tire pressure RAM PROMASTER 2021 Owner's Manual

IN CASE OF EMERGENCY201

Check that the Mode Select Knob (2) is in
the Sealant Mode position and not Air
Mode. Push the Power Button (1) to turn
On the Tire Service Kit.

2. Connect the Power Plug (7) to a different 12 Volt power outlet in your vehicle or
another vehicle, if available. Make sure the
engine is running before turning ON the Tire
Service Kit.
3. The Sealant Bottle (4) may be empty due to previous use. Call for assistance.
NOTE:
If the Mode Select Knob (2) is on Air Mode and
the pump is operating, air will dispense from
the Air Pump Hose (5) only, not the Sealant
Hose (3).
If the sealant (white fluid) does flow through the
Sealant Hose (3):

1. Continue to operate the pump until sealant is no longer flowing through the hose
(typically takes 30 - 70 seconds). As the
sealant flows through the Sealant Hose (3),
the Pressure Gauge (8) can read as high as
70 psi (4.8 Bar). The Pressure Gauge (8) will decrease quickly from approximately
70 psi (4.8 Bar) to the actual tire pressure
when the Sealant Bottle (4) is empty.

2. The pump will start to inject air into the tire immediately after the Sealant Bottle (4) is
empty. Continue to operate the pump and
inflate the tire to the pressure indicated on
the tire pressure label on the driver-side
latch pillar (recommended pressure). Check
the tire pressure by looking at the Pressure
Gauge (8).
If the tire does not inflate to at least 26 psi (1.8
Bar) pressure within 15 minutes:
The tire is too badly damaged. Do not attempt
to drive the vehicle further. Call for assis -
tance.
NOTE:
If the tire becomes overinflated, push the
Deflation Button to reduce the tire pressure to
the recommended inflation pressure before
continuing. If the tire inflates to the recommended pressure
or is at least 26 psi (1.8 Bar) pressure within
15 minutes:

1. Push the Power Button (1) to turn off the
Tire Service Kit.

2. Remove the Speed Limit sticker from the top of the Sealant Bottle (4) and place the
sticker on the instrument panel.
3. Immediately disconnect the Sealant Hose (3) from the valve stem, reinstall the cap on
the fitting at the end of the hose, and place
the Tire Service Kit in the vehicle storage
location.
CAUTION!
The metal end fitting from Power Plug (8)
may get hot after use, so it should be
handled carefully.
Failure to reinstall the cap on the fitting at
the end of the Sealant Hose (6) can result
in sealant contacting your skin, clothing,
and the vehicle’s interior. It can also result
in sealant contacting internal Tire Service
Kit components which may cause perma -
nent damage to the kit.
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202IN CASE OF EMERGENCY
(D) Drive Vehicle:
Immediately after injecting sealant and inflating
the tire, drive the vehicle 5 miles (8 km) or ten
minutes to ensure distribution of the Tire
Service Kit Sealant within the tire. Do not
exceed 50 mph (80 km/h).
(E) After Driving:
Pull over to a safe location Ú page 200.

1. Push in the Mode Select Knob (2) and turn to the Air Mode position.

2. Uncoil the power plug and insert the plug into the vehicle's 12 Volt power outlet. 3. Uncoil the Air Pump Hose (5) (black in color)
and screw the fitting at the end of hose onto
the valve stem.
4. Check the pressure in the tire by reading the Pressure Gauge (8).
If tire pressure is less than 19 psi (1.3 Bar):
The tire is too badly damaged. Do not attempt to
drive the vehicle further. Call for assistance.
If the tire pressure is 19 psi (1.3 Bar) or higher:

1. Push the Power Button (1) to turn on Tire Service Kit and inflate the tire to the
pressure indicated on the tire and loading
information label on the driver-side door
opening.

NOTE:
If the tire becomes overinflated, push the Defla-
tion Button to reduce the tire pressure to the
recommended inflation pressure before
continuing.
2. Disconnect the Tire Service Kit from the valve stem, reinstall the cap on the valve
stem and unplug from 12 Volt outlet.
3. Place the Tire Service Kit in its proper storage area in the vehicle. 4. Have the tire inspected and repaired or
replaced at the earliest opportunity at an
authorized dealer or tire service center.
5. Remove the Speed Limit sticker from the instrument panel after the tire has been
repaired.
6. Replace the Sealant Bottle (4) and Sealant Hose (3) assembly at an authorized dealer
as soon as possible Ú page 202.
NOTE:
When having the tire serviced, advise the autho -
rized dealer or service center that the tire has
been sealed using the Tire Service Kit.
(F) Sealant Bottle And Hose Replacement:

1. Uncoil the Sealant Hose (3) (clear in color).

2. Locate the red colored round Sealant Bottle release button at the lower right hand
corner of the kit.
3. Push and hold the Sealant Bottle release button, then pull out the bottle holding the
button.
4. Clean any remaining sealant from the Tire Service Kit housing.
WARNING!
Tire Service Kit is not a permanent flat tire
repair. Have the tire inspected and repaired
or replaced after using Tire Service Kit. Do
not exceed 50 mph (80 km/h) until the tire is
repaired or replaced. Failure to follow this
warning can result in injuries that are serious
or fatal to you, your passengers, and others
around you.

