tire type ALFA ROMEO STELVIO 2021 Owners Manual

12

JUMP STARTING .................................... 201
Remote Battery Connection Posts......202
Jump Starting Procedure.....................203
Bump Starting ..................................204
ENGINE OVERHEATING ......................... 204 MANUAL PARK RELEASE ...................... 205TOWING A DISABLED VEHICLE ............. 205
Four-Wheel Drive (AWD) Models .........206
TOW EYES .............................................. 206
ENHANCED ACCIDENT RESPONSE
SYSTEM (EARS) ..................................... 207EVENT DATA RECORDER (EDR) ............ 207
SERVICING AND MAINTENANCE
SCHEDULED SERVICING ....................... 208
Periodic Checks ...................................208
Heavy Usage Of The Vehicle ...............208
Maintenance Plan (2.0L Engine) ........209
Maintenance Plan (2.9L Engine) ........212
ENGINE COMPARTMENT....................... 214
Checking Levels — 2.0L Engine .......... 214
Checking Levels — 2.9L Engine .......... 215
Engine Oil ............................................. 215
Engine Coolant Fluid............................216
Washer Fluid For Windshield/
Headlights ............................................ 217 Brake Fluid ...........................................217
Automatic Transmission Activation
System Oil ............................................ 217 Useful Advice For Extending The Life Of
Your Battery..........................................217 Battery ..................................................217
Pressure Washing ................................ 218
BATTERY RECHARGING ......................... 218
Important Notes .................................. 218
VEHICLE MAINTENANCE ........................ 219
Engine Oil ............................................. 219
Engine Oil Filter ................................... 220
Engine Air Cleaner Filter ..................... 220
Air Conditioning System
Maintenance........................................ 220 Lubricating Moving Parts Of The
Bodywork ............................................. 220 Windshield Wiper................................. 221
Exhaust System ................................... 222
Cooling System .................................... 223
Braking System.................................... 224
Automatic Transmission ..................... 225
Replacing The Battery ......................... 225
Fuses .................................................... 225
Bulb Replacement ............................... 229
TIRES ...................................................... 233
Tire Safety Information .................... 233
Tires — General Information .............. 239
Spare Tires — If Equipped .................. 244
Wheel And Wheel Trim Care ............ 245
Tire Types ............................................. 246
Tire Chains and Traction Devices ....... 247
Tire Rotation Recommendations........ 247
DEPARTMENT OF TRANSPORTATION
UNIFORM TIRE QUALITY GRADES ......... 248
Treadwear ............................................ 248
Traction Grades ................................... 248
Temperature Grades ........................... 248
STORING THE VEHICLE ......................... 249 BODYWORK ........................................... 249
Protection Against Atmospheric
Agents .................................................. 249 Corrosion Warranty ............................. 250
Preserving The Bodywork .................. 250
INTERIORS ............................................. 251
Seats And Fabric Parts ....................... 251
Leather Seats ...................................... 251
Plastic And Coated Parts .................... 251
Alcantara Parts — If Equipped ............ 251
Genuine Leather Parts........................ 251
Carbon Fiber Parts .............................. 252
TECHNICAL SPECIFICATIONS
VEHICLE IDENTIFICATION
NUMBER (VIN) ....................................... 253
Vehicle Identification Number............ 253
Vehicle Identification Number
(VIN) Plate ............................................ 253
ENGINE .................................................. 254
POWER SUPPLY ..................................... 255 TRANSMISSION ..................................... 255BRAKES.................................................. 255
SUSPENSION ......................................... 256
STEERING .............................................. 256
DIMENSIONS ......................................... 257
Luggage Compartment Volume ......... 259
WEIGHTS ................................................ 259
21_GU_OM_EN_USC_t.book Page 12

