2021 CHRYSLER PACIFICA HYBRID cooling

334SERVICING AND MAINTENANCE
Synthetic Engine Oils
You may use synthetic engine oils provided the
recommended oil quality requirements are met,
and the recommended maintenance intervals for
oil and filter changes are followed.
Synthetic engine oils which do not have both the
engine oil certification mark and the correct SAE
viscosity grade number should not be used.
Materials Added To Engine Oil
The manufacturer strongly recommends against
the addition of any additives (other than leak
detection dyes) to the engine oil. Engine oil is an
engineered product and its performance may be
impaired by supplemental additives.
Disposing Of Used Engine Oil And Oil
Filters
Care should be taken in disposing of used engine
oil and oil filters from your vehicle. Used oil and oil
filters, indiscriminately discarded, can present a
problem to the environment. Contact an authorized dealer, service station or
governmental agency for advice on how and where
used oil and oil filters can be safely discarded in
your area.
ENGINE OIL FILTER
The engine oil filter should be replaced with a new
filter at every engine oil change.
Engine Oil Filter Selection
A full-flow type disposable oil filter should be used
for replacement. The quality of replacement filters
varies considerably. Only high quality Mopar®
certified filters should be used.
ENGINE AIR CLEANER FILTER
For the proper maintenance intervals
Úpage 328. Engine Air Cleaner Filter Selection
The quality of replacement filters varies
considerably. Only high quality Mopar® certified
filters should be used.
ACCESSORY DRIVE BELT INSPECTION
CAUTION!
Do not use chemical flushes in your engine oil as
the chemicals can damage your engine. Such
damage is not covered by the New Vehicle
Limited Warranty.
WARNING!
The air induction system (air cleaner, hoses,
etc.) can provide a measure of protection in the
case of engine backfire. Do not remove the air
induction system (air cleaner, hoses, etc.) unless
such removal is necessary for repair or
maintenance. Make sure that no one is near the
engine compartment before starting the vehicle
with the air induction system (air cleaner, hoses,
etc.) removed. Failure to do so can result in
serious personal injury.
WARNING!
Do not attempt to inspect an accessory drive
belt with vehicle running.
When working near the radiator cooling fan,
disconnect the fan motor lead. The fan is
temperature controlled and can start at any
time regardless of ignition mode. You could be
injured by the moving fan blades.
You can be badly injured working on or around
a motor vehicle. Only do service work for which
you have the knowledge and the proper equip
-
ment. If you have any doubt about your ability
to perform a service job, take your vehicle to a
competent mechanic.

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342SERVICING AND MAINTENANCE
COOLING SYSTEMEngine Coolant Checks
Check the engine coolant (antifreeze) protection
every 12 months (before the onset of freezing
weather, where applicable). If the engine coolant is
dirty, the system should be drained, flushed, and
refilled with fresh Organic Additive Technology
(OAT) coolant (conforming to MS.90032) by an
authorized dealer. Check the front of the A/C
condenser for any accumulation of bugs, leaves,
etc. If dirty, clean by gently spraying water from a
garden hose vertically down the face of the
condenser.
Check the engine cooling system hoses for brittle
rubber, cracking, tears, cuts, and tightness of the
connection at the coolant recovery bottle and
radiator. Inspect the entire system for leaks. DO
NOT REMOVE THE COOLANT PRESSURE CAP
WHEN THE COOLING SYSTEM IS HOT.
Cooling System — Drain, Flush And Refill
NOTE:Some vehicles require special tools to add coolant
properly. Failure to fill these systems properly
could lead to severe internal engine damage. If any
coolant is needed to be added to the system
please contact an authorized dealer. If the engine coolant (antifreeze) is dirty or
contains visible sediment, have an authorized
dealer clean and flush with Organic Additive
Technology (OAT) coolant (conforming to
MS.90032).
For the proper maintenance intervals
Úpage 328.
Selection Of Coolant
For further information Ú page 382.
NOTE:
Mixing of engine coolant (antifreeze) other than
specified Organic Additive Technology (OAT)
engine coolant, may result in engine damage
and may decrease corrosion protection. OAT
engine coolant is different and should not be
mixed with Hybrid Organic Additive Technology
(HOAT) engine coolant or any “globally compat -
ible” coolant. If a non-OAT engine coolant is
introduced into the cooling system in an emer -
gency, the cooling system will need to be
drained, flushed, and refilled with fresh OAT
coolant (conforming to MS.90032), by an autho -
rized dealer as soon as possible.
Do not use water alone or alcohol-based engine
coolant products. Do not use additional rust
inhibitors or anti-rust products, as they may not
be compatible with the radiator engine coolant
and may plug the radiator.
WARNING!
You or others can be badly burned by hot
engine coolant (antifreeze) or steam from your
radiator. If you see or hear steam coming from
under the hood, do not open the hood until the
radiator has had time to cool. Never open a
cooling system pressure cap when the radi -
ator or coolant bottle is hot.
Keep hands, tools, clothing, and jewelry away
from the radiator cooling fan when the hood is
raised. The fan starts automatically and may
start at any time, whether the engine is
running or not.
When working near the radiator cooling fan,
disconnect the fan motor lead or turn the igni -
tion to the OFF mode. The fan is temperature
controlled and can start at any time the igni -
tion is in the ON mode.

