trailer LEXUS LX570 2021 Owner's Manual

208
LX570_OM_OM60T33U_(U)4-1. Before driving
WARNING
■Trailer towing precautions
●To tow a trailer safely, use extreme care an
d drive the vehicle in accordance with the
trailer’s characteristics and operating condit ions. Failure to do so could cause an acci-
dent resulting in death or serious injury. Vehicle stability and braking performance are
affected by trailer st ability, brake setting and performanc e, and the hitch. Your vehicle
will handle differently when towing a trailer.
●Set the vehicle height to the “LO” mode and turn off the 4-Wheel AHC when you
connect a trailer, otherwise the vehicle height may change due to the automatic level-
ing function, and you may catch part of your body in the vehicle, resulting in an acci-
dent. ( P. 302)
■To avoid accident or injury
●Do not exceed the TWR, unbraked TWR, GCWR, GVWR or GAWR.
●If the gross trailer weight is over 2000 lb. (907 kg), a sway control device with suffi-
cient capacity is required.
●If the gross trailer weight is over 5000 lb. (2268 kg), a weight distributing hitch with
sufficient capacity is required.
●Adjust the tongue weight within the approp riate range. Place heavier loads as close
to the trailer axle as possible.
●Do not exceed 65 mph (104 km/h), the posted towing speed limit or the speed limit
for your trailer as set forth in your trai ler owner’s manual, whichever is lowest. Slow
down sufficiently before making a turn, in crosswinds, on wet or slippery surface, etc.
to help avoid an accident. If you experien ce a vehicle-trailer instability from reducing
a certain speed, slow down and make sure you keep your vehicle speed under the
speed of which you experience the instability.
●Do not make jerky, abrupt or sharp turns.
●Do not apply the brakes suddenly as you ma y skid, resulting in jackknifing and loss of
vehicle control. This is especially true on wet or slippery surfaces.
●Do not exceed the trailer hitch assembly weight, gross vehicle weight, gross axle
weight and trailer tongue weight capacities.
●Do not use cruise control (if equipped) or dynamic radar cruise control with full-
speed range (if equipped) when trailer towing.
●Slow down and downshift before descending steep or long downhill grades. Do not
make sudden downshifts while descending steep or long downhill grades.
●Vehicle-trailer instability is more likely on steep long down hills. Before descending
steep or long downhill grades, slow down and downshift. Do not make sudden down-
shifts when descending steep or long do wnhill grades. Avoid holding the brake pedal
down too long or applying the brakes too frequently. This could cause the brakes to
overheat and result in reduced braking efficiency.

LX570_OM_OM60T33U_(U)
2094-1. Before driving
4
Driving
WARNING
■Hitch
Trailer hitch assemblies have different weight capacities established by the hitch manu-
facturer. Even though the vehicle may be physically capable of towing a higher weight,
the operator must determine the maximum weight rating of the particular hitch assem-
bly and never exceed the maximum weight rating specified for the trailer-hitch.
Exceeding the maximum weight rating set by the trailer-hitch manufacturer can cause
an accident resulting in death or serious personal injuries.
■When towing a trailer
Lexus recommends trailers with brakes that conform to any applicable federal and
state/provincial regulations.
●If the gross trailer weight exceeds unbraked TWR, trailer brakes are required. Lexus
recommends trailers with brakes that conform to all applicable federal and state/pro-
vincial regulations.
●Never tap into your vehicle’s hydraulic system, as this will lower the vehicle’s braking
effectiveness.
●Never tow a trailer without using a safety chain securely attached to both the trailer
and the vehicle. If damage occurs to the co upling unit or hitch ball, there is danger of
the trailer wandering into another lane.
NOTICE
■When installing a trailer hitch
Use only the position recommended by your Lexus dealer. Do not install the trailer
hitch on the bumper; this may cause body damage.
■Do not directly splice trailer lights
Do not directly splic e trailer lights. Directly splicin g trailer lights may damage your
vehicle’s electrical system and cause a malfunction.

