tire type ALFA ROMEO STELVIO 2023 Owners Manual

13

TIRES ..................................................... 224
Tire Safety Information ....................... 224
Tires — General Information................ 230
Spare Tires — If Equipped ...................234
Wheel And Wheel Trim Care ..............235
Tire Types ............................................. 236
Tire Chains and Traction Devices .......236
Tire Rotation Recommendations ........237
DEPARTMENT OF TRANSPORTATION
UNIFORM TIRE QUALITY GRADES ....... 238
Treadwear ............................................ 238
Traction Grades ...................................238
Temperature Grades ...........................238
STORING THE VEHICLE ........................ 238
BODYWORK ........................................... 239
Protection Against Atmospheric
Agents ................................................... 239 Corrosion Warranty .............................. 239
Preserving The Bodywork ....................239
INTERIORS ............................................. 240
Seats And Fabric Parts ........................ 240
Leather Seats....................................... 241
Plastic And Coated Parts .....................241
Alcantara Parts — If Equipped.............241
Genuine Leather Parts ........................ 241
Carbon Fiber Parts ............................... 241
TECHNICAL SPECIFICATIONS
VEHICLE IDENTIFICATION
NUMBER (VIN) ....................................... 242
Vehicle Identification Number (VIN)
Plate ..................................................... 242
ENGINE .................................................. 242 POWER SUPPLY ..................................... 243
TRANSMISSION ..................................... 244
BRAKES .................................................. 244SUSPENSION ......................................... 245
STEERING .............................................. 245
DIMENSIONS ......................................... 246
Luggage Compartment Volume ......... 247
WEIGHTS ................................................ 248FUEL REQUIREMENTS........................... 249
Reformulated Gasoline ...................... 249
Gasoline/Oxygenate Blends ............... 249
CNG And LP Fuel System
Modifications ....................................... 250 MMT In Gasoline ................................. 250
Materials Added To Fuel ..................... 250
Fuel System Cautions ......................... 250
FLUID CAPACITIES ................................ 251
ENGINE FLUIDS AND LUBRICANTS ...... 252
CHASSIS FLUIDS AND LUBRICANTS ..... 253 PERFORMANCE ..................................... 254
CUSTOMER ASSISTANCE
SUGGESTIONS FOR OBTAINING
SERVICE FOR YOUR VEHICLE .............. 255
Prepare For The Appointment ............ 255
Prepare A List ...................................... 255
Be Reasonable With Requests ........... 255
IF YOU NEED ASSISTANCE .................... 255
Roadside Assistance ........................... 255
Alfa Romeo Customer Center ............. 256
Alfa Romeo Customer
Care (Canada) ...................................... 256 Customer Assistance For
The Hearing Or
Speech Impaired (TDD/TTY) ............... 256 Service Contract ................................. 257
WARRANTY INFORMATION ................... 257REPORTING SAFETY DEFECTS .............. 258
In The 50 United States And
Washington, D.C. ................................. 258 In Canada ............................................. 258
PUBLICATION ORDER FORMS .............. 258
GENERAL INFORMATION....................... 259
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61

VENTING SUNROOF
To bring the roof into vent position, push and
release the vent button.
This type of vent opening can be activated
regardless of the position of the sunroof. When
starting with the roof in the closed position,
pushing the vent button automatically causes the
sunroof to open to the vent position. If the roof is
already open, the button must be held until the
roof reaches the vent-opening position.
Pushing the vent button again during automatic
movement of the roof will stop it.
SUNSHADE OPERATION
The sunshade is power operated.
Push the Power Shade open/close button toward
the rear of the vehicle to open the sun shade.
Push the Power Shade open/close button toward
the front of the vehicle to close the sun shade.
The automatic motion can be interrupted in any
position by pushing the Power Shade open/close
button again.
PINCH PROTECT FEATURE
The sunroof has an anti-pinch safety system
capable of detecting the presence of an obstacle
during the closing movement. If an obstacle is
detected, the system intervenes and the
movement of the sunroof is immediately
reversed.
RE-INITIALIZATION PROCEDURE
Automatic operation of the sunroof must be
re-initialized in case of faulty sunroof operation. It
may also be necessary to re-initialize the sunroof
after the vehicle’s battery has been disconnected
and then reconnected.

NOTE:
The anti-pinch safety device is deactivated during
the re-initialization procedure.
Proceed as follows:
1. With the ignition in the ON/RUN position, make sure the sunroof glass is fully closed
(sunshade open).
2. Open the driver’s side door, and place the ignition in the OFF position.
3. Within five seconds, place the ignition in the ACC or ON/RUN position. 4. Within 10 seconds, push and hold the
sunroof close switch (forward). After 8 -
10 seconds of holding the switch, the
re-initialization process will begin. Continue
to hold the switch while the sunroof motor
cycles, and the sunshade will fully close.
5. Once the sunroof glass and the power sunshade have stopped motion, release the
sunroof close switch, then push and hold it
again within five seconds. Continue to hold
the switch while the sunshade fully opens,
the sunroof glass fully opens, followed by the
glass fully closing then the sunshade fully
closing.
6. Release the switch once all of the operations stop. Re-initialization of the sunroof motor is
now complete.