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SERVICING AND MAINTENANCE343
This vehicle has not been designed for use with
propylene glycol-based engine coolant. Use of
propylene glycol-based engine coolant is not
recommended.
Some vehicles require special tools to add
coolant properly. Failure to fill these systems
properly could lead to severe internal engine
damage. If any coolant is needed to be added to
the system please contact an authorized dealer.
Adding Coolant
Your vehicle has been built with an improved
engine coolant (OAT coolant conforming to
MS.90032) that allows extended maintenance
intervals. This engine coolant (antifreeze)
can be used up to ten years or 150,000 miles
(240,000 km) before replacement. To prevent
reducing this extended maintenance period, it is
important that you use the same engine coolant
(OAT coolant conforming to MS.90032) throughout
the life of your vehicle.
Please review these recommendations for using
OAT engine coolant that meets the requirements of
the manufacturer Material Standard MS.90032.
When adding engine coolant:
We recommend using Mopar® Antifreeze/
Coolant 10 Year/150,000 Mile (240,000 km)
Formula OAT that meets the requirements of the
manufacturer Material Standard MS.90032.
Mix a minimum solution of 50% OAT engine
coolant that meets the requirements of the
manufacturer Material Standard MS.90032
and distilled water. Use higher concentrations
(not to exceed 70%) if temperatures below
−34°F (−37°C) are anticipated. Please contact
an authorized dealer for assistance.
Use only high purity water such as distilled or
deionized water when mixing the water/engine
coolant solution. The use of lower quality water
will reduce the amount of corrosion protection
in the engine cooling system.
NOTE:
It is the owner's responsibility to maintain the
proper level of protection against freezing
according to the temperatures occurring in the
area where the vehicle is operated.
Some vehicles require special tools to add
coolant properly. Failure to fill these systems
properly could lead to severe internal engine
damage. If any coolant is needed to be added to
the system, please contact an authorized
dealer.
Mixing engine coolant types is not recom -
mended and can result in cooling system
damage. If HOAT and OAT coolant are mixed in
an emergency, have an authorized dealer drain,
flush, and refill with OAT coolant (conforming to
MS.90032) as soon as possible.
Cooling System Pressure Cap
The cap must be fully tightened to prevent loss of
engine coolant (antifreeze), and to ensure that
engine coolant will return to the radiator from the
coolant expansion bottle/recovery tank (if
equipped).
The cap should be inspected and cleaned if there
is any accumulation of foreign material on the
sealing surfaces.
WARNING!
Do not open hot engine cooling system. Never
add engine coolant (antifreeze) when the
engine is overheated. Do not loosen or
remove the cap to cool an overheated engine.
Heat causes pressure to build-up in the
cooling system. To prevent scalding or injury,
do not remove the pressure cap while the
system is hot or under pressure.
Do not use a pressure cap other than the one
specified for your vehicle. Personal injury or
engine damage may result.8

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344SERVICING AND MAINTENANCE
Disposal Of Used Coolant
Used ethylene glycol-based coolant (antifreeze) is
a regulated substance requiring proper disposal.
Check with your local authorities to determine the
disposal rules for your community. To prevent
ingestion by animals or children, do not store
ethylene glycol-based coolant in open containers
or allow it to remain in puddles on the ground. If
ingested by a child or pet, seek emergency
assistance immediately. Clean up any ground spills
immediately.
Coolant Level
The coolant expansion bottle provides a quick
visual method for determining that the coolant
level is adequate. With the engine off and cold, the
level of the coolant (antifreeze) in the bottle should
be between the “MAX” and “MIN” lines marked on
the bottle.
As long as the engine operating temperature is
satisfactory, the coolant bottle need only be
checked once a month.
When additional coolant is needed to maintain the
proper level, it should be added to the coolant
bottle. Do not overfill.
See an authorized dealer for service.
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. For the proper maintenance intervals
Ú page 328.
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.

