2021 RAM PROMASTER CITY check engine light

256TECHNICAL SPECIFICATIONS
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
Gasoline Engine
All available gasoline engines are
designed to meet all emissions
regulations and provide excellent fuel
economy and performance when
using high quality unleaded “regular” gasoline
having a octane rating of 87 using the (R+M)/
2 method. The use of premium gasoline is not
recommended, as it will not provide any benefit
over regular gasoline in these engines.
While operating on gasoline with an octane
number of 87, 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 an authorized dealer
immediately. Use of gasoline with an octane
number lower than 87 can cause engine failure
and may void 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.
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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INDEX
A
Adding Engine Coolant (Antifreeze)............... 228Additives, Fuel............................................... 257Advance Phone Connectivity......................... 118Air BagAir Bag Operation...................................... 163Driver Knee Air Bag................................... 164Enhanced Accident Response......... 168, 212Event Data Recorder (EDR)....................... 212Front Air Bag............................................. 162If Deployment Occurs................................ 167Knee Impact Bolsters................................ 164Maintaining Your Air Bag System.............. 169Maintenance............................................. 169Transporting Pets...................................... 184Air Bag Light........................................... 49, 186Air Cleaner, Engine (Engine Air Cleaner
Filter)............................................................. 224Air Conditioner Maintenance......................... 225Air Conditioner Refrigerant............................ 225Air Conditioner System.................................. 225Air Conditioning Filter...................................... 34Air Conditioning, Operating Tips................ 33, 34Air Filter......................................................... 224
Air PressureTires......................................................... 242AlarmSecurity Alarm............................................. 13Alterations/ModificationsVehicle........................................................... 8Antifreeze (Engine Coolant)................. 228, 259Disposal................................................... 229Anti-Lock Brake System (ABS)...................... 145Anti-Lock Warning Light................................... 52Assist, Hill Start............................................. 148Audio Settings............................................... 105Audio Systems (Radio)..................................... 86Auto Down Power Windows............................. 35Automatic Transmission........................... 62, 63Adding Fluid..................................... 232, 261Fluid And Filter Change............................ 232Fluid Change............................................ 232Fluid Level Check............................ 231, 232Fluid Type........................................ 231, 261Special Additives...................................... 232Auxiliary Electrical Outlet (Power Outlet).......... 40Axle Fluid...................................................... 261
B
Battery................................................... 50, 222Charging System Light.................................50Keyless Key Fob Replacement....................11Belts, Seat.................................................... 185BluetoothConnecting To A Particular Mobile Phone Or Audio Device After Pairing
................ 114Body Builders Guide........................................... 7Body Mechanism Lubrication........................ 225B-Pillar Location............................................ 239Brake Assist System..................................... 146Brake Fluid.................................................... 261Brake System....................................... 230, 255Anti-Lock (ABS)......................................... 145Fluid Check...................................... 231, 261Master Cylinder........................................ 231Parking........................................................60Warning Light...............................................49Brake, Parking.................................................60Brake/Transmission Interlock..........................63Bulb Replacement........................................ 213Bulbs, Light.......................................... 187, 213

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267
C
Camera, Rear
.................................................. 73Capacities, Fluid............................................ 259Caps, Filler Fuel............................................................. 74Oil (Engine)................................................ 221Power Steering............................................ 68Radiator (Coolant Pressure)...................... 229Car Washes................................................... 252Carbon Monoxide Warning.................. 185, 258Cargo Area Cover............................................. 38Cargo Compartment........................................ 38Cargo Tie-Downs.............................................. 38Cellular Phone............................................... 143Certification Label........................................... 75Chains, Tire.................................................... 249Changing A Flat Tire....................................... 194Chart, Tire Sizing............................................ 235Check Engine Light (Malfunction Indicator
Light)............................................................... 57Checking Your Vehicle For Safety.................. 185Checks, Safety............................................... 185Child Restraint............................................... 170Child RestraintsBooster Seats............................................ 173Child Seat Installation..................... 180, 183How To Stow An unused ALR Seat Belt..... 178Infant And Child Restraints....................... 171
Locating The LATCH Anchorages.............. 177Lower Anchors And Tethers For Children.. 175Older Children And Child Restraints......... 172Seating Positions...................................... 174Clean Air Gasoline......................................... 256CleaningWheels..................................................... 248Climate Control................................................ 31Cold Weather Operation.................................. 58Compact Spare Tire...................................... 247Contract, Service.......................................... 263Cooling Pressure Cap (Radiator Cap)............ 229Cooling System............................................. 227Adding Coolant (Antifreeze)...................... 228Coolant Level............................................ 230Cooling Capacity....................................... 259Disposal Of Used Coolant......................... 229Drain, Flush, And Refill............................. 228Inspection........................................ 228, 230Points To Remember................................ 230Pressure Cap............................................ 229Radiator Cap............................................ 229Selection Of Coolant (Antifreeze)..... 228, 259Corrosion Protection..................................... 252Cruise Light...................................................... 55Customer Assistance.................................... 262Customer Programmable Features.................. 87Cybersecurity................................................... 86
D
Dealer Service............................................... 223Defroster, Windshield................................... 186Deleting A Phone........................................... 114Diagnostic System, Onboard............................56DipsticksOil (Engine)............................................... 222Power Steering............................................68Disable Vehicle Towing................................. 211Disconnecting............................................... 114DisposalAntifreeze (Engine Coolant)...................... 229Disturb.......................................................... 117Door Ajar..........................................................51Door Ajar Light.................................................51Door Locks.......................................................14Doors...............................................................14Driver’s Seat Back Tilt......................................17DrivingThrough Flowing, Rising, Or Shallow Standing Water
.......................................84
E
Electric Brake Control System....................... 146Electric Remote Mirrors...................................26Electrical Outlet, Auxiliary (Power Outlet).........40Electronic Range Select (ERS).........................67Electronic Stability Control (ESC)................... 14611

