
WHEELS AND TIRES
471
Tread wear indicatorThe tires have wear indicator strips running across or parallel to the tread.
The letters TWI are printed on the side of the tire. When approximately 1/16" (1.6 mm) is left onthe tread, these strips become visible and indi-cate that the tire should be replaced. Tires withless than 1/16" (1.6 mm) tread offer very poortraction. When replacing worn tires, it is recommended that the tire be identical in type (radial) and sizeas the one being replaced. Using a tire of thesame make (manufacturer) will help preventalteration of the driving characteristics of thevehicle.
Related information
• Tire direction of rotation (p. 470)
• Checking tire inflation pressure (p. 473)
Loading specifications Properly loading your vehicle will provide maxi- mum return of vehicle design performance.
Weight designations
Before loading your vehicle, familiarize yourself with the following terms for determining yourvehicle's weight ratings, with or without a trailer,from the vehicle's Federal/Canadian Motor Vehi-cle Safety Standards (FMVSS/CMVSS) label, andthe vehicle's tire information placard:
Curb weightThe weight of the vehicle including a full tank of fuel and all standard equipment. It does notinclude passengers, cargo, or optional equipment.
Capacity weightAll weight added to the curb weight, including cargo and optional equipment. When towing,trailer hitch tongue load is also part of cargoweight.
Permissible axle weightThe maximum allowable weight that can be car- ried by a single axle (front or rear). These num-bers are shown on the Federal/Canadian MotorVehicle Safety Standards (FMVSS/CMVSS) label.The total load on each axle must never exceed itsmaximum permissible weight.
Gross vehicle weight (GVW)The vehicle's curb weight + cargo + passengers.
Steps for Determining Correct Load Limit1. Locate the statement "the combined weight
of occupants and cargo should never exceed XXX pounds" on your vehicle's placard.
2. Determine the combined weight of the driver and passengers that will be riding in yourvehicle.
3. Subtract the combined weight of the driver and passengers from XXX kilograms or XXXpounds.
4. The resulting figure equals the available amount of cargo and luggage load capacity.For example, if the "XXX" amount equals1400 lbs. and there will be five 150 lb. pas-sengers in your vehicle, the amount of availa-ble cargo and luggage load capacity is650 lbs. (1400 – 750 (5 × 150) = 650 lbs.)
5. Determine the combined weight of luggage and cargo being loaded on the vehicle. Thatweight may not safely exceed the availablecargo and luggage load capacity calculatedin Step 4.
6. If your vehicle will be towing a trailer, load from your trailer will be transferred to yourvehicle.

WHEELS AND TIRES
473
Snow tires and chains
The use of snow chains and/or winter tires can help improve traction in winter driving conditions.
Snow chains can be used on your Volvo with the following restrictions:
• Snow chains should be installed on front wheels only. Use only Volvo approved snowchains.
• If accessory, aftermarket or "custom" tiresand wheels are installed and are of a size dif-ferent than the original tires and wheels,chains in some cases CANNOT be used.Sufficient clearances between chains andbrakes, suspension and body componentsmust be maintained.
• Some strap-on type chains will interfere withbrake components and therefore CANNOTbe used.
• All Wheel Drive models
: Snow chains
should only be installed on the front wheels.
• Certain size tires may not allow the assemblyof snow chains/traction devices.
Consult your Volvo retailer for additional snow chain information.
CAUTION
• Snow chains should not be used on wheels larger than 19".
• Always follow the chain manufacturer'sinstallation instructions carefully. Installchains as tightly as possible andretighten periodically.
• Check local regulations regarding the useof snow chains before installing.
• Use single-sided snow chains only.
• Never exceed the chain manufacturer'sspecified maximum speed limit. (Underno circumstances should you exceed31 mph (50 km/h).
• Avoid bumps, holes or sharp turns whendriving with snow chains.
• The handling of the vehicle can beadversely affected when driving withchains. Avoid fast or sharp turns as wellas locked wheel braking.
Checking tire inflation pressure
Correct tire inflation pressure helps improve driv- ing stability, save fuel and increase the servicelife of the tires.
WARNING
• Under-inflation is the most common cause of tire failure and may result insevere tire cracking, tread separation, or"blow-out," with unexpected loss of vehi-cle control and increased risk of injury.
• Under-inflated tires reduce the load car-rying capacity of your vehicle.
Cold tiresInflation pressure should be checked when the tires are cold. The tires are considered to be cold when they have the same temperature as the sur-rounding (ambient) air. This temperature is normally reached after the vehicle has been parked for at least 3 hours. After driving a distance of approximately 1 mile (1.6 km), the tires are considered to be hot. If youhave to drive farther than this distance to pumpyour tire(s), check and record the tire pressurefirst and add the appropriate air pressure whenyou get to the pump. When weather temperature changes occur, tire inflation pressures also change. A 10-degree