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208IN CASE OF EMERGENCY
FREEING A STUCK VEHICLE
If your vehicle becomes stuck in mud, sand, or
snow, it can often be moved using a rocking
motion. Turn the steering wheel right and left to
clear the area around the front wheels. Shift
back and forth between DRIVE (D) and
REVERSE (R), while gently pressing the
accelerator. Use the least amount of
accelerator pedal pressure that will maintain
the rocking motion, without spinning the wheels
or racing the engine. NOTE:
Push the “ESC OFF” switch, to place the
Electronic Stability Control System (ESC) in
“Partial OFF” mode, before rocking the vehicle
Ú
page 150. Once the vehicle has been freed,
push the “ESC OFF” switch again to restore
“ESC ON” mode.
CAUTION!
Racing the engine or spinning the wheels may
lead to transmission overheating and failure.
Allow the engine to idle with the transmission
in NEUTRAL for at least one minute after
every five rocking-motion cycles. This will
minimize overheating and reduce the risk of
transmission failure during prolonged efforts
to free a stuck vehicle.
WARNING!
Fast spinning tires can be dangerous. Forces
generated by excessive wheel speeds may
cause damage, or even failure, of the axle
and tires. A tire could explode and injure
someone. Do not spin your vehicle's wheels
faster than 30 mph (48 km/h) or for longer than 30 seconds continuously without
stopping when you are stuck and do not let
anyone near a spinning wheel, no matter
what the speed.
CAUTION!
When “rocking” a stuck vehicle by shifting
between DRIVE and REVERSE, do not spin
the wheels faster than 15 mph (24 km/h), or drivetrain damage may result.
Spinning the wheels too fast may lead to
transmission overheating and failure. It can
also damage the tires. Do not spin the
wheels above 30 mph (48 km/h) while in
gear (no transmission shifting occurring).

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211
SERVICING AND MAINTENANCE
SCHEDULED SERVICING
Your vehicle is equipped with an automatic oil
change indicator system. The oil change
indicator system will remind you that it is time to
take your vehicle in for scheduled maintenance.

Based on engine operation conditions, the oil
change indicator message will illuminate in the
instrument cluster. This means that service is
required for your vehicle. Operating conditions
such as frequent short-trips, trailer tow, and
extremely hot or cold ambient temperatures will
influence when the “Oil Change Required”
message is displayed. Severe Operating
Conditions can cause the change oil message to
illuminate as early as 3,500 miles (5,600 km)
since last reset. Have the vehicle serviced as
soon as possible, within the next 500 miles
(805 km).
An authorized dealer will reset the oil change
indicator message after completing the
scheduled oil change. If a scheduled oil change
is performed by someone other than an
authorized dealer, the message can be reset by
referring to the steps described under
Instrument Cluster Display Ú
page 45.
NOTE:
Under no circumstances should oil change
intervals exceed 10,000 miles (16,000 km),
12 months or 350 hours of engine run time,
whichever comes first. The 350 hours of engine
run or idle time is generally only a concern for
fleet customers. Severe Duty All Models

Vehicles that are operated in a dusty and off-road
environment, or predominately at idle or very low
engine RPM are known as Severe Duty vehicles.
It is recommended that you change the engine oil
at 4,000 miles (6,500 km) or 350 hours of
engine run time.

Once A Month Or Before A Long Trip:
Check engine oil level
Check windshield washer fluid level
Check the tire pressures and look for unusual
wear or damage. Rotate at the first sign of
irregular wear, even if it occurs before the oil
indicator system turns on
Check the fluid levels of the coolant reservoir,
brake master cylinder, and power steering
and fill as needed
Check function of all interior and exterior
lights
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240SERVICING AND MAINTENANCE
TIRES
TIRE SAFETY INFORMATION
Tire safety information will cover aspects of the
following information: Tire Markings, Tire
Identification Numbers, Tire Terminology and
Definitions, Tire Pressures, and Tire Loading.
Tire Markings

Tire Markings

NOTE:

P (Passenger) — Metric tire sizing is based
on US design standards. P-Metric tires have
the letter “P” molded into the sidewall
preceding the size designation.
Example: P215/65R15 95H.

