2014 LEXUS LX570 Owners Manual

3772-5. Driving information
2
When driving
LX570_OM_OM60L21U_(U) CAUTION■
Driving with snow tires
Observe the following precautions to reduce the risk of accidents.
Failing to do so may result in a loss of vehicle control and cause death or serious
injury. ●
Use tires of the size specified for your vehicle. ●
Maintain the recommended level of tire inflation pressure. ●
Do not drive in excess of 75 mph (120 km/h), regardless of the type of snow tires
being used. ●
Snow tires should be installed on all wheels.■
Driving with tire chains
Observe the following precautions to reduce the risk of accidents.
Failing to do so may result in the vehicle being unable to be driven safely, and may
cause death or serious injury. ●
Do not drive in excess of the speed limit specified for the tire chains being used or
30 mph (50 km/h), whichever is lower. ●
Avoid driving on bumpy road surfaces or over potholes. ●
Avoid sudden acceleration, abrupt steeri ng, sudden braking and shifting opera-
tions that cause sudden engine braking. ●
Slow down sufficiently before entering a curve to ensure that vehicle control is
maintained.■
When installing tire chains
Turn off the vehicle height control.
The vehicle height may change due to the automatic leveling function and you may
catch part of your body in the vehicle, resulting in an accident. (  P. 3 1 8 )

3782-5. Driving information
LX570_OM_OM60L21U_(U) NOTICE■
Repairing or replacing snow tires
Request repairs of and obtain replacement snow tires from Lexus dealers or legiti-
mate tire retailers.
This is because the removal and attachment of snow tires affects the operation of
the tire pressure warning valves and transmitters. ■
Fitting tire chains
The tire pressure warning valves and transmitters may not function correctly when
tire chains are fitted.

3792-5. Driving information
2
When driving
LX570_OM_OM60L21U_(U) Trailer towing Your vehicle is designed primarily as a passenger-and-load-carrying vehi-
cle. Towing a trailer can have an adverse impact on handling, performance,
braking, durability, and fuel consumpt ion. For your safety and the safety of
others, you must not overload your vehicle or trailer. You must also ensure
that you are using appropriate towing equipment, that the towing equip-
ment has been installed correctly and used properly, and that you employ
the requisite driving habits.
Vehicle-trailer stability and braking performance are affected by trailer
stability, brake performance and settin g, trailer brakes, the hitch and hitch
systems (if equipped).
To tow a trailer safely, use extreme care and drive the vehicle in accor-
dance with your trailer’s characteristics and operating conditions.
Lexus warranties do not apply to damage or malfunction caused by towing
a trailer for commercial purposes.
Contact your Lexus dealer for further information about additional
requirements such as towing kits, etc.

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.

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)

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)

3832-5. Driving information
2
When driving
LX570_OM_OM60L21U_(U) Weight limits
● The gross trailer weight must never exceed 7000 lb. (3175 kg).
● The gross combination weight must never exceed 13400 lb.
(6078 kg).
● The gross vehicle weight must
never exceed the GVWR indi-
cated on the Certification Label.
● The gross axle weight on each
axle must never exceed the
GAWR indicated on the Certifi-
cation Label.
● If the gross trailer weight is over the unbraked TWR, trailer service
brakes are required.
● If the gross trailer weight is over 2000 lb. (907 kg), a sway control
device with sufficient capacity is required.
● If the gross trailer weight is over 5000 lb. (2268 kg), a weight distrib-
uting hitch with sufficient capacity is required.

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.