2022 RAM PROMASTER air conditioning

40GETTING TO KNOW YOUR VEHICLE
MAX A/C Button — If Equipped
Press and release the MAX A/C button on
the touchscreen to change the current
setting to the coldest output of air.
The MAX A/C indicator illuminates when
MAX A/C is on. Pressing the button again will cause
the MAX A/C operation to exit.
A/C Button — If Equipped
Push the A/C button to engage the Air
Conditioning (A/C). The A/C indicator
illuminates when A/C is on.
NOTE:
For Manual Climate Controls, if the system is in
Mix, Floor or Defrost mode, the A/C can be
turned off, but the A/C system could remain
active to prevent fogging of the windows.
If fog or mist appears on the windshield or side
glass, select Defrost mode, and increase blower
speed if needed.
If your air conditioning performance seems
lower than expected, check the front of the A/C
condenser (located in front of the radiator), for
an accumulation of dirt or insects. Clean with a
gentle water spray from the front of the radiator
and through the condenser.
Recirculation Button

Press and release this button to change the
system between recirculation mode and
outside air mode. The Recirculation indicator
and the A/C indicator illuminate when the
Recirculation button is pressed. Recirculation can be
used when outside conditions such as smoke, odors,
dust, or high humidity are present. Recirculation can be
used in all modes except for Defrost. Recirculation may
be unavailable if conditions exist that could create
fogging on the inside of the windshield. The A/C can be
deselected manually without disturbing the mode
control selection. Continuous use of the Recirculation
mode may make the inside air stuffy and window
fogging may occur. Extended use of this mode is not
recommended. Recirculation mode may automatically
adjust to optimize customer experience for warming,
cooling, dehumidification, etc.
On systems with Manual Climate Controls, if equipped,
the Recirculation mode is not allowed in Defrost mode
to improve window clearing operation. Recirculation
is disabled automatically if this mode is selected.
Attempting to use Recirculation while in this mode
causes the LED in the control button to blink and then
turns off.

MAX Defrost Button
Push the MAX Defrost button to change
the current airflow setting to Defrost
mode. The indicator illuminates when
this feature is on. Max defrost set
maximum temperature setting for best windshield
and side window defrosting and defogging. If MAX
Defrost mode is turned off, the Climate Control
system will return to the previous setting. Air
comes from the windshield and side window
demist outlets.
Rear Defrost Button — If Equipped
Push and release the Rear Defrost
Control button to turn on the rear window
defroster and the heated outside mirrors
(if equipped). The Rear Defrost indicator
illuminates when the rear window defroster is on.
The rear window defroster automatically turns off
after 10 minutes the first time it is activated after
the first key cycle. If the key cycle is engaged again,
the rear window defroster will automatically turn
off 5 minutes after it is activated.

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42GETTING TO KNOW YOUR VEHICLE
Defrost Mode

Air comes from the windshield and side
window demist outlets. When the defrost
button is selected, the blower level may
increase. Use Defrost mode with maximum
temperature settings for best windshield and side
window defrosting and defogging. When toggling the
front defrost mode button, the Climate Control system
will return to the previous setting.

Mix Mode
Air is directed through the floor, defrost,
and side window demister outlets.
This setting works best in cold or snowy
conditions that require extra heat to the
windshield. This setting is good for maintaining
comfort while reducing moisture on the
windshield.
Climate Control OFF Button
Press and release this button to turn the
Climate Control ON/OFF.
ADDITIONAL REAR CLIMATE CONTROL —
I
F EQUIPPED
These switches, mounted on the instrument panel
to the left of the steering column, activate the
additional rear heating/air conditioning system.
NOTE:These switches must be enabled for operation by
the Upfitter.

Additional Rear Climate Controls Switches

Rear Blower Control

Push this button to turn on the rear climate
controls. An indicator light will turn on when
the rear climate control is on.

OPERATING TIPS
Refer to the chart at the end of this section for
suggested control settings for various weather
conditions.
Summer Operation
The engine cooling system must be protected with
a high-quality antifreeze coolant to provide proper
corrosion protection and to protect against engine
overheating. A solution of 50% OAT (Organic
Additive Technology) coolant that meets the
requirements of FCA Material Standard MS.90032
and 50% water is recommended Ú page 251.
Winter Operation
To ensure the best possible heater and defroster
performance, make sure the engine cooling
system is functioning properly and the proper
amount, type, and concentration of coolant is
used. Use of the air Recirculation mode during
Winter months is not recommended because it
may cause window fogging.
Vacation Storage
For information on maintaining the Climate Control
system when the vehicle is being stored for an
extended period of time, see Úpage 243.

