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2-5. Driving information
2
When driving
RX350/270_EE
Cargo and luggage
CAUTION
■Things that must not be carried in the luggage compartment
The following things may cause a fire if loaded in the luggage compartment:
●Receptacles containing gasoline
●Aerosol cans
Take notice of the following information about storage precautions, cargo
capacity and load:
●Stow cargo and luggage in the luggage compartment whenever
possible.
●Be sure all items are secured in place.
●Be careful to keep the vehicle level. Placing the weight as far for-
ward as possible helps maintain vehicle balance.
●For better fuel economy, do not carry unnecessary weight.
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2-5. Driving information
2
When driving
RX350/270_EE
CAUTION
■Roof luggage carrier precautions (if equipped)
To use the roof rails as a roof luggage carrier, you must fit the roof rails with two or
more genuine Lexus cross rails or their equivalent.
When you load cargo on the roof luggage carrier, observe the following:
●Before driving, make sure the cargo is securely fastened on the roof luggage car-
rier.
●Loading cargo on the roof luggage carrier will make the center of gravity of the
vehicle higher. Avoid high speeds, sudden starts, sharp turns, sudden braking or
abrupt maneuvers, otherwise the result may be a loss of control or vehicle roll-
over due to failure to operate this vehicle correctly and result in death or serious
injury.
●If driving for long distances, on rough roads, or at high speeds, stop the vehicle
now and then during the trip to make sure the cargo remains in its place.
●Do not exceed 75 kg (165 lb.) cargo weight on the roof luggage carrier.
NOTICE
■When loading cargo
Be careful not to scratch the surface of the moon roof.
●Place the cargo so that its weight is distrib-
uted evenly between the front and rear
axles.
●If loading long or wide cargo, never exceed
the vehicle’s overall length or width.
(→P. 606)
Roof rails
Cross rails
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2-5. Driving information
RX350/270_EE
Trailer towing (RX350)
The strain of towing a trailer will have a negative impact on the running per-
formance, handling, fuel consumption and endurance of your vehicle. Use
the vehicle features in the correct manner and operate the vehicle with
care for safer driving and optimal comfort. Damage and/or malfunctions
that occur as a result of towing performed for commercial purposes are
not covered by the Lexus warranty.
Ask your local authorized Lexus dealer or repairer, or another duly quali-
fied and equipped professional for further details before towing, as there
are additional legal requirements in some countries.
■Weight limits
Check the allowable towing capacity, GVM (Gross Vehicle Mass),
MPAC (Maximum Permissible Axle Capacity), and permissible
drawbar load before towing. (→P. 606)
■Towing hitch/bracket
Lexus recommends the use of the Lexus hitch/bracket for your
vehicle. Other products of a suitable nature and comparable quality
may also be used.
■To prevent an accident
The handling of the vehicle will feel different when towing a trailer.
Beware of the 3 most common causes of towing-related accidents:
driver error, excessive speed, and overloading.
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2-5. Driving information
2
When driving
RX350/270_EE
Important points regarding trailer loads
■Total trailer weight and permissible drawbar load
Total trailer weight
Weight of the trailer itself plus the
trailer load should be within the
maximum towing capacity.
Exceeding this weight is danger-
ous.
(→P. 6 0 6 )
When towing a trailer, use a friction
coupler or friction stabilizer (sway
control device).
When the total trailer weight is
greater than the vehicle weight, we
recommended the use of a friction
stabilizer (sway control device).
Permissible drawbar load
Allocate the trailer load so that the
drawbar load is greater than 25 kg
(55.1 lb.) or 4% of the towing
capacity. Do not let the drawbar
load exceed the indicated weight.
(→P. 6 0 6 )
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2-5. Driving information
RX350/270_EE■Information tag (manufacturer’s label)
Type A
Gross vehicle mass
Maximum permissible rear axle
capacity
Type B
Gross vehicle mass
Maximum permissible rear axle
capacity
■Gross vehicle mass
The combined weight of the driver, passengers, luggage, towing hitch,
total curb mass and drawbar load should not exceed the gross vehicle
mass by more than 100 kg (220.5 lb.). Exceeding this weight is dan-
gerous.
