2021 CHRYSLER PACIFICA check engine light

327
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. This
means that service is required for your vehicle.
Operating conditions such as frequent short-trips,
trailer tow, extremely hot or cold ambient
temperatures will influence when the “Oil Change
Required” message is displayed. Have your 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
Ú
page 113.
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. Once A Month Or Before A Long Trip:
Check engine oil level.
Check windshield washer fluid level.
Check tire pressure and look for unusual wear
or damage. Rotate tires 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
and brake master cylinder, fill as needed.
Check function of all interior and exterior lights.
8

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SERVICING AND MAINTENANCE345
(Continued)
Brake Master Cylinder
The fluid in the master cylinder should be checked
when performing under hood services or
immediately if the “Brake Warning Light” is
illuminated.
Be sure to clean the top of the master cylinder area
before removing the cap. If necessary, add fluid to
bring the fluid level up to the requirements
described on the brake fluid reservoir. With disc
brakes, fluid level can be expected to fall as the
brake pads wear. Brake fluid level should be
checked when pads are replaced. However, low
fluid level may be caused by a leak and a checkup
may be needed.
Use only manufacturer recommended brake fluid
Ú page 383.
AUTOMATIC TRANSMISSION
Special Additives
The manufacturer strongly recommends against
using any special additives in the transmission.
Automatic Transmission Fluid (ATF) is an
engineered product and its performance may be
impaired by supplemental additives. Therefore, do
not add any fluid additives to the transmission.
Avoid using transmission sealers as they may
adversely affect seals.
WARNING!
Use only manufacturer recommended brake
fluid Ú page 383. Using the wrong type of
brake fluid can severely damage your brake
system and/or impair its performance. The
proper type of brake fluid for your vehicle is
also identified on the original factory installed
hydraulic master cylinder reservoir.
To avoid contamination from foreign matter or
moisture, use only new brake fluid or fluid that
has been in a tightly closed container. Keep
the master cylinder reservoir cap secured at
all times. Brake fluid in a open container
absorbs moisture from the air resulting in a
lower boiling point. This may cause it to boil
unexpectedly during hard or prolonged
braking, resulting in sudden brake failure. This
could result in a collision.
Overfilling the brake fluid reservoir can result
in spilling brake fluid on hot engine parts,
causing the brake fluid to catch fire. Brake
fluid can also damage painted and vinyl
surfaces, care should be taken to avoid its
contact with these surfaces.
Do not allow petroleum-based fluid to contam -
inate the brake fluid. Brake seal components
could be damaged, causing partial or
complete brake failure. This could result in a
collision.
WARNING!
CAUTION!
Do not use chemical flushes in your
transmission as the chemicals can damage your
transmission components. Such damage is not
covered by the New Vehicle Limited Warranty.
8

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378TECHNICAL SPECIFICATIONS
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 tightened.
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
Do not use E-85 flex fuel or ethanol blends greater
than 15% in this 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.
REFORMULATED GASOLINE
Many areas of the country require the use of
cleaner burning gasoline referred to as
“reformulated gasoline”. Reformulated gasoline
contains oxygenates and are specifically blended
to reduce vehicle emissions and improve air
quality.
The use of reformulated gasoline is recommended.
Properly blended reformulated gasoline will
provide improved performance and durability of
engine and fuel system components.
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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388
INDEX
A
About Your Brakes......................................... 377Adaptive Cruise Control (ACC)
(Cruise Control).................................... 147, 149Adding Engine Coolant (Antifreeze)............... 343Additives, Fuel............................................... 380AdjustDown........................................................... 47Forward....................................................... 47Rearward..................................................... 47Up................................................................ 47Air Bag........................................................... 262Air Bag Operation...................................... 264Air Bag Warning Light...................... 261, 264Driver Knee Air Bag................................... 269Enhanced Accident Response......... 272, 326Event Data Recorder (EDR)....................... 326Front Air Bag............................................. 264If Deployment Occurs................................ 272Knee Impact Bolsters................................ 269Maintaining Your Air Bag System.............. 274Maintenance............................................. 274Redundant Air Bag Warning Light.............262Side Air Bags............................................. 269Transporting Pets...................................... 292Air Bag Light............................... 123, 261, 292
Air Cleaner, Engine
(Engine Air Cleaner Filter)............................. 334Air Conditioner Maintenance........................ 335Air Conditioner Refrigerant.................. 335, 336Air Conditioner System................................. 335Air Conditioning Filter..............................82, 336Air Conditioning, Operating Tips....................... 82Air Filter........................................................ 334Air PressureTires......................................................... 363AlarmArm The System.......................................... 22Disarm The System..................................... 22Security Alarm.......................................... 126All Wheel DriveTowing...................................................... 326All Wheel Drive (AWD)................................... 144Alterations/ModificationsVehicle......................................................... 10Antifreeze (Engine Coolant)................. 342, 381Disposal................................................... 344Anti-Lock Brake System (ABS)...................... 234Anti-Lock Warning Light................................ 126Ashtray............................................................. 92Assist, Hill Start............................................. 238Audio Jack........................................................ 87
Audio Systems (Radio).................................. 188Auto Up Power Windows..................................94Automatic Dimming Mirror...............................57Automatic Headlights.......................................65Automatic Temperature Control (ATC)..............81Automatic Transaxle..................................... 139Automatic Transmission................................ 141Adding Fluid..................................... 346, 383Fluid And Filter Change............................. 346Fluid Change............................................. 346Fluid Level Check............................. 345, 346Fluid Type........................................ 346, 383Special Additives...................................... 345AutoPark....................................................... 133AUX Cord..........................................................87Auxiliary Electrical Outlet (Power Outlet)..........89AWDTowing...................................................... 326Axle Lubrication............................................ 383
B
Back-Up Camera........................................... 171Battery................................................. 123, 332Charging System Light.............................. 123Jump Starting........................................... 318Keyless Key Fob Replacement....................15

