2012 DODGE DURANGO coolant level

•Mix a minimum solution of 50% HOAT engine coolant
(antifreeze) and distilled water. Use higher concentra-
tions (not to exceed 70%) if temperatures below -34°F
(-37°C) are anticipated.
•Use only high purity water such as distilled or deion-
ized water when mixing the water/engine coolant
(antifreeze) solution. The use of lower quality water
will reduce the amount of corrosion protection in the
engine cooling system.
Please note that it is the owner’s responsibility to main-
tain the proper level of protection against freezing ac-
cording to the temperatures occurring in the area where
the vehicle is operated. NOTE:
Mixing engine coolant (antifreeze) types will
decrease the life of the engine coolant (antifreeze) and
will require more frequent engine coolant (antifreeze)
changes.Cooling System Pressure Cap
The cap must be fully tightened to prevent loss of engine
coolant (antifreeze), and to ensure that engine coolant
(antifreeze) will return to the radiator from the coolant
recovery tank.
The cap should be inspected and cleaned if there is any
accumulation of foreign material on the sealing surfaces.
604 MAINTAINING YOUR VEHICLE

WARNING!
•The warning words DO NOT OPEN HOT on the
cooling system pressure cap are a safety precaution.
Never add engine coolant (antifreeze) when the
engine is overheated. Do not loosen or remove the
cap to cool an overheated engine. Heat causes pres-
sure 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 en-
gine damage may result.
Disposal Of Used Engine Coolant
Used ethylene glycol-based engine coolant (antifreeze) is
a regulated substance requiring proper disposal. Check
with your local authorities to determine the disposalrules for your community. To prevent ingestion by ani-
mals and children, do not store ethylene glycol-based
engine coolant (antifreeze) 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 bottle provides a quick visual method for
determining that the engine coolant (antifreeze) level is
adequate. With the engine idling, and warm to normal
operating temperature, the level of the engine coolant
(antifreeze) in the bottle should be between the ranges
indicated on the bottle.
The radiator normally remains completely full, so there is
no need to remove the radiator cap, unless checking for
engine coolant (antifreeze) freeze point or replacing en-
gine coolant (antifreeze). Advise your service attendant
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MAINTAINING YOUR VEHICLE 605

of this. As long as the engine operating temperature is
satisfactory, the coolant bottle need only be checked once
a month.
When additional engine coolant (antifreeze) is needed to
maintain the proper level, it should be added to the
coolant bottle. Do not overfill.
Points To Remember
NOTE:When the vehicle is stopped after a few miles
(kilometers) of operation, you may observe vapor coming
from the front of the engine compartment. This is nor-
mally a result of moisture from rain, snow, or high
humidity accumulating on the radiator and being vapor-
ized 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 recovery bottle.
•Check engine coolant (antifreeze) freeze point in the
radiator and in the coolant recovery bottle. If engine
coolant (antifreeze) needs to be added, contents of
coolant recovery bottle must also be protected against
freezing.
•If frequent engine coolant (antifreeze) additions are
required, or if the level in the coolant recovery bottle
does not drop when the engine cools, the cooling
system should be pressure tested for leaks.
•Maintain engine coolant (antifreeze) concentration at
50% HOAT engine coolant (antifreeze) (minimum)
and distilled water for proper corrosion protection of
your engine, which contains aluminum components.
606 MAINTAINING YOUR VEHICLE

•Make sure that the radiator and coolant recovery
bottle 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 necessary, install
ONLY the correct type thermostat. Other designs may
result in unsatisfactory cooling performance, poor gas
mileage, and increased emissions.
Brake System
In order to assure brake system performance, all brake
system components should be periodically inspected.
Refer to the “Maintenance Schedule” for the proper
maintenance intervals.
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.
Fluid Level Check – Brake Master Cylinder
The fluid level of the master cylinder should be checked
when performing under the hood service, or immedi-
ately if the brake system warning lamp indicates system
failure.
The brake master cylinder has a plastic reservoir. On the
outboard side of the reservoir, there is a “MAX” dot and
a “MIN” dot. The fluid level must be kept within these
two dots. Do not add fluid above the MAX mark, because
leakage may occur at the cap.
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MAINTAINING YOUR VEHICLE 607

