2021 RAM PROMASTER service

SERVICING AND MAINTENANCE253
Snow Tires
Some areas of the country require the use of
snow tires during the Winter. Snow tires can be
identified by a “mountain/snowflake” symbol
on the tire sidewall.
If you need snow tires, select tires
equivalent in size and type to the
original equipment tires. Use snow
tires only in sets of four; failure to do
so may adversely affect the safety and handling
of your vehicle.
Snow tires generally have lower speed ratings
than what was originally equipped with your
vehicle and should not be operated at
sustained speeds over 75 mph (120 km/h).
For speeds above 75 mph (120 km/h) refer to
original equipment or an authorized tire dealer
for recommended safe operating speeds,
loading and cold tire inflation pressures.
While studded tires improve performance on
ice, skid and traction capability on wet or dry
surfaces may be poorer than that of
non-studded tires. Some states prohibit
studded tires; therefore, local laws should be
checked before using these tire types.
SPARE TIRES — IF EQUIPPED
NOTE:

For vehicles equipped with Tire Service Kit instead
of a spare tire, please refer to “Tire Service Kit” in
“In Case Of Emergency” for further information.

For restrictions when towing with a spare tire
designated for temporary emergency use
Ú page 82.
Spare Tire Matching Original Equipped Tire
And Wheel — If Equipped

Your vehicle may be equipped with a spare tire
and wheel equivalent in look and function to
the original equipment tire and wheel found on
the front or rear axle of your vehicle. This spare
tire may be used in the tire rotation for your vehicle. If your vehicle has this option, refer to
an authorized tire dealer for the recommended
tire rotation pattern.

NOTE:
This spare tire may not have a tire pressure
monitor sensor.
Compact Spare Tire — If Equipped
The compact spare is for temporary emergency
use only. You can identify if your vehicle is
equipped with a compact spare by looking at
the spare tire description on the Tire and
Loading Information Placard located on the
driver’s side door opening or on the sidewall of
the tire. Compact spare tire descriptions begin
with the letter “T” or “S” preceding the size
designation. Example: T145/80D18 103M.
T, S = Temporary Spare Tire
Since this tire has limited tread life, the original
equipment tire should be repaired (or replaced)
and reinstalled on your vehicle at the first
opportunity.
CAUTION!
Because of the reduced ground clearance, do
not take your vehicle through an automatic
car wash with a compact or limited use
temporary spare installed. Damage to the
vehicle may result.
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SERVICING AND MAINTENANCE257
SNOW TRACTION DEVICES
Use of traction devices require sufficient tire-to-body clearance. Due to limited clearance the following traction devices are recommended. Follow these
recommendations to guard against damage.
Snow traction device must be of proper size for the tire, as recommended by the traction device manufacturer.
No other tire sizes are recommended for use with a tire chain or traction device.
Please follow the table below for the recommended tire size, axle and snow traction device:
FWD
Trim Level Axle
Tire/Wheel Size Snow Traction Device
(maximum projection beyond tire profile or equivalent)
All Front LT225/75R16E
225/75R16C Quality Chain Corp Light Truck Highway Service (Non-Cam)
tire chain or equivalent is recommended.
WARNING!
Using tires of different size and type (M+S, Snow) between front and rear axles can cause unpredictable handling. You could lose control and have a
collision.8

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SERVICING AND MAINTENANCE259
DEPARTMENT OF TRANSPORTATION
UNIFORM TIRE QUALITY GRADES
The following tire grading categories
were established by the National
Highway Traffic Safety Administration.
The specific grade rating assigned by the
tire's manufacturer in each category is
shown on the sidewall of the tires on
your vehicle.
All passenger vehicle tires must conform
to Federal safety requirements in
addition to these grades.
TREADWEAR

The Treadwear grade is a comparative
rating, based on the wear rate of the tire
when tested under controlled conditions on
a specified government test course. For
example, a tire graded 150 would wear one
and one-half times as well on the
government course as a tire graded 100.
The relative performance of tires depends
upon the actual conditions of their use,
however, and may depart significantly from the norm due to variations in driving habits,
service practices, and differences in road
characteristics and climate.

