2011 LEXUS RX350 width

252
2-5. Driving information
CAUTION
nRoof luggage carrier precautions
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:
lBefore driving, make sure the cargo is securely fastened on the roof luggage car-
rier.
lLoading 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.
lIf driving for a 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.
lDo not exceed 165 lb. (75 kg) cargo weight on the roof luggage carrier.
lTo reduce wind noise when there is no luggage loaded on the roof luggage car-
rier, move the front cross rail to the front-most position and the rear cross rail to
the rearmost position.
NOTICE
nWhen loading cargo
Be careful not to scratch the surface of the moon roof.
lPlace the cargo so that its weight is distrib-
uted evenly between the front and rear
axles.
lIf loading long or wide cargo, never exceed
the vehicle’s overall length or width.
(→P. 5 9 4 )
Cross rails
Roof rails

255
2-5. Driving information
2

When driving
Selecting tire chains
Use the correct tire chain size when mounting the tire chains. Chain size
is regulated for each tire size.
Side chain:
0.12 in. (3 mm) in diameter
0.98 in. (25 mm) in length
0.43 in. (10.8 mm) in width
Cross chain:
0.15 in. (3.9 mm) in diameter
1.00 in. (25.3 mm) in length
0.54 in. (13.8 mm) in width
Regulations on the use of tire chains
Regulations regarding the use of tire chains vary depending on location
and type of road. Always check local regulations before installing chains.
nWhen driving the vehicle
Accelerate the vehicle slowly and drive at a reduced speed suitable to the
road conditions.
nWhen parking the vehicle
Park the vehicle and move the shift lever to P without setting the
parking brake. The parking brake may freeze up, preventing it from
being released. If necessary, block the wheels to prevent inadvert-
ent sliding or creeping.

491
4-3. Do-it-yourself maintenance
4

Maintenance and care
Wheels
nWhen replacing wheels
The wheels of your vehicle are equipped with tire pressure warning valves and
transmitters that allow the tire pressure warning system to provide advanced warn-
ing in the event of a loss in tire inflation pressure. Whenever wheels are replaced,
tire pressure warning valves and transmitters must be installed. (→P. 4 7 9 )
If a wheel is bent, cracked or heavily corroded, it should be replaced.
Otherwise, the tire may separate from the wheel or cause a loss of han-
dling control.
nWheel selection
When replacing wheels, care should be taken to ensure that they
are equivalent to those removed in load capacity, diameter, rim
width, and inset*.
Replacement wheels are available at your Lexus dealer.
*: Conventionally referred to as “offset”.
Lexus does not recommend using the following:
lWheels of different sizes or types
lUsed wheels
lBent wheels that have been straightened
nAluminum wheel precautions
lUse only Lexus wheel nuts and wrenches designed for use with
your aluminum wheels.
lWhen rotating, repairing or changing your tires, check that the
wheel nuts are still tight after driving 1000 miles (1600 km).
lBe careful not to damage the aluminum wheels when using tire
chains.
lUse only Lexus genuine balance weights or equivalent and a
plastic or rubber hammer when balancing your wheels.

594
6-1. Specifications
Maintenance data (fuel, oil level, etc.)
Dimensions and weights
*1:Unladen vehicles
*2: Vehicles without roof antenna and roof rails
*3: Vehicles with roof antenna but without roof rails
*4: Vehicles with roof rails
Overall length187.8 in. (4770 mm)
Overall width74.2 in. (1885 mm)
Overall height*166.3 in. (1685 mm)*2
66.7 in. (1695 mm)*3
67.9 in. (1725 mm)*4
Wheelbase107.9 in. (2740 mm)
Tr e a dFront64.1 in. (1630 mm)
Rear63.8 in. (1620 mm)
Vehicle capacity weight
(Occupants + luggage)885 lb. (400 kg)
To w i n g
capacity
(Trailer
weight +
cargo)
Without towing pack-
age2000 lb. (907 kg)
With towing package3500 lb. (1588 kg)