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60GETTING TO KNOW YOUR INSTRUMENT PANEL
The light also will turn on when the parking brake
is applied with the ignition switch in the ON/RUN
position.
NOTE:This light shows only that the parking brake is
applied. It does not show the degree of brake
application.
Battery Charge Warning Light
This warning light will illuminate when the
battery is not charging properly. If it stays
on while the engine is running, there may
be a malfunction with the charging
system. Contact an authorized dealer as soon as
possible.
This indicates a possible problem with the
electrical system or a related component.
Door Open Warning Light

This indicator will illuminate when one or
more door(s) are not fully closed. A pop-up
appears on the instrument cluster display
showing which door is open.

NOTE:If the vehicle is moving and a door is opened, there
will also be a single chime.
Electric Power Steering (EPS) Fault
Warning Light
This warning light will turn on when
there's a fault with the EPS system
Ú page 78.
Electronic Throttle Control (ETC) Warning
Light

This warning light will illuminate to inform of
a problem with the ETC system. If a problem
is detected while the vehicle is running, the
light will either stay on or flash depending on
the nature of the problem. Cycle the ignition when the
vehicle is safely and completely stopped and the
transmission is placed in the PARK (P) position. The
light should turn off. If the light remains on with the
vehicle running, your vehicle will usually be drivable;
however, see an authorized dealer for service as soon
as possible.
If the light continues to flash when the vehicle is
running, immediate service is required and you
may experience reduced performance, an
elevated/rough idle, or engine stall and your
vehicle may require towing. The light will come
on when the ignition is placed in the ON/RUN or
MAR/ON/RUN position and remain on briefly as a
bulb check. If the light does not come on during
starting, have the system checked by an
authorized dealer.
Engine Temperature Warning Light
This light warns of an overheated engine
condition. If the engine coolant
temperature is too high, this indicator will
illuminate and a single chime will sound.

If the light turns on while driving, safely pull over and
stop the vehicle. If the Air Conditioning (A/C) system is
on, turn it off. Also, shift the transmission into NEUTRAL
and idle the vehicle. If the temperature reading does
not return to normal, turn the engine off immediately
and call for service
Ú
page 194.

Hood Open Warning Light
The telltale turns on when the hood is not
properly closed. Along with the icon, an
image of the vehicle with an open hood
cap appears on the display.
Close the hood properly.
WARNING!
Continued operation with reduced assist could
pose a safety risk to yourself and others. Service
should be obtained as soon as possible.

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206SERVICING AND MAINTENANCE
Engine Air Cleaner Filter Selection
The quality of replacement filters varies
considerably. Only high quality Mopar® certified
filters should be used.
AIR CONDITIONER MAINTENANCE
For best possible performance, your air conditioner
should be checked and serviced by an authorized
dealer at the start of each warm season. This
service should include cleaning of the condenser
fins and a performance test. Drive belt tension
should also be checked at this time.
Refrigerant Recovery And Recycling
R-134a Air Conditioning Refrigerant is a Hydrofluo -
rocarbon (HFC) that is an ozone-saving product.
However, the manufacturer recommends that air
conditioning service be performed by authorized
dealer or other service facilities using recovery and
recycling equipment.
NOTE:Use only the manufacturer approved A/C system
PAG compressor oil and refrigerants.
Cabin Air Filter
Refer to the Maintenance Plan in this chapter for
the proper maintenance intervals Ú page 199.The cabin air filter is located in the fresh air inlet in
the engine compartment. Perform the following
procedure to replace the filter:

1. Remove the two screws that secure the filter
retainer to the fresh air inlet, and remove the
filter retainer.

Accessing Air Filter

2. Remove and replace the cabin air filter from the filter retainer.
WARNING!

Use only refrigerants and compressor lubri -
cants approved by the manufacturer for your air
conditioning system. Some unapproved refrig -
erants are flammable and can explode, injuring
you. Other unapproved refrigerants or lubri -
cants can cause the system to fail, requiring
costly repairs. Refer to Warranty Information
Book, for further warranty information.

The air conditioning system contains refrig -
erant under high pressure. To avoid risk of
personal injury or damage to the system,
adding refrigerant or any repair requiring lines
to be disconnected should be done by an
experienced technician.
CAUTION!