TRACTION GRADES
The Traction grades, from highest to
lowest, are AA, A, B, and C. These grades
represent the tire's ability to stop on wet
pavement, as measured under
controlled conditions on specified
government test surfaces of asphalt and
concrete. A tire marked C may have poor
traction performance.
TEMPERATURE GRADES
The Temperature grades are A (the
highest), B, and C, representing the tire's
resistance to the generation of heat and
its ability to dissipate heat, when tested
under controlled conditions on a
specified indoor laboratory test wheel.
Sustained high temperature can cause
the material of the tire to degenerate
and reduce tire life, and excessive
temperature can lead to sudden tire
failure. The grade C corresponds to a
level of performance, which all
passenger vehicle tires must meet
under the Federal Motor Vehicle Safety
Standard No. 109. Grades B and A
represent higher levels of performance
on the laboratory test wheel, than the
minimum required by law.
WARNING!
The traction grade assigned to this tire is
based on straight-ahead braking traction
tests, and does not include acceleration,
cornering, hydroplaning, or peak traction
characteristics.
WARNING!
The temperature grade for this tire is
established for a tire that is properly inflated
and not overloaded. Excessive speed,
underinflation, or excessive loading, either
separately or in combination, can cause heat
buildup and possible tire failure.
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260SERVICING AND MAINTENANCE
STORING THE VEHICLE
If you are storing your vehicle for more than
3 weeks, we recommend that you take the
following steps to minimize the drain on your
vehicle's battery:
Disconnect the negative cable from the
battery.
Any time you store your vehicle or keep it out
of service (i.e., vacation) for two weeks or
more, run the air conditioning system at idle
for about five minutes in the fresh air and
high blower setting prior to storing. This will
ensure adequate system lubrication to mini -
mize the possibility of compressor damage
when the system is started again.
BODYWORK
PROTECTION FROM ATMOSPHERIC
A
GENTS
Vehicle body care requirements vary according
to geographic locations and usage. Chemicals
that make roads passable in snow and ice and
those that are sprayed on trees and road
surfaces during other seasons are highly
corrosive to the metal in your vehicle. Outside parking, which exposes your vehicle to
airborne contaminants, road surfaces on which
the vehicle is operated, extreme hot or cold
weather, and other extreme conditions will have
an adverse effect on paint, metal trim, and
underbody protection.
The following maintenance recommendations
will enable you to obtain maximum benefit from
the corrosion resistance built into your vehicle.
What Causes Corrosion?
Corrosion is the result of deterioration or
removal of paint and protective coatings from
your vehicle.
The most common causes are:
Road salt, dirt and moisture accumulation
Stone and gravel impact
Insects, tree sap and tar
Salt in the air near seacoast localities
Atmospheric fallout/industrial pollutants
BODY AND UNDERBODY MAINTENANCE
Cleaning Headlights
Your vehicle is equipped with plastic headlights
and fog lights that are lighter and less
susceptible to stone breakage than glass
headlights.
Plastic is not as scratch resistant as glass and
therefore different lens cleaning procedures
must be followed.
To minimize the possibility of scratching the
lenses and reducing light output, avoid wiping
with a dry cloth. To remove road dirt, wash with
a mild soap solution followed by rinsing.
Do not use abrasive cleaning components,
solvents, steel wool or other aggressive
material to clean the lenses.

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TECHNICAL SPECIFICATIONS265
Inspect the wheel mounting surface prior to
mounting the tire and remove any corrosion or
loose particles.