U.S.Metric
3.6L Engine (MOPAR Engine Coolant/Antifreeze
5-Year/100,000 Mile Formula or equivalent) – Front and Rear
Heat With Trailer Tow Package 12 Quarts
11.4 Liters
5.7 Liter Engine (MOPAR Engine Coolant/Antifreeze
5-Year/100,000 Mile Formula or equivalent) – Front and Rear
Heat Without Trailer Tow Package 16 Quarts
15.2 Liters
5.7 Liter Engine (MOPAR Engine Coolant/Antifreeze
5-Year/100,000 Mile Formula or equivalent) – Front and Rear
Heat With Trailer Tow Package 17 Quarts
16.2 Liters
* Includes heater and coolant recovery bottle filled to MAX level.
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MAINTAINING YOUR VEHICLE 633

Once A Month
•Check tire pressure and look for unusual wear or
damage.
•Inspect the battery and clean and tighten the terminals
as required.
•Check the fluid levels of the coolant reservoir, brake
master cylinder, power steering and transmission
(5.7L only) and add as needed.
•Check all lights and other electrical items for correct
operation.At Each Oil Change
•Change the engine oil filter.
•Inspect the brake hoses and lines.
CAUTION!
Failure to perform the required maintenance items
may result in damage to the vehicle.
Required Maintenance Intervals
Refer to the Maintenance Schedules on the following
pages for the required maintenance intervals.
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S640 MAINTENANCE SCHEDULES

Fluid Level Check................. 612,613
Fluid Type ......................... 611
Special Additives ..................... 611
Autostick ........................... 439,447
Auxiliary Electrical Outlet (Power Outlet) ...... 263
Auxiliary Power Outlet ................... 263
B-Pillar Location ........................ 484
Battery ............................... 591
Keyless Transmitter Replacement (RKE) ..... 27
Belts, Seat ............................ 52,99
Blind Spot Monitoring .................... 115
Body Mechanism Lubrication ............... 595
Brake Assist System ...................... 469
Brake Control System, Electronic ............. 467
Brake Fluid ............................ 607
Brake System ........................... 607
Anti-Lock (ABS) ..................... 468
Fluid Check ........................ 607 Master Cylinder
..................... 607
Parking ........................... 465
Warning Light ....................... 305
Brake/Transmission Interlock ............... 432
Break-In Recommendations, New Vehicle ........ 97
Bulb Replacement ..................... 626,627
Bulbs, Light ............................ 101
Calibration, Compass ..................... 329
Camera, Rear ........................... 245
Capacities, Fluid ........................ 632
Caps, Filler Fuel .............................. 519
Power Steering ...................... 464
Radiator (Coolant Pressure) ............. 604
Car Washes ............................ 615
Carbon Monoxide Warning ...............98,515
Cargo (Vehicle Loading) ................... 523
Cargo Area Cover ....................... 280
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INDEX 665

Cooling System......................... 601
Adding Coolant (Antifreeze) ............. 603
Coolant Capacity ..................... 632
Coolant Level ....................... 605
Disposal of Used Coolant ............... 605
Drain, Flush, and Refill ................ 602
Inspection .......................... 601
Points to Remember .................. 606
Pressure Cap ........................ 604
Radiator Cap ....................... 604
Selection of Coolant (Antifreeze) .......602,632
Cruise Control (Speed Control) .............. 208
Cupholders ............................ 270
Customer Assistance ..................... 655
Data Recorder, Event ...................... 80
Daytime Running Lights ................... 191
Dealer Service .......................... 586
Defroster, Rear Window ................... 283 Defroster, Windshield
.................. 100,413
Diagnostic System, Onboard ................ 583
Dipsticks Automatic Transmission ................ 613
Oil (Engine) ........................ 587
Power Steering ...................... 464
Disabled Vehicle Towing ................... 574
Disposal Engine Oil ......................... 590
Used Engine Fluids ................... 590
Door Locks ............................. 34
Door Locks, Automatic .................... 36
Door Opener, Garage ..................... 250
Driving ............................... 457
Off-Pavement ....................... 457
Off-Road .......................... 457
Driving to Achieve Maximum Fuel Economy .... 323
E-85 Fuel ............................. 515
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INDEX 667