77

also reduces fuel efficiency and tire tread life,
and may affect the vehicle’s handling and
stopping ability.
Please note that the TPMS is not a substitute
for proper tire maintenance, and it is the
driver’s responsibility to maintain correct tire
pressure, even if under inflation has not
reached the level to trigger illumination of the
TPMS low tire pressure telltale.
Your vehicle has also been equipped with a
TPMS malfunction indicator to indicate when
the system is not operating properly. The
TPMS malfunction indicator is combined with
the low tire pressure telltale. When the system
detects a malfunction, the telltale will flash for
approximately one minute and then remain
continuously illuminated. This sequence will
continue upon subsequent vehicle start-ups
as long as the malfunction exists. When the
malfunction indicator is illuminated, the
system may not be able to detect or signal low
tire pressure as intended. TPMS malfunctions
may occur for a variety of reasons, including
the installation of replacement or alternate
tires or wheels on the vehicle that prevent the
TPMS from functioning properly. Always check
the TPMS malfunction telltale after replacing
one or more tires or wheels on your vehicle to
ensure that the replacement or alternate tires
and wheels allow the TPMS to continue to
function properly.
Rear Fog Lights
The indicator illuminates when the
rear fog light is activated.
Engine Check/Malfunction Indicator Light
(MIL)
In normal conditions, when the igni-
tion is cycled to ON, the indicator
light illuminates, but it should turn
off as soon as the engine is started.
The operation of the indicator light may be
checked by the traffic police using specific
devices. Comply with the laws and regulations
of the country where you are driving. Under these conditions, the vehicle can
continue traveling at moderate speed but
without demanding excessive effort from the
engine or high speed. Prolonged use of the
vehicle with the indicator light on constantly
may cause damage. Contact an authorized
dealer as soon as possible.
Forward Collision Warning (FCW) System
This indicator light informs the driver
that the frontal collision alarm func
-
tion is not enabled.
Drive carefully and contact an authorized
dealer as soon as possible.
Fuel Reserve/Limited Range
The indicator light (or the symbol in
the display) illuminates when about
2.4 gallons (9 liters) of fuel is left in
the tank.
WARNING!
The TPMS has been optimized for the
original equipment tires and wheels. TPMS
pressures and warning have been
established for the tire size equipped on
your vehicle. Undesirable system operation
or sensor damage may result when using
replacement equipment that is not of the
same size, type, and/or style. Aftermarket
wheels can cause sensor damage. Using
aftermarket tire sealants may cause the
Tire Pressure Monitoring System (TPMS)
sensor to become inoperable. After using
an aftermarket tire sealant it is
recommended that you take your vehicle to
an authorized dealership to have your
sensor function checked.
CAUTION!
If, turning the ignition device to ON, the
warning light does not turn on or if it
turns on steadily or flashing when traveling
(on some versions together with the
message on the display), contact an
authorized dealer as soon as possible.
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STARTING AND OPERATING

134

4. When the fuel nozzle “clicks” or shuts off,before removing the nozzle, wait for at
least 10 seconds in order for the fuel to
flow inside the tank.
5. Remove the fuel filler nozzle, tighten the gas cap about ¼ turn until you hear one
click. This is an indication that cap is prop-
erly tightened.
The label indicates the fuel type (UNLEAD -
ED FUEL = gasoline).
Fuel Door Label Emergency Fuel Door Opening
In the event of an emergency, the fuel filler
door can be opened from inside the liftgate.
Proceed as follows:
Models With Compact Spare Tire
1. Open the liftgate and lift up the load floor.
Load Floor
2. Unlock the locking device and remove the compact spare tire to reach the emer -
gency opening cable on the side of the fuel
door. Cargo Area
3. Pull the cable to release the fuel door lock.
Release Cable
4. Open the fuel door by pushing it.
1 — Locking Device
1 — Release Cable
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136