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TECHNICAL SPECIFICATIONS381
FLUID CAPACITIES
US Metric
Fuel (Approximate)
3.6L Engine19 Gallons 71 Liters
Engine Oil With Filter
3.6L Engine 5 Quarts 4.7 Liters
Cooling System*
3.6L Engine 13.1 Quarts — Standard Duty Cooling
13.4 Quarts — Heavy Duty Cooling 12.4 Liters — Standard Duty Cooling
12.7 Liters — Heavy Duty Cooling
* Includes heater and coolant reservoir filled to MAX level.
9

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382TECHNICAL SPECIFICATIONS
ENGINE FLUIDS AND LUBRICANTS
Component Fluid, Lubricant, or Genuine Part
Engine Coolant We recommend you use Mopar® Antifreeze/Coolant 10 Year/150,000 Mile
(240,000 km) Formula OAT (Organic Additive Technology) or equivalent
meeting the requirements of the manufacturer Material Standard MS.90032.
Engine Oil – 3.6L Engine We recommend you use API Certified SAE 0W-20 Engine Oil, meeting the
requirements of the manufacturer Material Standard MS-6395 such as
Mopar®, Pennzoil, and Shell Helix. Refer to your engine oil filler cap for
correct SAE grade.
Engine Oil Filter We recommend you use a Mopar® Engine Oil Filter. If a Mopar® Engine Oil
Filter is unavailable only use filters that meet or exceed SAE/USCAR-36 Filter
Performance Requirements.
Fuel Selection – 3.6L Engine 87 Octane (R+M)/2 Method, 0-15% ethanol (Do not use E-85).
CAUTION!
Mixing of engine coolant (antifreeze) other than specified Organic Additive Technology (OAT) engine coolant (antifreeze), may result in engine damage and
may decrease corrosion protection. Organic Additive Technology (OAT) engine coolant is different and should not be mixed with Hybrid Organic Additive Tech -
nology (HOAT) engine coolant (antifreeze) or any “globally compatible” coolant (antifreeze). If a non-OAT engine coolant (antifreeze) is introduced into the
cooling system in an emergency, the cooling system will need to be drained, flushed, and refilled with fresh OAT coolant (conforming to MS.90032), by an
authorized dealer as soon as possible.
Do not use water alone or alcohol-based engine coolant (antifreeze) products. Do not use additional rust inhibitors or antirust products, as they may not be
compatible with the radiator engine coolant and may plug the radiator.
This vehicle has not been designed for use with propylene glycol-based engine coolant (antifreeze). Use of propylene glycol-based engine coolant (antifreeze)
is not recommended.