NOTE:
If the switch is released prior to full completion of
the operations described, the entire re-initializa -
tion procedure must be repeated from step 1.
7. Confirm express operations for the sunroof glass and sunshade are functional for
opening and closing operations.
SUNROOF MAINTENANCE
Use only a non-abrasive cleaner and a soft cloth
to clean the glass panel. Periodically check for
and clear out any debris that may have collected
in the tracks.
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GETTING TO KNOW YOUR INSTRUMENT PANEL

78

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 approxi-
mately 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.
GREEN INDICATOR LIGHTS
Automatic High Beam Indicator Light —
If Equipped
This indicator light will illuminate when
the automatic high beam headlights are
activated.
Left Turn Signal Indicator Light
The instrument cluster directional arrow
will flash independently for the left turn
signal as selected, as well as the
exterior turn signal lamp(s) (front and
rear) as selected when the multifunction lever is
moved down (left). This directional arrow will
flash in conjunction with the right directional
arrow when the hazard warning light button is
pushed.
Parking/Headlights On Indicator Light
This indicator will illuminate when
the parking lights or headlights are
turned on.
Right Turn Signal Indicator Light
The instrument cluster directional arrow
will flash independently for the right
turn signal as selected, as well as the
exterior turn signal lamp(s) (front and
rear) as selected when the multifunction lever is
moved up (right). This directional arrow will flash
in conjunction with the left directional arrow
when the hazard warning light button is pushed.
CAUTION!
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.
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STARTING AND OPERATING

130

REFUELING PROCEDURE
The fuel filler door is unlocked when the central
door locking system is unlocked. It is automat-
ically locked when the central locking system is
applied.
Opening The Fuel Filler Door
To refuel proceed as follows:
1. Open fuel filler door by pushing on the point shown by the arrow.
Fuel Door
Fuel Door Label The label indicates the fuel type
(UNLEADED FUEL = gasoline).
2. Remove the fuel filler cap.
3. Insert the fuel nozzle fully into the filler pipe.
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 the cap is properly
tightened.
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 emergency
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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133

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 information to tow
your load as efficiently and safely as possible.
To maintain the New Vehicle Limited Warranty
coverage, follow the requirements and
recommendations in this manual concerning
vehicles used for trailer towing.
COMMON TOWING DEFINITIONS
The following trailer towing related definitions will
assist you in understanding the following
information:
Gross Vehicle Weight Rating (GVWR)
The GVWR is the total allowable weight of your
vehicle. This includes driver, passengers, cargo
and tongue weight. The total load must be limited
so that you do not exceed the GVWR

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page 132.
Gross Trailer Weight (GTW)
The GTW is the weight of the trailer plus the
weight of all cargo, consumables, and equipment
(permanent or temporary) loaded in or on the
trailer in its "loaded and ready for operation"
condition.
The recommended way to measure GTW is to put
your fully loaded trailer on a vehicle scale. The
entire weight of the trailer must be supported by
the scale.
Gross Combination Weight Rating
(GCWR)
The GCWR is the total allowable weight of your
vehicle and trailer when weighed in combination.
Gross Axle Weight Rating (GAWR)
The GAWR is the maximum capacity of the front
and rear axles. Distribute the load over the front
and rear axles evenly. Make sure that you do not
exceed either front or rear GAWR

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page 132.
Tongue Weight (TW)
The tongue weight is the downward force exerted
on the hitch ball by the trailer. You must consider
this as part of the load on your vehicle.
Trailer Frontal Area
The frontal area is the maximum height multiplied
by the maximum width of the front of a trailer.
Weight-Carrying Hitch
A weight-carrying hitch supports the trailer tongue
weight, just as if it were luggage located at a hitch
ball or some other connecting point of the vehicle.
These kinds of hitches are the most popular on
the market today and they are commonly used to
tow small and medium sized trailers.
Weight-Distributing Hitch
A weight-distributing hitch system works by
applying leverage through spring (load) bars. They
are typically used for heavier loads to distribute
trailer tongue weight to the tow vehicle's front
axle and the trailer axle(s). When used in
accordance with the manufacturer's directions, it
provides for a more level ride, offering more
consistent steering and brake control thereby
enhancing towing safety. The addition of a
friction/hydraulic sway control also dampens
sway caused by traffic and crosswinds and
contributes positively to tow vehicle and trailer
stability. Trailer Sway Control and a
weight-distributing (load equalizing) hitch are
recommended for heavier Tongue Weights (TW)
and may be required depending on vehicle and
trailer configuration/loading to comply with Gross
Axle Weight Rating (GAWR) requirements.
WARNING!
It is important that you do not exceed the
maximum front or rear GAWR. A dangerous
driving condition can result if either rating is
exceeded. You could lose control of the vehicle
and have a collision.
WARNING!
An improperly adjusted weight-distributing
hitch system may reduce handling, stability,
braking performance, and could result in a
collision.
Weight-distributing hitch systems may not be
compatible with surge brake couplers.
Consult with the hitch and trailer
manufacturer or a reputable Recreational
Vehicle dealer for additional information.
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135