Gross Vehicle Weight Rating (GVWR)
The GVWR is the total permissible weight of
your vehicle including driver, passengers,
vehicle, options and cargo. The label also
specifies maximum capacities of front and
rear axle systems (GAWR). Total load must be
limited so GVWR and front and rear GAWR are
not exceeded.
Payload
The payload of a vehicle is defined as the
allowable load weight a truck can carry,
including the weight of the driver, all passen-
gers, options and cargo.
Gross Axle Weight Rating (GAWR)
The GAWR is the maximum permissible load
on the front and rear axles. The load must be
distributed in the cargo area so that the GAWR
of each axle is not exceeded.
Each axle GAWR is determined by the compo -
nents in the system with the lowest load
carrying capacity (axle, springs, tires or
wheels). Heavier axles or suspension compo -
nents sometimes specified by purchasers for
increased durability do not necessarily
increase the vehicle's GVWR.
Tire Size
The tire size on the Vehicle Certification Label
represents the actual tire size on your vehicle.
Replacement tires must be equal to the load
capacity of this tire size.
Rim Size
This is the rim size that is appropriate for the
tire size listed.
Inflation Pressure
This is the cold tire inflation pressure for your
vehicle for all loading conditions up to full
GAWR.
Curb Weight
The curb weight of a vehicle is defined as the
total weight of the vehicle with all fluids,
including vehicle fuel, at full capacity condi -
tions, and with no occupants or cargo loaded
into the vehicle. The front and rear curb weight
values are determined by weighing your
vehicle on a commercial scale before any
occupants or cargo are added.
Loading
The actual total weight and the weight of the
front and rear of your vehicle at the ground can
best be determined by weighing it when it is
loaded and ready for operation.
The entire vehicle should first be weighed on a
commercial scale to ensure that the GVWR
has not been exceeded. The weight on the
front and rear of the vehicle should then be
determined separately to be sure that the load
is properly distributed over the front and rear
axle. Weighing the vehicle may show that the
GAWR of either the front or rear axles has
been exceeded but the total load is within the specified GVWR. If so, weight must be shifted
from front to rear or rear to front as appro
-
priate until the specified weight limitations are
met. Store the heavier items down low and be
sure that the weight is distributed equally.
Stow all loose items securely before driving.
Improper weight distributions can have an
adverse effect on the way your vehicle steers
and handles and the way the brakes operate.
TRAILER TOWING
In this section you will find safety tips and
information on limits to the type of towing you
can reasonably do with your vehicle. Before
towing a trailer, carefully review this informa -
tion to tow your load as efficiently and safely
as possible.
To maintain the New Vehicle Limited Warranty
coverage, follow the requirements and recom -
mendations in this manual concerning vehi -
cles used for trailer towing.
CAUTION!
Do not load your vehicle any heavier than
the GVWR or the maximum front and rear
GAWR. If you do, parts on your vehicle can
break, or it can change the way your vehicle
handles. This could cause you to lose
control. Also overloading can shorten the
life of your vehicle.
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139
(Continued)
Consider the following items when computing
the weight on the rear axle of the vehicle:
The tongue weight of the trailer.
The weight of any other type of cargo or
equipment put in or on your vehicle.
The weight of the driver and all passengers.

NOTE:

Remember that everything put into or on the
trailer adds to the load on your vehicle. Also,
additional factory-installed options or
dealer-installed options must be considered
as part of the total load on your vehicle. Refer
to the “Tire And Loading Information” placard
for the maximum combined weight of occu -
pants and cargo for your vehicle.
Towing Requirements
To promote proper break-in of your new
vehicle drivetrain components, the following
guidelines are recommended:
Towing Requirements — Tires
Do not attempt to tow a trailer while using a
compact spare tire.
Do not drive more than 50 mph (80 km/h)
when towing while using a full size spare
tire.
Proper tire inflation pressures are essential
to the safe and satisfactory operation of
your vehicle.
Check the trailer tires for proper tire infla -
tion pressures before trailer usage.
Check for signs of tire wear or visible tire
damage before towing a trailer.
Replacing tires with a higher load carrying
capacity will not increase the vehicle's
GVWR and GAWR limits.
For proper tire inflation procedures