Do not use chemical flushes in your air conditioning
system as the chemicals can damage your air
conditioning components. Such damage is not
covered by the New Vehicle Limited Warranty.

WARNING!
Do not remove the cabin air filter while the
vehicle is running, or while the ignition is in the
ACC or ON/RUN position. With the cabin air filter
removed and the blower operating, the blower
can contact hands and may propel dirt and
debris into your eyes, resulting in personal injury.
1 — Screw Locations
2 — Fresh Air Inlet

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SERVICING AND MAINTENANCE211
Coolant Level
The coolant expansion bottle provides a quick
visual method for determining that the coolant
level is adequate. With engine off and cold, the
level of the engine coolant (antifreeze) in the bottle
should be between the “MIN” and “MAX” marks.
Cooling System Notes
NOTE:
When the vehicle is stopped after a few miles/kilo -
meters of operation, you may observe vapor coming
from the front of the engine compartment. This is
normally a result of moisture from rain, snow, or high
humidity accumulating on the radiator and being
vaporized when the thermostat opens, allowing hot
engine coolant (antifreeze) to enter the radiator.

If an examination of your engine compartment
shows no evidence of radiator or hose leaks, the
vehicle may be safely driven. The vapor will soon
dissipate.
Do not overfill the coolant expansion bottle.
Check the coolant freeze point in the radiator
and in the coolant expansion bottle. If engine
coolant needs to be added, the contents of the
coolant expansion bottle must also be protected
against freezing.
If frequent engine coolant additions are
required, the cooling system should be pressure
tested for leaks.
Maintain engine coolant concentration at a
minimum of 50% OAT coolant (conforming to
MS.90032) and distilled water for proper corro -
sion protection of your engine which contains
aluminum components.
Make sure that the coolant expansion bottle
overflow hoses are not kinked or obstructed.
Keep the front of the radiator clean. If your
vehicle is equipped with air conditioning, keep
the front of the condenser clean.
Do not change the thermostat for Summer or
Winter operation. If replacement is ever neces -
sary, install ONLY the correct type thermostat.
Other designs may result in unsatisfactory
engine cooling performance, poor gas mileage,
and increased emissions.
BRAKE SYSTEM
In order to ensure brake system performance, all
brake system components should be inspected
periodically Ú page 199.
Fluid Level Check — Brake Master Cylinder
The fluid level of the master cylinder should be
checked when performing under the hood service
or immediately if the Brake System Warning Light
indicates system failure. If necessary, add fluid to
bring level within the designated marks on the side
of the reservoir of the brake master cylinder. Be
sure to clean the top of the master cylinder area
before removing cap. With disc brakes the fluid
level can be expected to fall as the brake linings
wear. However, an unexpected drop in fluid level
may be caused by a leak and a system check
should be conducted Ú page 251.
WARNING!
Riding the brakes can lead to brake failure and
possibly a collision. Driving with your foot resting
or riding on the brake pedal can result in
abnormally high brake temperatures, excessive
lining wear, and possible brake damage. You
would not have your full braking capacity in an
emergency.
8