European — Metric tire sizing is based on
European design standards. Tires designed
to this standard have the tire size molded
into the sidewall beginning with the section
width. The letter "P" is absent from this tire
size designation. Example: 215/65R15 96H.
LT (Light Truck) — Metric tire sizing is based
on US design standards. The size designation
for LT-Metric tires is the same as for P-Metric
tires except for the letters “LT” that are
molded into the sidewall preceding the size
designation. Example: LT235/85R16.
Temporary spare tires are designed for
temporary emergency use only. Temporary
high pressure compact spare tires have the
letter “T” or “S” molded into the sidewall
preceding the size designation.
Example: T145/80D18 103M.
High flotation tire sizing is based on US
design standards and it begins with the tire
diameter molded into the sidewall.
Example: 31x10.5 R15 LT.

1 — US DOT Safety Standards Code (TIN)

2 — Size Designation
3 — Service Description
4 — Maximum Load
5 — Maximum Pressure
6 — Treadwear, Traction and Tempera -
ture Grades

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242SERVICING AND MAINTENANCE
Service Description:
95 = Load Index
A numerical code associated with the maximum load a tire can carry
H = Speed Symbol
A symbol indicating the range of speeds at which a tire can carry a load corresponding to its load index under certain operating conditions
The maximum speed corresponding to the speed symbol should only be achieved under specified operating conditions (i.e., tire pressure, vehicle
loading, road conditions, and posted speed limits)
Load Identification:
Absence of the following load identification symbols on the sidewall of the tire indicates a Standard Load (SL) tire:
XL = Extra load (or reinforced) tire, or
LL = Light load tire or
C, D, E, F, G = Load range associated with the maximum load a tire can carry at a specified pressure
Maximum Load – Maximum load indicates the maximum load this tire is designed to carry
Maximum Pressure – Maximum pressure indicates the maximum permissible cold tire inflation pressure for this tire
EXAMPLE:

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244SERVICING AND MAINTENANCE
Tire Terminology And Definitions
Term Definition
B-pillarThe vehicle B-pillar is the structural member of the body located behind the front door.
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. Inflation pressure is measured in units of PSI (pounds per
square inch) or kPa (kilopascals).
Maximum Inflation Pressure The maximum inflation pressure is the maximum permissible cold tire inflation pressure
for this tire. The maximum inflation pressure is molded into the sidewall.
Recommended Cold Tire Inflation Pressure FCA recommended cold tire inflation pressure as shown on the tire placard.
Tire Placard A label permanently attached to the vehicle describing the vehicle’s loading capacity, the
original equipment tire sizes and the recommended cold tire inflation pressures.

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SERVICING AND MAINTENANCE245
Tire Loading And Tire Pressure
NOTE:
The proper cold tire inflation pressure is listed
on the driver’s side B-Pillar or the rear edge of
the driver's side door.
Check the inflation pressure of each tire,
including the spare tire (if equipped), at least
monthly and inflate to the recommended
pressure for your vehicle.

Example Tire Placard Location (Door) Example Tire Placard Location (B-Pillar)

Tire And Loading Information Placard

Tire And Loading Information Placard
This placard tells you important information
about the:

1. Number of people that can be carried in
the vehicle.

2. Total weight your vehicle can carry.
3. Tire size designed for your vehicle.
4. Cold tire inflation pressures for the front, rear, and spare tires.
Loading
The vehicle maximum load on the tire must not
exceed the load carrying capacity of the tire on
your vehicle. You will not exceed the tire's load
carrying capacity if you adhere to the loading
conditions, tire size, and cold tire inflation
pressures specified on the Tire and Loading
Information placard Ú page 76.
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248SERVICING AND MAINTENANCE
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.
WARNING!
Overloading of your tires is dangerous.
Overloading can cause tire failure, affect
vehicle handling, and increase your stopping
distance. Use tires of the recommended load
capacity for your vehicle. Never overload
them.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.

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SERVICING AND MAINTENANCE249
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 judgment when determining
proper inflation. Tires may look properly
inflated even when they are under-inflated.
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.
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,
maintaining 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 operating
speeds, loading and cold tire inflation
pressures.
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.
WARNING!
High speed driving with your vehicle under
maximum load is dangerous. The added
strain on your tires could cause them to fail.
You could have a serious collision. Do not
drive a vehicle loaded to the maximum
capacity at continuous speeds above
75 mph (120 km/h).
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