Ú
page 233.
WARNING!
Improper towing can lead to a collision.
Follow these guidelines to make your trailer
towing as safe as possible:
Make certain that the load is secured in
the trailer and that it will not shift during
travel. When trailering cargo that is not
fully secured, dynamic load shifts can
occur that may be difficult for the driver to
control. You could lose control of your
vehicle and have a collision.
When hauling cargo, or towing a trailer, do
not overload your vehicle or trailer. Over -
loading can cause a loss of control, poor
performance, or damage to brakes, axle,
engine, transmission, steering, suspen -
sion, chassis structure, or tires.
Safety chains must always be used
between your vehicle and trailer. Always
connect the chains to the frame or hook
retainers of the vehicle hitch. Cross the
chains under the trailer tongue and allow
enough slack for turning corners.
Vehicles with trailers should not be parked
on a grade. When parking, apply the
parking brake on the tow vehicle. Put the
tow vehicle transmission in PARK. Always
block or "chock" the trailer wheels.
GCWR must not be exceeded.
Total weight must be distributed between
the tow vehicle and the trailer such that
the following four ratings are not
exceeded:
• GVWR
• GTW
• GAWR
• Tongue weight rating for the trailer
hitch utilized.
WARNING! (Continued) CAUTION!
Do not tow a trailer at all during the first
500 miles (805 km) the new vehicle is
driven. The engine, axle or other parts
could be damaged.
Then, during the first 500 miles (805 km)
that a trailer is towed, do not drive over
50 mph (80 km/h) and do not make
starts at full throttle. This helps the engine
and other parts of the vehicle wear in at
the heavier loads.
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147

Hill Descent Control (HDC) System — If
Equipped
The HDC function is an integral part of the
Electronic Stability Control (ESC) system,
keeping the vehicle at a constant speed while
descending a hill by actively controlling the
brakes.
HDC aims to create vehicle stability and safer
driving in various situations, including poor
grip conditions and steep descents.
The system has three different modes:
Off: the system is deactivated
Enabled: the system is enabled and ready to
intervene when the activation conditions
are met
Active: the system actively controls the
vehicle speed
Enabling The System
To enable the system, push the HDC switch
located on the steering wheel.
HDC Switch The system is enabled if the car speed is below
20 mph (30 km/h). The system stays enabled
until the car speed reaches 37 mph (60 km/h),
the system is disabled at speeds above 37 mph
(60 km/h).
Activation of the HDC system is indicated by
the white icon appearing in the instrument
cluster display.
HDC Symbol
Activation Of The System
Once enabled, the HDC system will activate
automatically if the vehicle is driven on a
downhill slope with sufficient gradient, greater
than 8%.
The speed set for the HDC system can be
adjusted using the SET switch located on the
steering wheel.
WARNING!
Electronic Stability Control (ESC) cannot
prevent the natural laws of physics from
acting on the vehicle, nor can it increase
the traction afforded by prevailing road
conditions. ESC cannot prevent accidents,
including those resulting from excessive
speed in turns, driving on very slippery
surfaces, or hydroplaning. ESC also
cannot prevent accidents resulting from
loss of vehicle control due to inappro -
priate driver input for the conditions. Only
a safe, attentive, and skillful driver can
prevent accidents. The capabilities of an
ESC equipped vehicle must never be
exploited in a reckless or dangerous
manner which could jeopardize the user’s
safety or the safety of others.
Vehicle modifications, or failure to prop -
erly maintain your vehicle, may change
the handling characteristics of your
vehicle, and may negatively affect the
performance of the ESC system. Changes
to the steering system, suspension,
braking system, tire type and size or wheel
size may adversely affect ESC perfor-
mance. Improperly inflated and unevenly
worn tires may also degrade ESC perfor -
mance. Any vehicle modification or poor
vehicle maintenance that reduces the
effectiveness of the ESC system can
increase the risk of loss of vehicle control,
vehicle rollover, personal injury and death.
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SAFETY

