lane assist INFINITI QX80 2021 Towing Guide

2021 INFINITI Towing Guide


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BREAKAWAY SWITCH
On a trailer with electric brakes, a breakaway switch can automatically activate the trailer
brake system if the trailer becomes separated from the tow vehicle. Should the trailer
become detached, a breakaway switch may help prevent the trailer from wandering into
another lane.

WARNING- A breakaway switch relies on the power of a trailer battery, so make
sure it is not discharged. Never use the breakaway switch to “park” the trailer on a grade.
The battery would eventually discharge and release the brake, allowing the trailer to roll.

Be sure to leave enough slack in the tether on the breakaway switch to turn corners
without binding. If you do not, the electric trailer brakes will lock-up and not release. See
your trailer manufacturer for proper installation of a breakaway switch that is compatible
with your trailer braking system.

TRAILER LIGHTS
Trailer lights should comply with all applicable federal, state, and local regulations, and
should be in proper working order at all times. If your vehicle is equipped with a towing
package, a 7-pin trailer harness connector is located at the trailer hitch, under a cover on
the rear bumper on some models for connecting trailer lights. For trailers that use a
different style plug, contact your INFINITI retailer or a professional supplier of towing
equipment for adaptors to the 7-pin trailer harness.

A trailer’s taillights, stoplights, and turn signal lights must be wired into the towing vehicle’s
electrical system.* Most trailers operate on a four-wire system in which the stoplights and
turn signal lights utilize the same wire. Most all INFINITI vehicles have separate wires for
the stoplights and turn signal lights, therefore a device called a “converter” is needed.
Specifically, a “powered converter” must be used, as a converter of this type creates only
minimal additional electrical demand (draw) on the vehicle lighting circuits, which helps to
ensure protection for the vehicle’s sensitive electronics.* Always check for correct operation
of the taillights, stoplights, and turn signal lights every time you connect a trailer for
towing. Never replace vehicle fuses with fuses of a higher amperage rating than the
original.

*Vehicles equipped with LED taillights require that wiring be connected at a specific location. For
assistance in
hooking up trailer lights, contact your INFINITI retailer or a professional supplier of
towing equipment.

CAUTION – Improperly installed or poor quality trailer harness wiring may adversely
affect your vehicle’s electrical system. Use only an INFINITI approved wiring harness,
or consult your retailer or a professional supplier of towing equipment for compatible
equipment.

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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.
The vehicle may handle unpredictably which could cause a loss of vehicle control
resulting in an accident, property damage, serious injury or death. Therefore, to
maintain adequate control, reduce your speed and shift to a lower gear and apply
the braking in short bursts. If your vehicle is equipped with Tow Mode, see your vehicle
owner’s manual for information about the use of this function.

WARNING- Avoid long or repeated use of the brakes when descending a hill, as this
reduces their effectiveness and could cause overheating which could result in
damage to your brake components or unable to slow to a safe speed. Shifting to a
lower gear instead provides “engine braking” and reduces the need to brake as
frequently.
HIGH-ALTITUDE PERFORMANCE
An engine will lose about 4% of its performance for every 1,000 feet above sea level
that you travel. If you will be towing in high altitudes, it is a good idea to allow more
time than usual due to the engine’s reduced performance.

While towing a trailer, do not use the following systems (if so equipped):
— ProPILOT Assist
— the Lane Departure Warning (LDW) system
— the Lane Departure Prevention (LDP) system
— the Blind Spot Warning (BSW) system
— the Blind Spot Intervention® (BSI) system
— the Back-up Collision Intervention (BCI) system
— the Intelligent Cruise Control (ICC) system
— the Distance Control Assist (DCA) system
— the Forward Emergency Braking (FEB) with pedestrian detection system
— the Predictive Forward Collision Warning (PFCW) system.

INTELLIGENT CRUISE CONTROL

WARNING- In order to maintain a safe distance to the vehicle ahead to avoid the
possibility of accidents, property damage, serious injury or death. INFINITI recommends
not to use the Intelligent Cruise control (ICC) system while towing a trailer or other
vehicle. In certain road conditions when your vehicle is towing, the ICC sensor may
not detect a vehicle ahead. If the ICC sensor cannot detect the reflector on the
vehicle ahead, the ICC system may not maintain the selected distance which could
cause an accident, property damage, or death.