612
6-1. Specifications
Tire size
nTypical tire size information
The illustration indicates typical
tire size.
Ti r e u s e
(P = Passenger car,
T = Temporary use)
Section width (millimeters)
Aspect ratio
(tire height to section width)
Tire construction code
(R = Radial, D = Diagonal)
Wheel diameter (inches)
Load index (2 digits or 3 digits)
Speed symbol
(alphabet with one letter)
nTire dimensions
Section width
Ti r e h e i g h t
Wheel diameter

613
6-1. Specifications
6

Vehicle specifications
Tire section names
Bead
Sidewall
Shoulder
Tread
Belt
Inner liner
Reinforcing rubber
Carcass
Rim lines
Bead wires
Chafer
Uniform Tire Quality Grading
This information has been prepared in accordance with regulations
issued by the National Highway Traffic Safety Administration of the U.S.
Department of Transportation.
It provides the purchasers and/or prospective purchasers of Lexus vehi-
cles with information on uniform tire quality grading.
Your Lexus dealer will help answer any questions you may have as you read
this information.
nDOT quality grades
All passenger vehicle tires must conform to Federal Safety Require-
ments in addition to these grades. Quality grades can be found where
applicable on the tire sidewall between tread shoulder and maximum
section width.
For example: Treadwear 200 Traction AA Temperature A

616
6-1. Specifications
Tire related termMeaning
Occupant distributionDistribution of occupants in a vehicle as specified in
the third column of Table 1* below
Production options
weight
The combined weight of installed regular production
options weighing over 5 lb. (2.3 kg) in excess of the
standard items which they replace, not previously
considered in curb weight or accessory weight,
including heavy duty brakes, ride levelers, roof rack,
heavy duty battery, and special trim
RimA metal support for a tire or a tire and tube assembly
upon which the tire beads are seated
Rim diameter
(Wheel diameter)Nominal diameter of the bead seat
Rim size designationRim diameter and width
Rim type designationThe industry manufacturer's designation for a rim by
style or code
Rim widthNominal distance between rim flanges
Vehicle capacity weight
(Total load capacity)
The rated cargo and luggage load plus 150 lb. (68
kg) times the vehicle's designated seating capacity
Vehicle maximum load on
the tire
The load on an individual tire that is determined by
distributing to each axle its share of the maximum
loaded vehicle weight, and dividing by two
Vehicle normal load on
the tire
The load on an individual tire that is determined by
distributing to each axle its share of curb weight,
accessory weight, and normal occupant weight (dis-
tributed in accordance with Table 1* below), and
dividing by two
We a t h e r s i d eThe surface area of the rim not covered by the
inflated tire

618
6-1. Specifications
Tire related termMeaning
Intended outboard side-
wall
(a) The sidewall that contains a whitewall, bears
white lettering, or bears manufacturer, brand,
and/or model name molding that is higher or
deeper than the same molding on the other side-
wall of the tire, or
(b) The outward facing sidewall of an asymmetrical
tire that has a particular side that must always
face outward when mounted on a vehicle
Light truck (LT) tire
A tire designated by its manufacturer as primarily
intended for use on lightweight trucks or multipur-
pose passenger vehicles
Load ratingThe maximum load that a tire is rated to carry for a
given inflation pressure
Maximum load ratingThe load rating for a tire at the maximum permissible
inflation pressure for that tire
Maximum permissible
inflation pressure
The maximum cold inflation pressure to which a tire
may be inflated
Measuring rimThe rim on which a tire is fitted for physical dimension
requirements
Open spliceAny parting at any junction of tread, sidewall, or
innerliner that extends to cord material
Outer diameterThe overall diameter of an inflated new tire
Overall width
The linear distance between the exteriors of the side-
walls of an inflated tire, including elevations due to
labeling, decorations, or protective bands or ribs
Passenger car tire
A tire intended for use on passenger cars, multipur-
pose passenger vehicles, and trucks, that have a
gross vehicle weight rating (GVWR) of 10,000 lb. or
less.
PlyA layer of rubber-coated parallel cords