
 
 
  
  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 it should accidentally become 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. 
  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 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 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.   
   WIRING HARNESS 
 Provides an electrical connection linking the tow vehicle’s electrical system to the 
trailer’s system.