234
LX570_OM_OM60T33U_(U)4-3. Operating the lights and wipers
■Front camera detection information
●The high beam may not be automatically
turned off in the following situations:
• When oncoming vehicles suddenly appear from a curve
• When the vehicle is cut in front of by another vehicle
• When vehicles ahead are hidden from sight due to repeated curves, road dividers or roadside trees
• When vehicles ahead appear from the faraway lane on wide road
• When vehicles ahead have no lights
●The high beam may be turned off if a vehicle ahead that is using fog lights without using
the headlights is detected.
●House lights, street lights, traffic signals, and illuminated billboards or signs may cause
the high beam to switch to the low beams, or the low beams to remain on.
●The following factors may affect the amount of time taken to turn the high beam on or
off:
• The brightness of headlights, fog lights, and tail lights of vehicles ahead
• The movement and direction of vehicles ahead
• When a vehicle ahead only has operational lights on one side
• When a vehicle ahead is a two-wheeled vehicle
• The condition of the road (gradient, cu rve, condition of the road surface etc.)
• The number of passengers and amount of luggage
●The high beam may be turned on or off when the driver does not expect it.
●Bicycles or similar objects may not be detected.
●In the situations shown below, the system may not be able to accurately detect sur-
rounding brightness levels. This may cause the low beams to remain on or the high
beams to cause problems for pedestrians, ve hicles ahead or other parties. In these
cases, manually switch between the high and low beams.
• In bad weather (rain, snow, fog, sandstorms etc.)
• The windshield is obscured by fog, mist, ice, dirt etc.
• The windshield is cracked or damaged.
• The front camera is deformed or dirty.
• The front camera temperature is extremely high.
• Surrounding brightness levels are equal to th ose of headlights, tail lights or fog lights.
• Vehicles ahead have headlights that are either switched off, dirty, are changing color,
or are not aimed properly.
• When driving through an area of intermittently changing brightness and darkness.
• When frequently and repeated ly driving ascending/descending roads, or roads with
rough, bumpy or uneven surfaces (such as stone-paved roads, gravel tracks etc.).
• When frequently and repeatedly taking curves or driving on a winding road.
• There is a highly reflective object ahead of the vehicle, such as a sign or a mirror.
• The back of a vehicle ahead is highly re flective, such as a container on a truck.
• The vehicle’s headlights are damaged or dirty.
• The vehicle is listing or tilting, due to a flat tire, a trailer being towed etc.
• The high beam and low beam are repeated ly being switched between in an abnor-
mal manner.
• The driver believes that the high beam may be causing problems or distress to other drivers or pedestrians nearby.

264
LX570_OM_OM60T33U_(U)4-5. Using the driving support systems
• When rapidly closing on an electric toll ga te barrier, parking area barrier, or other
barrier that opens and closes
• When using an automatic car wash
• When the vehicle is hit by water, sn ow, dust, etc. from a vehicle ahead
• When driving through steam or smoke
• When there are patterns or paint on the road or a wall that may be mistaken for a
vehicle or pedestrian
• When driving near an object that reflects radio waves, such as a large truck or
guardrail
• When driving near a TV tower, broadcasting station, electric power plant, or other location where strong radio waves or electrical noise may be present
■Situations in which the system may not operate properly
●In some situations such as the following, a vehicle may not be detected by the radar
sensor and front camera, preventing the system from operating properly:
• If an oncoming vehicle is approaching your vehicle
• If a vehicle ahead is a motorcycle or bicycle
• When approaching the side or front of a vehicle
• If a preceding vehicle has a small rear end, such as an unloaded truck • When passing under an object (billboard, etc.) at the top of an uphill road
• When driving through or under objects that may contact the vehicle, such as thick
grass, tree branches, or a banner
• If a preceding vehicle has a low rear end, such as a low bed trailer

278
LX570_OM_OM60T33U_(U)4-5. Using the driving support systems
WARNING
■Situations unsuitable for dynamic rada
r cruise control with full-speed range
Do not use dynamic radar cruise control with full-speed range in any of the following
situations.
Doing so may result in inappropriate speed control and could cause an accident result-
ing in death or serious injury.
●Roads where there are pede strians, cyclists, etc.
●In heavy traffic
●On roads with sharp bends
●On winding roads
●On slippery roads, such as thos e covered with rain, ice or snow
●On steep downhills, or where there are sudden changes between sharp up and down
gradients
Vehicle speed may exceed the set speed when driving down a steep hill.
●At entrances to freeways and highways
●When weather conditions are bad enough that they may prevent the sensors from
detecting correctly (fog, snow, sandstorm, heavy rain, etc.)
●When there is rain, snow, etc. on the front surface of the radar sensor or front camera
●In traffic conditions that require frequent repeated a cceleration and deceleration
●When your vehicle is towing a trailer or during emergency towing
●When an approach warning buzzer is heard often