WHEELS AND TIRES
* Option/accessory, for more information, see Introduction.477
WARNING
Current legislation prohibits the use of the "Temporary Spare" tire other than as a tem-porary replacement for a punctured tire. Itmust be replaced as soon as possible by astandard tire. Road holding and handling maybe affected with the "Temporary Spare" inuse. Do not exceed 50 mph (80 km/h).
CAUTION
The vehicle must not be driven with wheels of different dimensions or with a spare tire otherthan the one that came with the vehicle. Theuse of different size wheels can seriouslydamage your car's transmission.
CAUTION
The vehicle must never be driven with more than one temporary spare wheel.
The spare tire is located under the floor of the cargo compartment. A retaining bolt holds thespare tire and foam block containing tools inplace.
Accessing the spare tire1. Lift the rear edge of the cargo compartment
floor.
2. Unscrew the retaining bolt.
3. Lift out the foam block holding the tools. 4. Lift out the spare tire.
Related information
•
Changing tires (p. 475)
• Removing a wheel (p. 478)
• Wheel bolts (p. 477)
• Checking tire inflation pressure (p. 473)
Wheel bolts
The wheel bolts hold the wheel in place.
CAUTION
Wheel bolts should be tightened to 103 ft. lbs. (140 Nm). Over-tightening could damagethe threads.
Only use wheels/rims that have been tested and approved by Volvo and are included in Volvo'sproduct range. Use a torque wrench to checkthat the wheel bolts are tightened correctly.
Locking wheel bolts *A tool for removing locking wheel bolts can befound in the foam block under the cargo com-partment floor.
Related information
•Changing tires (p. 475)
• Installing a wheel (p. 479)

WHEELS AND TIRES
480
CAUTION
•After inflating the tires, always reinstall the valve cap to help avoid damage to thevalve from dirt, gravel, etc.
• Use plastic valve caps only. Metal capscould corrode and become difficult toremove.
Related information
• Wheel bolts (p. 477)
• Jack (p. 476)
Tire Pressure Monitoring System (TPMS) TPMS provides a warning if inflation pressure in one or more tires is too low. It also uses a sym-bol (called a telltale) that will flash for60 seconds and then glow steadily if there is asystem malfunction.
TPMS uses sensors mounted in the tire valves to check inflation pressure levels. When the vehicleis moving at a speed of approximately 20 mph(30 km/h) or faster, these sensors transmit infla-tion pressure data to a receiver located in thevehicle. If inflation pressure is too low, an indica-tor symbol will illuminate in the instrument paneland a text message will be displayed.
SymbolExplanation
The symbol illuminates to indicate low tire inflation pressure. If a malfunction occurs in the sys- tem, the tire pressure warning sym-bol will flash for approximately1 minute and then remain illumi-nated.
Each tire, including the spare (if provided), should be checked monthly when cold and inflated tothe inflation pressure recommended by the vehi-cle manufacturer on the vehicle placard or tireinflation pressure label. (If your vehicle has tires of a different size than the size indicated on thevehicle placard or tire inflation pressure label, youshould determine the proper tire inflation pres-sure for those tires.) As an added safety feature, your vehicle has been equipped with a tire pressure monitoringsystem (TPMS) that illuminates a low tire pres-sure telltale when one or more of your tires issignificantly under-inflated. Accordingly, when thelow tire pressure telltale illuminates, you shouldstop and check your tires as soon as possible,and inflate them to the proper pressure. Driving on a significantly under-inflated tire cau- ses the tire to overheat and can lead to tire fail-ure. Under-inflation also reduces fuel efficiencyand tire tread life, and may affect the vehicle'shandling and stopping ability. Please note thatthe TPMS is not a substitute for proper tire main-tenance, and it is the driver's responsibility tomaintain correct tire pressure, even if under-infla-tion has not reached the level to trigger illumina-tion of the TPMS low tire pressure telltale. Your vehicle has also been equipped with a TPMS malfunction indicator to indicate when thesystem is not operating properly. The TPMS mal-function indicator is combined with the low tirepressure telltale. When the system detects a malfunction, the tell- tale will flash for approximately one minute andthen remain continuously illuminated. Thissequence will continue upon subsequent vehicle

SPECIFICATIONS
538
DimensionIn.
(mm)
ITrack, rear (models with- out pneumatic suspen-sion)65.8 (1675) E
66.1 (1667) F
Track, rear (models with pneumatic suspension)66.1 (1679)
E
65.8 (1671) F
JLoad width, floor46.9 (1192)
KWidth75.7 (1923)
G
76.0 (1931) H
77.1 (1958) I
LWidth incl. door mirrors (folded out)84.3 (2140)
MWidth incl. door mirrors (folded in)79.1 (2008)
A
Varies slightly depending on tire size, chassis options, etc.
B 5-seat models.
C 7-seat models *.
D From the second row of seats in 7-seat models *.
E Models with 20, 21 and 22 in. wheels.
F Models with 18 and 19 in. wheels.
G Chassis width.
H Width on models with 18 and 19 in. wheels.
I Width on models with 20, 21 and 22 in. wheels.

SPECIFICATIONS
545
Tire inflation pressure table The following tire pressures are recommended by Volvo for your vehicle. Refer to the tire infla-tion placard for information specific to the tiresinstalled on your vehicle at the factory.
Tire sizeCold tire pressure for up to five persons
Front psi (kPa)Rear psi (kPa)
235/60 R18 235/55 R19275/45 R20275/40 R2136 (250)36 (250)
275/35 R2238 (260)38 (260)
Temporary spare tire T125/80 R1861 (420)61 (420)
Related information
•
Checking tire inflation pressure (p. 473)