Wheel Mounting Surface

Tighten the lug nuts/bolts in a star pattern until
each nut/bolt has been tightened twice. Ensure
that the socket is fully engaged on the lug nut/
bolt (do not insert it halfway).
Torque Patterns

After 25 miles (40 km), check the lug nut/bolt torque to be sure that all the lug nuts/bolts are
properly seated against the wheel.FUEL REQUIREMENTS
While operating on gasoline with the required
octane number, hearing a light knocking sound
from the engine is not a cause for concern.
However, if the engine is heard making a heavy
knocking sound, see a dealer immediately. Use
of gasoline with a lower than recommended
octane number can cause engine failure and
may void or not be covered by the New Vehicle
Limited Warranty.
Poor quality gasoline can cause problems such
as hard starting, stalling, and hesitations. If you
experience these symptoms, try another brand
of gasoline before considering service for the
vehicle.
3.6L ENGINE
This engine is designed to meet all
emissions regulations and provide
optimum fuel economy and
performance when using high quality
unleaded “Regular” gasoline having a posted
octane number of 87 as specified by the (R+M)/
2 method. The use of higher octane “Premium”
gasoline is not required, as it will not provide
any benefit over “Regular” gasoline in these
engines.
WARNING!
To avoid the risk of forcing the vehicle off the
jack, do not tighten the lug nuts/bolts fully
until the vehicle has been lowered. Failure to
follow this warning may result in personal
injury.
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TECHNICAL SPECIFICATIONS267
(Continued)
CNG AND LP FUEL SYSTEM
M
ODIFICATIONS
Modifications that allow the engine to run on
Compressed Natural Gas (CNG) or Liquid
Propane (LP) may result in damage to the
engine, emissions, and fuel system
components. Problems that result from running
CNG or LP are not the responsibility of the
manufacturer and may void or not be covered
under the New Vehicle Limited Warranty.
MMT IN GASOLINE
Methylcyclopentadienyl Manganese Tricarbonyl
(MMT) is a manganese-containing metallic
additive that is blended into some gasoline to
increase octane. Gasoline blended with MMT
provides no performance advantage beyond
gasoline of the same octane number without
MMT. Gasoline blended with MMT reduces
spark plug life and reduces emissions system
performance in some vehicles. The
manufacturer recommends that gasoline
without MMT be used in your vehicle. The MMT
content of gasoline may not be indicated on the gasoline pump; therefore, you should ask your
gasoline retailer whether the gasoline contains
MMT. MMT is prohibited in Federal and
California reformulated gasoline.
FUEL SYSTEM CAUTIONS
NOTE:
Intentional tampering with the emissions
control system can result in civil penalties being
assessed against you.
CAUTION!
Follow these guidelines to maintain your
vehicle’s performance:
The use of leaded gasoline is prohibited by
Federal law. Using leaded gasoline can
impair engine performance and damage
the emissions control system.
An out-of-tune engine or certain fuel or igni
-
tion malfunctions can cause the catalytic
converter to overheat. If you notice a
pungent burning odor or some light smoke,
your engine may be out of tune or malfunc -
tioning and may require immediate service.
Contact an authorized dealer for service
assistance.
The use of fuel additives, which are now
being sold as octane enhancers, is not
recommended. Most of these products
contain high concentrations of methanol.
Fuel system damage or vehicle perfor -
mance problems resulting from the use of
such fuels or additives is not the responsi -
bility of the manufacturer and may void or
not be covered under the New Vehicle
Limited Warranty.
CAUTION! (Continued)
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271
CUSTOMER ASSISTANCE
SUGGESTIONS FOR OBTAINING SERVICE
FOR YOUR VEHICLE
PREPARE FOR THE APPOINTMENT
All work to be performed may not be covered by
the warranty. Discuss additional charges with
the service manager. Keep a maintenance log
of your vehicle's service history. This can often
provide a clue to the current problem.
PREPARE A LIST
Make a written list of your vehicle's problems or
the specific work you want done. If you've had
an accident or work done that is not on your
maintenance log, let the service advisor know.
BE REASONABLE WITH REQUESTS
If you list a number of items and you must have
your vehicle by the end of the day, discuss the
situation with the service advisor and list the
items in order of priority. At many authorized
dealers, you may obtain a rental vehicle
(additional charges may apply). If you need a
rental, it is advisable to make these
arrangements when you call for an
appointment.
IF YOU NEED ASSISTANCE
FCA US LLC and its authorized dealers are vitally
interested in your satisfaction. We want you to
be happy with our products and services.
Warranty service must be done by an
authorized dealer. We strongly recommend that
you take the vehicle to an authorized dealer.
They know your vehicle the best, and are most
concerned that you get prompt and high quality
service. FCA US LLC's authorized dealers have the facilities, factory-trained technicians,
special tools, and the latest information to
ensure the vehicle is fixed correctly and in a
timely manner.