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268
Electronic Throttle Control Warning Light
........ 51Emergency, In Case Of Freeing Vehicle When Stuck...................... 209Jacking...................................................... 194Jump Starting............................................ 204Towing....................................................... 211Emission Control System Maintenance........... 57Engine........................................................... 221Air Cleaner................................................. 224Block Heater............................................... 59Break-In Recommendations........................ 60Checking Oil Level..................................... 222Coolant (Antifreeze)................................... 259Cooling...................................................... 227Exhaust Gas Caution....................... 185, 258Fails To Start............................................... 59Flooded, Starting......................................... 59Jump Starting............................................ 204Oil.................................................... 223, 259Oil Filler Cap.............................................. 221Oil Filter..................................................... 224Oil Selection.................................... 223, 259Oil Synthetic.............................................. 224Overheating............................................... 207Starting....................................................... 58Enhanced Accident Response
Feature................................................ 168, 212Ethanol.......................................................... 257Exhaust Gas Cautions.......................... 185, 258Exhaust System................................... 185, 226Exterior Lights......................................... 27, 187
F
Filters
Air Cleaner
................................................ 224Air Conditioning........................................... 34Engine Oil........................................ 224, 259Engine Oil Disposal................................... 224FlashersHazard Warning........................................ 188Turn Signals.......................................55, 187Flooded Engine Starting................................... 59Fluid Capacities............................................ 259Fluid Leaks................................................... 187Fluid Level ChecksBrake........................................................ 231Engine Oil................................................. 222Power Steering............................................ 68Fluid, Brake.................................................. 261Fog Lights........................................................ 28Fold-Flat Seats................................................. 17Four-Way Hazard Flasher.............................. 188Freeing A Stuck Vehicle................................ 209Fuel............................................................... 256Additives................................................... 257Clean Air................................................... 256Ethanol..................................................... 257Filler Cap (Gas Cap)..................................... 74Gasoline................................................... 256Materials Added....................................... 257Methanol.................................................. 257
Octane Rating.................................. 256, 259Specifications........................................... 259Tank Capacity........................................... 259Fuses............................................................ 188
G
Gas Cap (Fuel Filler Cap)..................................74Gasoline, (Fuel)............................................. 256Gasoline, Clean Air........................................ 256Gasoline, Reformulated................................ 256Gear Ranges....................................................64Gear Selector Override.................................. 209Glass Cleaning.............................................. 254Gross Axle Weight Rating.......................... 76, 77Gross Vehicle Weight Rating.....................76, 77GuideBody Builders................................................. 7GVWR...............................................................76
H
HazardDriving Through Flowing, Rising, Or Shallow Standing Water
.......................................84Hazard Warning Flashers.............................. 188Head Restraints...............................................21HeadlightsCleaning.................................................... 252Passing........................................................28Switch..........................................................27