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SERVICING AND MAINTENANCE243
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 minimize 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 affect 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.
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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257
INDEX
A
Active Driving Assist......................................... 92Active Speed Limiter........................................ 79Adaptive Cruise Control (ACC)
(Cruise Control)................................................ 80Adding Engine Coolant (Antifreeze)............... 210Adding Washing Fluid.................................... 203Additives, Fuel............................................... 249Air Bag........................................................... 162Air Bag Operation...................................... 162Air Bag Warning Light................................ 161Enhanced Accident Response...................197Event Data Recorder (EDR)....................... 197If Deployment Occurs................................ 165Maintaining Your Air Bag System.............. 167Maintenance............................................. 167Side Air Bags............................................. 163Transporting Pets...................................... 173Air Bag Light..................................59, 161, 173Air Cleaner, Engine
(Engine Air Cleaner Filter).............................. 205Air Conditioner Maintenance......................... 206Air Conditioner Refrigerant............................ 206Air Conditioner System.................................. 206Air Conditioning Filter............................. 43, 206Air Conditioning, Operating Tips................ 42, 43
Air Filter........................................................ 205Air PressureTires......................................................... 233AlarmSecurity Alarm...................................... 20, 61Alarm SystemSecurity Alarm............................................. 20Alterations/ModificationsVehicle........................................................... 8Antifreeze (Engine Coolant)................. 209, 251Disposal................................................... 210Anti-Lock Brake System (ABS)...................... 137Anti-Lock Warning Light................................... 61Assist, Hill Start............................................. 140Audio Systems (Radio).................................. 119Auto Down Power Windows............................. 48Auto Up Power Windows.................................. 48Automatic Door Locks...................................... 22Automatic Headlights....................................... 33Automatic High Beams.................................... 33Automatic Transmission.........................73, 213Adding Fluid..................................... 212, 213Fluid And Filter Change............................ 213Fluid Change............................................ 213Fluid Level Check..................................... 212
Fluid Type........................................ 212, 252Special Additives...................................... 212AUX Cord..........................................................44Auxiliary Driving Systems.............................. 142
B
Battery................................................... 60, 204Charging System Light.................................60Keyless Key Fob Replacement....................14Belts, Seat.................................................... 173Blind Spot Monitoring................................... 142Body Builders Guide........................................... 8Body Mechanism Lubrication........................ 207B-Pillar Location............................................ 230Brake Assist System..................................... 138Brake Control System, Electronic.................. 138Brake Fluid........................................... 211, 252Brake System....................................... 211, 247Anti-Lock (ABS)......................................... 137Fluid Check............................................... 211Master Cylinder........................................ 211Parking........................................................71Warning Light...............................................59Brake/Transmission Interlock..........................74Bulb Replacement........................................ 220Bulbs, Light.......................................... 174, 220
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259
Emergency, In Case Of Freeing Vehicle When Stuck
...................... 196Jacking...................................................... 180Jump Starting............................................ 192Emission Control System Maintenance........... 68Engine........................................................... 202Air Cleaner................................................. 205Block Heater............................................... 70Break-In Recommendations........................ 70Checking Oil Level..................................... 203Compartment............................................ 202Compartment Identification...................... 202Coolant (Antifreeze)......................... 209, 251Cooling...................................................... 209Exhaust Gas Caution................................. 175Fails To Start............................................... 70Flooded, Starting......................................... 70Fuel Requirements.......................... 248, 251Jump Starting............................................ 192Oil.................................................... 205, 251Oil Filler Cap.............................................. 202Oil Filter..................................................... 205Oil Selection.................................... 205, 251Oil Synthetic.............................................. 205Overheating............................................... 194Starting....................................................... 69Enhanced Accident Response Feature..........197Entry System, Illuminated................................ 37Ethanol.......................................................... 249Exhaust Gas Cautions.................................... 175
Exhaust System................................... 175, 208Exterior Lights.........................................32, 174
F
FiltersAir Cleaner
................................................ 205Air Conditioning..................................43, 206Engine Oil........................................ 205, 251Engine Oil Disposal................................... 205FlashersHazard Warning........................................ 176Turn Signals............................................. 174Flat Tire Changing................................ 225, 237Flat Tire Stowage................................. 225, 237Flooded Engine Starting................................... 70Fluid Capacities............................................ 251Fluid Leaks................................................... 174Fluid Level ChecksAutomatic Transmission........................... 212Brake........................................................ 211Cooling System......................................... 209Engine Oil................................................. 203Fog Lights........................................................ 34Fold-Flat Seats................................................. 23Forward Collision Warning............................ 148Four-Way Hazard Flasher.............................. 176Freeing A Stuck Vehicle................................ 196Fuel............................................................... 248Additives................................................... 249Clean Air................................................... 249
Ethanol..................................................... 249Filler Cap (Gas Cap).................................. 108Gasoline................................................... 248Materials Added....................................... 249Methanol.................................................. 249Octane Rating.................................. 248, 251Requirements.................................. 248, 251Tank Capacity........................................... 251Fuses............................................................ 213
G
Gas Cap (Fuel Filler Cap)...................... 108, 109Gasoline, Clean Air........................................ 249Gasoline, Reformulated................................ 249GaugesFuel..............................................................62Gear Ranges....................................................75Gear Selector Override.................................. 195Glass Cleaning.............................................. 246Gross Axle Weight Rating..................... 109, 111Gross Vehicle Weight Rating................ 109, 110GuideBody Builders................................................. 8GVWR............................................................ 109
H
HazardDriving Through Flowing, Rising, Or Shallow Standing Water
.................................... 118Hazard Warning Flashers.............................. 176
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