162

will turn off only after the tires are inflated to the
vehicle’s recommended cold placard pressure
value.Insufficient Tire Pressure Indication
If an insufficient pressure value is detected on
one or more tires, the warning light in the
instrument cluster will display alongside the
dedicated messages, the system will highlight
the tire or tires with insufficient pressure
graphically, and an acoustic signal will be
emitted.
In this case, stop the vehicle, check the infla
-
tion pressure of each tire, and inflate the
necessary tire or tires to the correct cold infla -
tion pressure value, shown on the display or in
the dedicated TPMS menu.
TPMS Temporarily Disabled:
TPMS Check Message

When a system fault is detected, the TPMS
Warning Light will flash on and off for 75 seconds,
and then remain on solid. The system fault will
also sound a chime. If the ignition is cycled, this
sequence will repeat, provided that the system
fault still exists. The TPMS Warning Light will turn
off when the fault condition no longer exists. A
system fault can occur due to any of the
following:

Jamming due to electronic devices or
driving next to facilities emitting the same
radio frequencies as the TPMS sensors.
Installing some form of aftermarket window
tinting that affects radio wave signals.
Packed snow or ice around the wheels or
wheel housings.
Using tire chains on the vehicle.
Using wheels/tires not equipped with TPMS
sensors.
After the punctured tire has been repaired
with the original tire sealant contained in the
Tire Kit, the previous condition must be
restored so that the warning light is off
during normal driving.
TPMS Deactivation
The TPMS can be deactivated by replacing all
four wheel and tire assemblies (road tires)
with wheel and tire assemblies that do not
have TPMS sensors, such as when installing
winter wheel and tire assemblies on your
vehicle.

To deactivate the TPMS, first replace all four
wheel and tire assemblies (road tires) with tires
not equipped with Tire Pressure Monitoring
System (TPMS) sensors. Then, drive the vehicle
for 20 minutes above 15 mph (24 km/h). The
TPMS will chime, the TPMS Warning Light will
flash on and off for 75 seconds and then
remain on. The instrument cluster will display
the “SERVICE TPM SYSTEM” message and then
display dashes (--) in place of the pressure
values.

Beginning with the next ignition switch cycle,
the TPMS will no longer chime or display the
“SERVICE TPM SYSTEM” message in the
instrument cluster. Instead, dashes (--) will
remain in place of the pressure values.
CAUTION!
The TPMS has been optimized for the orig -
inal equipment tires and wheels. TPMS
pressures and warning have been estab -
lished for the tire size equipped on your
vehicle. Undesirable system operation or
sensor damage may result when using
replacement equipment that is not of the
same size, type, and/or style. The TPMS
sensor is not designed for use on after -
market wheels and may contribute to a
poor overall system performance or
sensor damage. Customers are encour -
aged to use OEM wheels to assure proper
TPMS feature operation.
Using aftermarket tire sealants may cause
the Tire Pressure Monitoring System
(TPMS) sensor to become inoperable.
After using an aftermarket tire sealant it is
recommended that you take your vehicle
to an authorized dealer to have your
sensor function checked.
After inspecting or adjusting the tire pres -
sure always reinstall the valve stem cap.
This will prevent moisture and dirt from
entering the valve stem, which could
damage the TPMS sensor.
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195

