Page 380 of 956
3802-5. Driving information
LX570_OM_OM60L21U_(U) Towing related terms
■ GCWR (Gross Combination Weight Rating)
The maximum allowable gross
combination weight. The gross
combination weight is the sum of
the total vehicle weight (including
the occupants, cargo and any
optional equipment installed on
the vehicle) and the weight of the
trailer being towed (including the
cargo in the trailer).
■ GVWR (Gross Vehicle Weight Rating)
The maximum allowable gross
vehicle weight. The gross vehicle
weight is the total weight of the
vehicle. When towing a trailer, it is
the sum of the vehicle weight
(including the occupants, cargo
and any optional equipment
installed on the vehicle) and the
tongue weight.
Page 381 of 956
3812-5. Driving information
2
When driving
LX570_OM_OM60L21U_(U) ■ GAWR (Gross Axle Weight Rating)
The maximum allowable gross axle
weight. The gross axle weight is the
load placed on each axle (front
and rear).
■ TWR (Trailer Weight Rating)
The maximum allowable gross
trailer weight. The gross trailer
weight is the sum of the trailer
weight and the weight of the cargo
in the trailer.
TWR is calculated assuming base
vehicle with one driver, one front
passenger, towing package, hitch
and hitch systems (if required). Additional optional equipment,
passengers and cargo in the vehi-
cle will reduce the trailer weight
rating so as not to exceed GCWR,
GVWR and GAWR.
If the gross trailer weight exceeds
3000 lb. (1360 kg), it is recom-
mended to use a trailer with 2 or
more axles.Front GAWR
Rear GAWR
(With brakes)
Page 382 of 956
3822-5. Driving information
LX570_OM_OM60L21U_(U) ■ Unbraked TWR (Unbraked Trailer Weight Rating)
The trailer weight rating for towing
a trailer without a trailer service
brake system.
■ Tongue Weight
The load placed on the trailer hitch
ball. ( P. 385)(Without brakes)
Page 384 of 956
3842-5. Driving information
LX570_OM_OM60L21U_(U) GCWR, TWR, Unbraked TWR, Fifth wheel and Gooseneck towing
TWR
Confirm that the gross trailer weight, gross combination weight, gross vehi-
cle weight, gross axle weight and tongue weight are all within the limits.
■ GCWR
*13400 lb. (6078 kg)
■ TWR
*7000 lb. (3175 kg)
■ Unbraked TWR
*1000 lb. (454 kg)
* : This model meets the tow-vehicle traile ring requirement of SAE International
per SAE J2807.
Page 385 of 956

3852-5. Driving information
2
When driving
LX570_OM_OM60L21U_(U) Trailer Tongue Weight
● A recommended tongue weight varies in accordance with the types of
trailers or towing as described below.
● To ensure the recommended values shown below, the trailer must be
loaded by referring to the following instructions.
• Tongue Weight
The gross trailer weight should be distributed so that the tongue
weight is 9% to 11%. (Tongue we ight/Gross trailer weight 100 =
9% to 11%)
Gross trailer weight
Tongue weight
If using a weight distri buting hitch when towing , return the front axle
to the same weight as before the trailer connection.
If front axle weight cannot be mea sured directly, measure the front
fender height above the front axle before connection. Adjust weight
distributing hitch torque until fr ont fender is returned to the same
height as before connection.
The gross trailer weight, gross axle weight and tongue weight can be
measured with platform scales foun d at a highway weighing station,
building supply company, truck ing company, junk yard, etc.
Page 386 of 956
3862-5. Driving information
LX570_OM_OM60L21U_(U) Hitch
Trailer hitch assemblies have differ ent weight capacities. Lexus recom-
mends the use of Lexus hitch/bracket for your vehicle. For details, con-
tact your Lexus dealer.
● If you wish to install a trailer hitch, contact your Lexus dealer.
● Use only a hitch that conforms to the gross tr ailer weight requirement
of your vehicle.
● Follow the directions supplied by the hitch manufacturer.
● Lubricate the hitch ball with a light coating of grease.
● Remove the trailer hitch whenever you are not towing a trailer. After
removing the hitch, seal any mount ing hole in the vehicle body to pre-
vent entry of any substances into the vehicle.
Removing hitch cover
Remove the clip.
Grasp the lower edge of the hitch
cover and raise the cover. When reattaching the cover,
reverse the steps listed.STEP 1
STEP 2
Page 388 of 956
3882-5. Driving information
LX570_OM_OM60L21U_(U) Positions for towing hitch receiver
Hitch receiver pin hole position:
45.3 in. (1151 mm)
Connecting trailer lights
Use the wire harness stored in the
rear end under the vehicle body.
Please consult your dealer when
installing trailer lig hts, as incorrect
installation may cause damage to
the vehicle’s lights. Please take
care to comply with your state’s
laws when installing trailer lights.
Page 391 of 956

3912-5. Driving information
2
When driving
LX570_OM_OM60L21U_(U) Trailer towing tips
Your vehicle will handle differently when towing a trailer. In order to avoid
an accident, death or serious injury, k eep the following in mind when tow-
ing:
● Speed limits for towing a trailer va ry by state or province. Do not
exceed the posted towing speed limit.
● Lexus recommends that the vehicle-trailer speed limit is 65 mph (104
km/h) on a flat, straight, dry road. Do not exceed this limit, the posted
towing speed limit or the speed limit for your trailer as set forth in your
trailer owner’s manual, whichever is lowest. Instability of the towing
vehicle-trailer combination (trailer sway) increases as speed increases.
Exceeding speed limits may cause loss of control.
● Before starting out, check the trail er lights, tires and the vehicle-trailer
connections. Recheck after driving a short distance.
● Practice turning, stopping and reversing with th e trailer attached in an
area away from traffic until you be come accustomed to the feel of the
vehicle-trailer combination.
● Reversing with a trailer attached is difficult and requires practice. Grip
the bottom of the steering wheel and move your hand to the left to
move the trailer to the left. Move yo ur hand to the right to move the
trailer to the right. (This is gene rally opposite to reversing without a
trailer attached.) Avoid sharp or prolonged turning. Have someone
guide you when reversing to redu ce the risk of an accident.
● As stopping distance is increased when towing a trailer, vehicle-to-
vehicle distance should be increas ed. For each 10 mph (16 km/h) of
speed, allow at least one vehicle and trailer length.
● Avoid sudden braking as you may skid , resulting in the trailer jackknif-
ing and loss of vehicle control. This is especially true on wet or slippery
surfaces.