■Maximum permissible rear axle capacity
The weight borne by the rear axle should not exceed the maximum
permissible axle capacity by 15% or more. Exceeding this weight is
dangerous.
The values for towing capacity were derived from testing conducted at
sea level. Take note that engine output and towing capacity will be
reduced at high altitudes.
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2-5. Driving information
RX350/270_EE
■Tire info rmat ion
●Ensure that your vehicle’s tires are properly inflated. Adjust the tire pressure to
the recommended pressure. (→P. 6 1 7 )
●Increase the air pressure of the trailer tires in accordance with the total trailer
weight and according to the values recommended by the manufacturer of your
trailer.
■Trailer lights
●Check that the turn signal lights and stoplights are operating correctly every
time you hitch up the trailer. Directly wiring up to your vehicle may damage the
electrical system and stop the lights from functioning correctly.
●Please consult at any authorized dealer or repairer, or another duly qualified
and equipped professional when installing trailer lights, 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.
■Break-in schedule
Lexus recommends that vehicles fitted with new power train components should
not be used for towing trailers for the first 800 km (500 miles).
■Safety checks before towing
●Check that the maximum load limit for the towing hitch/bracket hitch ball is not
exceeded. Bear in mind that the coupling weight of the trailer will add to the
load exerted on the vehicle. Also make sure that you will not be towing a load
that exceeds the maximum permissible axle capacity.
●Ensure that the trailer load is secure.
●Supplementary outside rear view mirrors should be added to the vehicle if the
traffic behind cannot be clearly seen with standard mirrors. Adjust the extend-
ing arms of these mirrors on both sides of the vehicle so that they always provide
maximum visibility of the road behind.
■Maintenance
●Maintenance must be performed more frequently when using the vehicle for
towing due to the greater weight burden placed on the vehicle compared to
normal driving.
●Retighten all bolts securing the hitching ball and bracket after towing for
approximately 1000 km (600 miles).
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4-3. Do-it-yourself maintenance
4
Maintenance and care
RX350/270_EE
Initializing the tire pressure warning system
■The tire pressure warning system must be initialized in the following
circumstances:
●When rotating the tires
●When the tire inflation pressure is changed such as when changing
travelling speed or load weight
●When changing the tire size
When the tire pressure warning system is initialized, the current tire
inflation pressure is set as the benchmark pressure.
■How to initialize the tire pressure warning system
Park the vehicle in a safe place and turn the “ENGINE START
STOP” switch off.
While the vehicle is moving, initialization is not performed.
Adjust the tire inflation pressure to the specified cold tire inflation
pressure level. (→P. 6 1 7 )
Make sure to adjust the tire pressure to the specified cold tire inflation
pressure level. The tire pressure warning system will operate based on
this pressure level.
Turn the “ENGINE START STOP” switch to IGNITION ON
mode.
STEP1
STEP2
STEP3
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4-3. Do-it-yourself maintenance
4
Maintenance and care
RX350/270_EE
Tire inflation pressure
■Effects of incorrect tire inflation pressure
Driving with incorrect tire inflation pressure may result in the following:
●Reduced fuel efficiency
●Reduced driving comfort and tire life
●Reduced safety
●Damage to the drive train
If a tire needs frequent inflating, have it checked by any authorized Lexus dealer or
repairer, or another duly qualified and equipped professional.
■Instructions for checking tire inflation pressure
When checking tire inflation pressure, observe the following:
●Check only when the tires are cold.
If your vehicle has been parked for at least 3 hours or has not been driven for
more than 1.5 km or 1 mile, you will get an accurate cold tire inflation pressure
reading.
●Always use a tire pressure gauge.
The appearance of the tire can be misleading. In addition, tire inflation pressure
that is even just a few pounds off can degrade ride and handling.
●Do not reduce tire inflation pressure after driving. It is normal for tire inflation
pressure to be higher after driving.
●Never exceed the vehicle capacity weight.
Passengers and luggage weight should be placed so that the vehicle is bal-
anced.
Make sure to maintain proper tire inflation pressure. Tire inflation pressure
should be checked at least once per month. However, Lexus recommends
that tire inflation pressure be checked once every two weeks.
(→P. 6 1 7 )
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