(Continued)
Frequently Asked Questions:
What happens if I accidentally push the SOS -
Emergency Call Button? You have 10 seconds
after pushing the emergency button to cancel
the call. To cancel the call, push the button
again.
What type of information is sent when I make
an SOS - Emergency Call from my vehicle?
Certain vehicle information, such as the VIN, is
transmitted along with last known GPS loca-
tion. Also note that emergency service opera -
tors may record conversations and sounds
within your vehicle once a connection is made,
and by using the service you consent to having
this information shared.
When can I use the SOS - Emergency
Call button? You can ONLY use the
SOS - Emergency Call button to
make a call if you or someone else
needs emergency assistance.
JACKING AND TIRE CHANGING
General Instructions
This vehicle can be equipped with a Tire
Service Kit
Ú
page 198.
As an alternative to the Tire Service Kit, the
vehicle may be purchased with a compact
spare tire
Ú
page 196.
Jack Information And Usage Precautions
Jack Information
The jack weighs 4.4 lb (2 kg).
The jack requires no adjustment.
The jack cannot be repaired, and in the
event of a fault it must be replaced by
another factory replacement.
No tool other than its extension lever may
be fitted on the jack.
Jack Maintenance
Prevent any dirt from depositing on the
"worm screw".
Keep the "worm screw" lubricated.
Never modify the jack.
Conditions Of Non-Use Of The Jack
Temperatures below −40°F (−40°C).
On sandy or muddy ground
On uneven ground
On steep slopes in extreme weather condi -
tions.
In direct contact with the engine or for
repairs under the vehicle
On boats
WARNING!
Do not attempt to change a tire on the
side of the vehicle close to moving traffic.
Pull far enough off the road to avoid the
danger of being hit when operating the
jack or changing the wheel.
Being under a jacked-up vehicle is
dangerous. The vehicle could slip off the
jack and fall on you. You could be crushed.
Never put any part of your body under a
vehicle that is on a jack. If you need to get
under a raised vehicle, take it to a service
center where it can be raised on a lift.
Never start or run the engine while the
vehicle is on a jack.
The jack is designed to be used as a tool
for changing tires only. The jack should
not be used to lift the vehicle for service
purposes. The vehicle should be jacked on
a firm level surface only. Avoid ice or slip -
pery areas.
WARNING! (Continued)
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208

SERVICING AND MAINTENANCE
Correct servicing permits the performance of
the vehicle to be maintained over time, as well
as limited running costs and safeguarding the
efficiency of the safety systems.
SCHEDULED SERVICING
Correct servicing is crucial for guaranteeing a
long life for the vehicle under the best condi-
tions.
For this reason, Alfa Romeo has planned a
series of checks and services for your vehicle
at fixed intervals based on distance and time,
as described in the Scheduled Servicing Plan.
Before each service, it is always necessary to
carefully follow the instructions in the Sched -
uled Servicing Plan (e.g. periodically check
level of fluids, tire pressure, etc.).
Scheduled Servicing is offered by an autho -
rized dealer according to a set time schedule.
If, during each operation, in addition to the
ones scheduled, the need arises for further
replacements or repairs, these may be carried
out with the owner’s explicit consent only.

NOTE:

Scheduled Servicing intervals are required by
the manufacturer. Failure to have them
carried out may invalidate the New Vehicle
Limited Warranty.
You are advised to inform an authorized
dealer of any small operating irregularities
without waiting for the next service.
Periodic Checks
Every month or every 620 miles (1,000 km) or
before long trips check and, if necessary, top
off:
Engine coolant level.
Brake fluid level (if insufficient, see an
authorized dealer as soon as possible).
Windshield washer fluid level.
Tire inflation pressure and condition.
Operation of lighting system (headlights,
direction indicators, hazard warning lights,
etc.).
Operation of windshield washing/wiping
system and positioning/wear of wiper
blades.
Inspect the CV/Universal joints.
Oil consumption of the engine depends on
conditions and driving style. For this reason,
the engine oil level must be checked every
1,860 miles (3,000 km), and top off if neces -
sary; for further information
Ú
page 215.
Heavy Usage Of The Vehicle
If the vehicle is used under one of the following
conditions:
Dusty roads.
Short, repeated journeys less than 4 miles
(7 km) at sub-zero outside temperatures.
Engine often idling or driving long distances
at low speeds or long periods of inactivity.
In the event of a long period of inactivity.
The following checks must be carried out more
often than indicated in the Scheduled
Servicing Plan:
Check cleanliness of hood and liftgate
locks, cleanliness and lubrication of
linkage.
Visually inspect conditions of: engine, trans -
mission, pipes and hoses (exhaust/fuel
system/brakes) and rubber elements
(sleeves/bushes, etc.).
Check battery charge and battery fluid level
(electrolyte).
Visually inspect conditions of the accessory
drive belts.
Check and, if necessary, change engine oil
and replace oil filter.
Check and, if necessary, replace cabin air
filter.
Check and, if necessary, replace air cleaner.
Severe Duty All Models
Change engine oil at 4,000 miles (6,500 km)
if the vehicle is operated in a dusty and
off-road environment or is operated predomi -
nately at idle or only very low engine RPM. This
type of vehicle use is considered Severe Duty.
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240