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Heated Seats
................................................... 20Heater, Engine Block....................................... 59Hill Start Assist.............................................. 148Hitches Trailer Towing.............................................. 78Hood Prop........................................................ 37Hood Release.................................................. 37
I
Ignition............................................................ 12Key....................................................... 10, 12Switch......................................................... 12Ignition Key Removal....................................... 12Immobilizer (Sentry Key).................................. 12Inside Rearview Mirror..................................... 25Instrument Cluster.................................... 43, 44Descriptions................................................ 55Display........................................................ 44Display Controls.......................................... 45Engine Oil Reset.......................................... 46Instrument Panel Lens Cleaning.................... 253Interior And Instrument Lights......................... 29Interior Appearance Care............................... 253Interior Lights.................................................. 29iPod Control..................................................... 40iPod/USB/MP3 Control................................... 40Bluetooth Streaming Audio......................... 40
J
Jack Location................................................ 194Jack Operation.............................................. 194Jacking And Tire Changing............................ 194Jump Starting............................................... 204
K
Key FobProgramming Additional Key Fobs
............... 11Key Fob Battery Service (Remote Keyless
Entry)............................................................... 11Key Fob Programming (Remote Keyless
Entry)............................................................... 11Keys................................................................. 10Replacement............................................... 11Sentry (Immobilizer).................................... 12
L
Lane Change Assist......................................... 28Lap/Shoulder Belts....................................... 155Latches......................................................... 187Hood............................................................ 37Leaks, Fluid.................................................. 187Life Of Tires................................................... 245Light Bulbs........................................... 187, 213Lights............................................................ 187Air Bag................................................49, 186Brake Assist Warning............................... 147
Brake Warning.............................................49Bulb Replacement.................................... 213Cruise..........................................................55Daytime Running.........................................27Engine Temperature Warning......................51Exterior.............................................. 27, 187Hazard Warning Flasher........................... 188Headlights...................................................27Interior.........................................................29Malfunction Indicator (Check Engine)..........54Park......................................................28, 55Passing........................................................28Seat Belt Reminder.....................................52Service...................................................... 213Tire Pressure Monitoring (TPMS).............. 149Traction Control........................................ 147Turn Signals....................................... 55, 187Warning Instrument Cluster Descriptions.....................................51, 55Loading Vehicle......................................... 75, 76Capacities....................................................76Tires.......................................................... 239LocksPower Door..................................................14Low Tire Pressure System............................. 149Lubrication, Body.......................................... 225Lug Nuts/Bolts.............................................. 25511

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M
Maintenance Free Battery
............................. 222Maintenance Schedule.................................. 217Malfunction Indicator Light (Check
Engine)..................................................... 54, 57Manual Service...................................................... 264Master CylinderBrakes....................................................... 231Methanol....................................................... 257Mirrors............................................................. 25Electric Powered......................................... 26Electric Remote........................................... 26Exterior Folding........................................... 25Outside........................................................ 25Rearview..................................................... 25Modifications/AlterationsVehicle.......................................................... 8Monitor, Tire Pressure System....................... 149Mopar Parts................................................... 264
N
New Vehicle Break-In Period............................ 60
O
Occupant Restraints...................................... 153Octane Rating, Gasoline (Fuel)............ 256, 259Oil Change Indicator........................................ 46Reset........................................................... 46
Oil Filter, Change.......................................... 224Oil Filter, Selection........................................ 224Oil Pressure Light............................................. 51Oil Reset.......................................................... 46Oil, Engine............................................ 223, 259Capacity.................................................... 259Checking................................................... 222Dipstick.................................................... 222Disposal................................................... 224Filter................................................ 224, 259Filter Disposal........................................... 224Identification Logo.................................... 223Materials Added To.................................. 224Pressure Warning Light............................... 51Recommendation............................ 223, 259Synthetic.................................................. 224Viscosity................................................... 259Onboard Diagnostic System............................. 56Operating Precautions..................................... 56Operator ManualOwner's Manual........................................ 264Outside Rearview Mirrors................................ 25Overheating, Engine...................................... 207
P
Paint Care..................................................... 252Parking Brake.................................................. 60ParkSense System, Rear................................. 70Passing Light................................................... 28
Personal Settings.............................................87Pets............................................................... 184Phone Mode.................................................. 109Placard, Tire And Loading Information.......... 239PowerMirrors.........................................................26Steering................................................67, 68Windows......................................................35Power Steering Fluid..................................... 261Pregnant Women And Seat Belts.................. 159Preparation For Jacking....................... 194, 196PretensionersSeat Belts................................................. 159
R
Radial Ply Tires.............................................. 243Radiator Cap (Coolant Pressure Cap)............ 229Radio Operation............................................ 143Rear Camera....................................................73Rear ParkSense System...................................70Recreational Towing.........................................83Reformulated Gasoline................................. 256Refrigerant.................................................... 225Release, Hood..................................................37Reminder, Seat Belt...................................... 154Remote Keyless EntryProgramming Additional Key Fobs...............11Remote Sound System (Radio) Controls....... 142Replacement Bulbs....................................... 213

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