This is why you should always talk to an
authorized dealer’s service manager first. If for
some reason you are still not satisfied, talk to
the general manager or owner of the
authorized dealer. They want to know if you
need assistance. If an authorized dealer is
unable to resolve the concern, you may
contact the FCA US LLC's Customer Assistance
center.

Any communication to FCA US LLC’s customer
center should include the following information:
Owner's name and address
Owner's telephone number (home, mobile,
and office)
Authorized dealer name
Vehicle Identification Number (VIN)
Vehicle delivery date and mileage
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272CUSTOMER ASSISTANCE
FCA US LLC CUSTOMER CENTER
P.O. Box 21–8004
Auburn Hills, MI 48321–8004
Phone: (866) 726-4636
FCA CANADA INC. CUSTOMER CENTER
P.O. Box 1621
Windsor, Ontario N9A 4H6
Phone: (800) 465-2001 English /
(800) 387-9983 French
MEXICO
Av. Prolongacion Paseo de la Reforma, 1240
Sante Fe C.P. 05109
Mexico, D. F.
In Mexico City: 800-505-1300
Outside Mexico City: +(52) 55 50817568
PUERTO RICO AND US VIRGIN ISLANDS
FCA Caribbean LLC
P.O. Box 191857
San Juan 00919-1857
Phone: (866) 726-4636
Fax: (787) 782-3345
CUSTOMER ASSISTANCE FOR THE
H
EARING OR SPEECH IMPAIRED (TDD/
TTY)
To assist customers who have hearing
difficulties, FCA US LLC has installed special
Telecommunication Devices for the Deaf (TDD)
equipment at its customer center. Any hearing
or speech impaired customer, who has access
to a TDD or a conventional teletypewriter (TTY)
in the United States, can communicate with
FCA US LLC by dialing 1-800-380-2479.
Canadian residents with hearing difficulties that
require assistance can use the special needs
relay service offered by Bell Canada. For TTY
teletypewriter users, dial 711 and for Voice
callers, dial 1-800-855-0511 to connect with a
Bell Relay Service operator.
SERVICE CONTRACT
You may have purchased a service contract for
a vehicle to help protect you from the high cost
of unexpected repairs after FCA US LLC’s New
Vehicle Limited Warranty expires. The Mopar
Vehicle Protection plans are the ONLY vehicle
extended protection plans authorized,
endorsed and backed by FCA US LLC to provide
additional protection beyond your vehicle’s warranty. If you purchased a Mopar Vehicle
Protection Plan, you will receive Plan Provisions
and an Owner Identification Card in the mail
within three weeks of the vehicle delivery date.
If you have any questions about the service
contract, call FCA US LLC's Service Contract
National Customer Hotline at 1-800-521-9922
(Canadian residents, call (800) 465-2001
English / (800) 387-9983 French).
FCA US LLC is not responsible for any service
contract you may have purchased from another
manufacturer. If you require service after the
FCA US LLC New Vehicle Limited Warranty
expires, please refer to the contract documents,
and contact the person listed in those
documents.
We appreciate that you have made a major
investment when you purchased the vehicle.
An authorized dealer has also made a major
investment in facilities, tools, and training to
assure that you are absolutely delighted with
the ownership experience.

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