290
LX570_OM_OM60T33U_(U)4-5. Using the driving support systems
■Automatic cruise control cancelation
Cruise control will stop main
taining the vehicle speed in an y of the following situations:
●Actual vehicle speed falls more than appr oximately 10 mph (16 km/h) below the preset
vehicle speed.
At this time, the memorized set speed is not retained.
●Actual vehicle speed is below approximately 25 mph (40 km/h).
●VSC is activated.
●Active TRAC is activated for a period of time.
●The switching operation continues for 5 seco nds or more after the center differential
lock switch has been operated.
●When the VSC or Active TR AC system is turned off.
■If “Cruise Control Malfunction Visit Your Dealer” is shown on the multi-information
display
Press the “ON/OFF” button once to deactiv ate the system, and then press the button
again to reactivate the system.
If the cruise control speed cannot be set or if the cruise control cancels immediately after
being activated, there may be a malfunction in the cruise control system. Have the vehi-
cle inspected by your Lexus dealer.
WARNING
■To avoid operating the cruise control by mistake
Switch the cruise control off using th e “ON/OFF” button when not in use.
■Situations unsuitable for cruise control
Do not use cruise control in any of the following situations.
Doing so may result in loss of control and could cause an accident resulting in death or
serious injury.
●In heavy traffic
●On roads with sharp bends
●On winding roads
●On slippery roads, such as thos e covered with rain, ice or snow
●On steep hills
Vehicle speed may exceed the set speed when driving down a steep hill.
●When your vehicle is towing a trailer or during emergency towing

385
LX570_OM_OM60T33U_(U)4-5. Using the driving support systems
4
Driving
Driving assist systems
◆Multi Terrain ABS (Anti-lock Brake System)
Helps to prevent wheel lock when the brakes are applied suddenly, or if the brakes are
applied while driving on a slippery road su
rface, or in off-road conditions (such as
rough roads, sand and mud)
◆Brake assist
Generates an increase d level of braking force after the brake pedal is depressed
when the system detects a panic stop situation
◆VSC (Vehicle Stability Control)
Helps the driver to control skidding when swerving suddenly or turning on slippery
road surfaces
◆Active TRAC (Traction Control)
Helps to maintain drive power and prevent the 4 wheels from spinning when starting
the vehicle or accelerating on slippe ry roads, or in off-road conditions
◆Hill-start assist control
Helps to reduce the backward movement of the vehicle when starting on an incline or
slippery slope
◆AVS (Adaptive Variable Suspension system)
By independently controlling the damping force of the shock absorbers for each of
the 4 wheels according to th e road and driving conditions, this system helps riding
comfort with superior steering stability, and helps good vehicle posture. When
SPORT S+ mode is selected by the drivin g mode select switch, the damping force is
suitable for sporty driving. ( P. 291)
◆VGRS (Variable Gear Ratio Steering)
Helps to adjust the wheel turning angle in accordance with the vehicle speed and
steering wheel movement.
◆Trailer Sway Control
Helps the driver to control trailer sway by selectively applying brake pressure for indi-
vidual wheels and reducing engine to rque when trailer sway is detected.
Trailer Sway Control is part of the VSC system and will not operate if VSC turned off
or experiences a malfunction.
To help enhance driving safety and perf ormance, the following systems oper-
ate automatically in response to variou s driving situations. Be aware, however,
that these systems are supplementary and should not be relied upon too heav-
ily when operating the vehicle.

386
LX570_OM_OM60T33U_(U)4-5. Using the driving support systems
The slip indicator light flashes to indi-
cate that the VSC/Trailer Sway Con-
trol/Active TRAC/hill-start assist
control systems have been engaged.
The stop lights and high mounted stop-
light turn on when the hill-start assist
control system or Trailer Sway Control is
operating.
If the vehicle gets stuck in fresh snow or mud, Active TRAC system reduce
power from the engine to the wheels. You may need to turn the system off to
enable you to rock the vehi
cle in order to free it.
Quickly push and release the button to
turn off Active TRAC.
The TRAC OFF indicator will come on.
Push the button again to turn the system
back on.
■Turning off Active TRAC, VSC and Trailer Sway Control
Push and hold the button for more than 3 seco nds while the vehicle is stopped to turn off
Active TRAC, VSC and Trailer Sway Control
The VSC OFF indicator light and TR AC OFF indicator will come on.
*
Push the button again to turn the system back on.
*: On vehicles with pre-collision system, pre-co llision brake assist and pre-collision brak-
ing will also be disabled. The PCS warning light will come on and the message will be
shown on the multi-information display. ( P. 256)
■Automatic reactivation of Active TRAC, VSC and Trailer Sway Control
Turning the engine switch of f after turning off the Active TRAC and VSC systems will
automatically re-enable them.
When the VSC/Trailer Sway Cont rol/Active TRAC/hill-start assist
control systems are operating
Disabling the Active TRAC system