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389
Battery Saver Feature
...................................... 66Belts, Seat..................................................... 292Blind Spot Monitoring.................................... 240Body Mechanism Lubrication........................ 337B-Pillar Location............................................. 360Brake Assist System...................................... 235Brake Control System, Electronic.................. 235Brake Fluid.................................................... 383Brake System...................................... 344, 377Anti-Lock (ABS).......................................... 377Fluid Check..................................... 345, 383Master Cylinder......................................... 345Parking...................................................... 137Warning Light............................................ 123Brake/Transmission Interlock....................... 141Brightness, Interior Lights................................ 67Bulb Replacement............................... 354, 355Bulbs, Light................................. 293, 354, 355
C
Camera.......................................................... 171Camera, Rear...................................... 171, 172Capacities, Fluid............................................ 381Caps, Filler Fuel........................................................... 175Oil (Engine)................................................ 331Radiator (Coolant Pressure)...................... 343Car Washes................................................... 374Carbon Monoxide Warning............................ 294
CargoVehicle Loading........................................ 101Cargo Area Cover.......................................... 101Cargo CompartmentLuggage Carrier........................................ 106Cargo Load Floor........................................... 101Cargo Tie-Downs........................................... 101Cellular Phone.............................................. 233Certification Label......................................... 176Chains, Tire................................................... 370Change Oil Indicator..................................... 114Changing A Flat Tire...................................... 298Chart, Tire Sizing........................................... 357Check Engine Light
(Malfunction Indicator Light)......................... 131Checking Your Vehicle For Safety................. 291Checks, Safety.............................................. 291Child Restraint.............................................. 275Child RestraintsBooster Seats........................................... 278Center Seat LATCH................................... 284Child Seat Installation..................... 286, 288How To Stow An unused ALR Seat Belt.... 285Infant And Child Restraints....................... 276Lower Anchors And Tethers ForChildren................................................ 279Older Children And Child Restraints......... 277
Seating Positions...................................... 279Using The Top Tether Anchorage.............. 289Cigar Lighter.....................................................92Clean Air Gasoline......................................... 378CleaningWheels...................................................... 369Climate Control................................................70Automatic....................................................70Manual........................................................76Rear......................................................74, 80Coat Hook........................................................87Cold Weather Operation................................ 135Compact Spare Tire...................................... 368Computer, Trip/Travel................................... 122Contract, Service........................................... 385Cooling Pressure Cap (Radiator Cap)............ 343Cooling System............................................. 342Adding Coolant (Antifreeze)...................... 343Coolant Level............................................ 344Cooling Capacity....................................... 381Disposal Of Used Coolant......................... 344Drain, Flush, And Refill............................. 342Inspection........................................ 342, 344Points To Remember................................ 344Pressure Cap............................................ 343Radiator Cap............................................. 343Selection Of Coolant (Antifreeze)......................... 342, 381, 38211

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390 Corrosion Protection
...................................... 374Cruise Control................................................ 147Cruise Control (Speed Control)...................... 149Cruise Light......................................... 129, 130Customer Assistance..................................... 384Cybersecurity................................................. 188
D
Daytime Brightness, Interior Lights.................. 67Daytime Running Lights................................... 63Dealer Service............................................... 333Defroster, Windshield.................................... 292Delay (Intermittent) Wipers.............................. 68Diagnostic System, Onboard......................... 130Dimmer Switch Headlight..................................................... 63DipsticksOil (Engine)................................................ 332Disable Vehicle Towing.................................. 324DisposalAntifreeze (Engine Coolant)....................... 344Door Ajar.............................................. 124, 125Door Ajar Light..................................... 124, 125Driver’s Seat Back Tilt.............................. 32, 33DrivingThrough Flowing, Rising, Or ShallowStanding Water
..................................... 187DVD Player (Video Entertainment System).... 214
E
Electric Brake Control System....................... 235Anti-Lock Brake System............................ 234Traction Control System........................... 239Electric Parking Brake................................... 137Electric Remote Mirrors................................... 58Electronic Stability Control (ESC).................. 236Electronic Throttle Control Warning Light...... 124Emergency Braking....................................... 246Emergency, In Case OfHazard Warning Flasher........................... 295Jacking............................................ 298, 301Jump Starting........................................... 318Overheating.............................................. 321Towing...................................................... 324Emission Control System Maintenance........ 131Engine........................................................... 331Air Cleaner................................................ 334Block Heater............................................. 136Break-In Recommendations..................... 136Checking Oil Level.................................... 332Compartment........................................... 331Compartment Identification...................... 331Coolant (Antifreeze).................................. 382Cooling..................................................... 342Exhaust Gas Caution................................ 294Fails To Start............................................ 135Flooded, Starting...................................... 135
Fuel Requirements................................... 378Oil...........................................333, 381, 382Oil Filler Cap............................................. 331Oil Filter.................................................... 334Oil Selection..................................... 333, 381Oil Synthetic.............................................. 334Overheating.............................................. 321Starting..................................................... 132Enhanced Accident Response
Feature................................................ 272, 326Ethanol.......................................................... 379Exhaust Gas Cautions................................... 294Exhaust System................................... 294, 341Exterior Lighting..................................... 63, 355Exterior Lights...................... 63, 293, 354, 355
F
FiltersAir Cleaner
................................................ 334Air Conditioning................................. 82, 336Engine Oil........................................ 334, 382Engine Oil Disposal................................... 334FlashersHazard Warning........................................ 295Turn Signals..................... 63, 129, 293, 355Flash-To-Pass............................................ 63, 65Flat Tire Changing.......................298, 355, 367Flat Tire Stowage........................ 306, 355, 367

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