(Continued)
(Continued)
TRAILER AND TONGUE WEIGHT
Never exceed the maximum tongue weight
stamped on your fascia/bumper or trailer hitch.
Weight Distribution
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, addi -
tional 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 occupants and cargo for
your vehicle.
TOWING REQUIREMENTS
To promote proper break-in of your new vehicle
drivetrain components, the following guidelines
are recommended:
WARNING!
Always load a trailer with 60% of the weight in
the front of the trailer. This places 10% of the
GTW on the tow hitch of your vehicle. Loads
balanced over the wheels or heavier in the
rear can cause the trailer to sway severely side
to side which will cause loss of control of the
vehicle and trailer. Failure to load trailers
heavier in front is the cause of many
trailer collisions.
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.
Overloading can cause a loss of control, poor
performance, or damage to brakes, axle,
engine, transmission, steering, suspension,
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.
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.
WARNING!
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SAFETY

142

HILL DESCENT CONTROL (HDC)
S
YSTEM — 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.
HDC Speed SET Switch
Once the desired speed has been reached,
release the SET switch and the HDC system will
maintain the set speed. After set speed is
established, the HDC system will automatically
brake to keep the vehicle at the set speed if the
accelerator pedal is released and the vehicle gets
close to the set speed.
It is possible to reduce the set speed with the
brake pedal. When the pedal is released, the
system will adjust the set speed to the new
current speed.
Vehicle modifications, or failure to properly
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
performance. Improperly inflated and
unevenly worn tires may also degrade ESC
performance. 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.
WARNING!
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SAFETY

156

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 inflation
pressure of each tire, and inflate the necessary
tire or tires to the correct cold inflation 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.
To reactivate the TPMS, replace all four wheel
and tire assemblies (road tires) with tires
equipped with TPMS sensors. Then, drive the
vehicle for up to 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 turn off. The instrument cluster will
display the “SERVICE TPM SYSTEM” message
and then display pressure values in place of the
dashes. On the next ignition switch cycle the
“SERVICE TPM SYSTEM” message will no longer
be displayed, as long as no system fault exists.

NOTE:

The TPMS is not intended to replace normal
tire care and maintenance, or to provide
warning of a tire failure or condition.
The TPMS should not be used as a tire
pressure gauge while adjusting your tire
pressure.
CAUTION!
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. The TPMS
sensor is not designed for use on
aftermarket wheels and may contribute to a
poor overall system performance or sensor
damage. Customers are encouraged to use
Original Equipment Manufacturer (OEM)
wheels to ensure 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 pressure
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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199

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 conditions.
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 Scheduled
Servicing Plan (e.g. periodically check level of
fluids, tire pressure, etc.).
Scheduled Servicing is offered by an authorized
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 necessary;
for further information

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page 205.
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,
transmission, 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 predominately at idle
or only very low engine RPM. This type of vehicle
use is considered Severe Duty.
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SERVICING AND MAINTENANCE

230

TIRES — GENERAL INFORMATION
Tire Pressure
Proper tire inflation pressure is essential to the
safe and satisfactory operation of your vehicle.
Four primary areas are affected by improper
tire pressure:
Safety
Fuel Economy
Tread Wear
Ride Comfort and Vehicle Stability
Safety Both underinflation and overinflation affect the
stability of the vehicle and can produce a feeling
of sluggish response or over responsiveness 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 consumption.
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 comfortable
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 pressure 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.
WARNING!
Improperly inflated tires are dangerous and
can cause collisions.
Underinflation increases tire flexing and can
result in overheating and tire failure.
Overinflation reduces a tire's ability to
cushion shock. Objects on the road and
chuckholes can cause damage that result in
tire failure.
Overinflated or underinflated tires can affect
vehicle handling and can fail suddenly,
resulting in loss of vehicle control.
Unequal tire pressures can cause steering
problems. You could lose control of your
vehicle.
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.
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.
23_GU_OM_EN_USC_t.book Page 230