Both underinflation and overinflation affect
the stability of the vehicle and can produce a
feeling of sluggish response or over respon-
siveness in the steering.

NOTE:

Unequal tire pressures from side to side
may cause erratic and unpredictable
steering response.
Unequal tire pressure from side to side may
cause the vehicle to drift left or right.
Fuel Economy
Underinflated tires will increase tire rolling
resistance resulting in higher fuel consump -
tion.
Tread Wear
Improper cold tire inflation pressures can
cause abnormal wear patterns and reduced
tread life, resulting in the need for earlier tire
replacement. Ride Comfort And Vehicle Stability
Proper tire inflation contributes to a comfort
-
able ride. Overinflation produces a jarring and
uncomfortable ride.
Tire Inflation Pressures
The proper cold tire inflation pressure is listed
on the driver's side B-pillar or rear edge of the
driver's side door.
At least once a month:
Check and adjust tire pressure with a good
quality pocket-type pressure gauge. Do not
make a visual judgement when determining
proper inflation. Tires may look properly
inflated even when they are underinflated.
Inspect tires for signs of tire wear or visible
damage.
Inflation pressures specified on the placard
are always “cold tire inflation pressure”. Cold
tire inflation pressure is defined as the tire
pressure after the vehicle has not been driven
for at least three hours, or driven less than
1 mile (1.6 km) after sitting for a minimum of
three hours. The cold tire inflation pressure must not exceed the maximum inflation pres
-
sure molded into the tire sidewall.
Check tire pressures more often if subject to a
wide range of outdoor temperatures, as tire
pressures vary with temperature changes.
Tire pressures change by approximately 1 psi
(7 kPa) per 12°F (7°C) of air temperature
change. Keep this in mind when checking tire
pressure inside a garage, especially in the
Winter.
Example: If garage temperature = 68°F
(20°C) and the outside temperature = 32°F
(0°C) then the cold tire inflation pressure
should be increased by 3 psi (21 kPa), which
equals 1 psi (7 kPa) for every 12°F (7°C) for
this outside temperature condition.
Tire pressure may increase from 2 to 6 psi
(13 to 40 kPa) during operation. DO NOT
reduce this normal pressure build up or your
tire pressure will be too low.
Tire Pressures For High Speed Operation
The manufacturer advocates driving at safe
speeds and within posted speed limits. Where
speed limits or conditions are such that the
vehicle can be driven at high speeds, main -
taining correct tire inflation pressure is very
important. Increased tire pressure and
reduced vehicle loading may be required for
high-speed vehicle operation. Refer to an
authorized tire dealer or original equipment
vehicle dealer for recommended safe oper -
ating speeds, loading and cold tire inflation
pressures.
Unequal tire pressures from one side of
the vehicle to the other can cause the
vehicle to drift to the right or left.
Always drive with each tire inflated to the
recommended cold tire inflation pressure.
WARNING! (Continued)
CAUTION!
After inspecting or adjusting the tire
pressure, always reinstall the valve stem
cap. This will prevent moisture and dirt from
entering the valve stem, which could
damage the valve stem.
21_GU_OM_EN_USC_t.book Page 240