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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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391
Flooded Engine Starting
................................ 135Fluid Capacities............................................. 381Fluid Leaks.................................................... 293Fluid Level Checks Brake........................................................ 345Engine Oil.................................................. 332Fluid, Brake................................................... 383Fog Lights................................................. 63, 66Fold In Floor (Stow ‘n Go) Seating.................... 42Fold-Flat Seats................................................. 32Forward Collision Warning............................. 244Freeing A Stuck Vehicle................................. 323Front Position Light........................................ 355Fuel............................................................... 378Additives................................................... 380Clean Air.................................................... 378Ethanol...................................................... 379Filler Cap (Gas Cap)................................... 175Gasoline.................................................... 378Materials Added........................................ 380Methanol................................................... 379Octane Rating................................. 378, 382Requirements........................................... 378Specifications............................................ 382Tank Capacity............................................ 381Fuses............................................................. 346
G
Garage Door Opener (HomeLink)..................... 60Gas Cap (Fuel Filler Cap).............................. 175Gasoline, (Fuel)............................................. 378Gasoline, Clean Air........................................ 378Gasoline, Reformulated................................ 378Gear Ranges................................................. 141Glass Cleaning.............................................. 376Gross Axle Weight Rating.............................. 178Gross Vehicle Weight Rating......................... 177GVWR............................................................ 176
H
HazardDriving Through Flowing, Rising, Or Shallow Standing Water
....................... 187Hazard Warning Flashers.............................. 295Head Restraints............................................... 52Headlights....................................................... 63Cleaning................................................... 374High Beam/Low Beam Select Switch.......... 63Lights On Reminder.............................. 63, 65Passing................................................. 63, 65Switch.......................................................... 63Time Delay................................................... 63Washers...................................................... 65Heated Mirrors.......................................... 57, 60Heated Seats................................................... 51
Heater, Engine Block..................................... 136Hill Start Assist.............................................. 238HitchesTrailer Towing........................................... 179HomeLink (Garage Door Opener).....................60Hood Prop........................................................97Hood Release...................................................97Hook, Coat.......................................................87
I
Ignition.............................................................17Switch..........................................................17Indicator LightsBlue.......................................................... 130Green........................................................ 129White........................................................ 130Yellow....................................................... 129Inside Rearview Mirror........................... 57, 295Instrument Cluster............................... 110, 112Display...................................................... 112Display Controls........................................ 113Menu Items.............................................. 116Instrument Cluster DisplayAudio........................................................ 117Driver Assist.............................................. 116Fuel Economy........................................... 117Messages................................................. 11711

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392 Screen Setup
............................................ 117Speedometer............................................ 116Stop Start.................................................. 117Trip............................................................ 117Vehicle Info............................................... 116Instrument Panel Lens Cleaning.................... 376Interior And Instrument Lights......................... 66Interior Appearance Care............................... 375Interior Lights.................................................. 66Intermittent Wipers (Delay Wipers).................. 68InverterPower.......................................................... 91
J
Jack Location................................................. 299Jack Operation............................................... 298Jump Starting................................................ 318
K
Key Fob........................................................... 14Arm The System.......................................... 22Disarm The Alarm........................................ 22Programming Additional Key Fobs.............. 16Key Fob Battery Service
(Remote Keyless Entry)................................... 15Key Fob Programming
(Remote Keyless Entry)................................... 16
Keyless Enter 'n Go™....................................... 24Passive Entry............................................... 24Keys................................................................. 14Keysense...................................................... 115
L
Lane Change And Turn Signals........................ 63Lane Change Assist.................................. 63, 66LaneSense.................................................... 168Lap/Shoulder Belts....................................... 252Latches......................................................... 293Hood............................................................ 97Lead Free Gasoline....................................... 378Leaks, Fluid.................................................. 293Life Of Tires................................................... 366Liftgate............................................................ 98Power.......................................................... 98Light Bulbs........................................... 293, 355LighterCigar............................................................ 92Lights............................................................ 293Air Bag.................................... 123, 261, 292Anti Lock Brake System............................ 126Automatic Emergency Braking OFF.......... 129Battery Saver............................................... 66Brake Assist Warning............................... 238Brake Warning.......................................... 123
Bulb Replacement........................... 354, 355Cruise.............................................. 129, 130Daytime Running.........................................63Dimmer Switch, Headlight...........................63Electric Power Steering Fault.................... 124Electronic Park Brake............................... 126Electronic Stability Control Active............. 126Electronic Throttle Control........................ 124Engine Coolant Temperature.................... 125Exterior............................................ 293, 355Fog..................................................... 66, 129Headlights............................................ 63, 65High Beam................................................ 130High Beam/Low Beam Select......................63Hood Open................................................ 125Instrument Cluster.......................................63Intensity Control..........................................67Interior.........................................................66KeySense.................................................. 129LaneSense.............................. 127, 129, 130Liftgate Open............................................ 125Lights On Reminder..............................63, 65Low Fuel................................................... 126Low Washer Fluid..................................... 127Malfunction Indicator (Check Engine)....... 127Oil Pressure.............................................. 125Oil Temperature........................................ 125

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