LX570_OM_OM60T33U_(U)
3874-5. Using the driving support systems
4
Driving
■Automatic Active TRAC reactivation
If only the Active TRAC system is turned off, the Active TRAC system will turn on when
vehicle speed increases.
■Automatic Active TRAC, VSC and Trailer Sway Control reactivation
If the Active TRAC, VSC and Trailer Sway Control are turned off, the systems will not
turn on even when vehicle speed increases.
■If the brake system overheats
The brake system may overheat . In this case, a buzzer will sound, and the TRAC OFF
indicator will flash, and Active TRAC and hill-s tart assist control will be temporarily inop-
erable. In this event, stop the vehicle immedi ately in a safe place, and allow the brake sys-
tem to cool down sufficiently until the TR AC OFF indicator goes off. (There is no
problem with continuing normal driving.)
■Sounds and vibrations caused by the Multi Terrain AB S, brake assist, Active TRAC,
VSC, Trailer Sway Control, hill -start assist control and VGRS
●A sound may be heard from the engine compartment when the engine is started or just
after the vehicle begins to move. This soun d does not indicate that a malfunction has
occurred in any of these systems.
●Any of the following conditions may occur when the above systems are operating.
None of these indicates that a malfunction has occurred.
• Vibrations may be felt through the vehicle body and steering.
• A motor sound may be heard afte r the vehicle comes to a stop.
• The brake pedal may pulsate slightly af ter the Multi Terrain ABS is activated.
• The brake pedal may move down slightly after the Multi Terrain ABS is activated.
■Hill-start assist control is operational when
●The shift lever is in D or S.
●The brake pedal is not depressed.
■VGRS is disabled in the following situations
●During stopping or the steering wheel has been moved for a long time while driving at
lower speeds.
●After the engine is restarted at less than -22°F (-30°C).
●If you disconnect the battery with the steering wheel turned, the center position of the
steering wheel could be slightly and tempor ary changed. To initialize the VGRS, drive
for a short while.

388
LX570_OM_OM60T33U_(U)4-5. Using the driving support systems
WARNING
Any of the following conditions may result in
an accident which could cause death or seri-
ous injury:
■The Multi Terrain ABS does not operate effectively when
●The limits of tire gripping performance have been exceeded (such as excessively
worn tires on a snow covered road).
●The vehicle hydroplanes while driving at high speed on a wet or slick road.
■Stopping distance when the Multi Terrain ABS is operating may exceed that of nor-
mal conditions
The Multi Terrain ABS is not designed to shorten the vehicle’s stopping distance.
Always maintain a safe distance from the vehicle in front of you, especially in the follow-
ing situations.
●When driving on dirt, grav el or snow-covered roads
●When driving with tire chains
●When driving over bumps in the road
●When driving over roads with potholes or uneven roads
■Active TRAC may not operate effectively when
Directional control and power may not be achievable wh ile driving on slippery road
surfaces, even if the Active TRAC is operating.
Do not drive the vehicle in conditions where stability and power may be lost.
■If the hill-start assist control does not operate effectively
Do not overly rely on the hill-start assist control. The hill-start assist control may not
operate effectively on steep inclines and roads covered in ice.
■When Active TRAC, VSC and Tr ailer Sway Control are off
Be especially careful and drive at a speed appropriate to the road conditions. As these
are systems to help to ensure vehicle stability and driving force, do not turn off Active
TRAC, VSC and Trailer Sway Control unless necessary.
■When the VSC and Trailer Sway Control are activated
The slip indicator light flas hes. Always drive carefully.
Reckless driving may cause an accident. Exercise particular care when the indicator
light flashes.