User Manual - Page 276

For 2024 DODGE DURANGO.

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coolant in open containers or allow it to remain in
puddles on the ground, clean up any ground spills
immediately. If ingested, seek emergency assistance
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 satisfac-
tory, 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/
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 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 mini-
mum of 50% OAT coolant (conforming to MS.90032)
and distilled water for proper corrosion protection of
your engine which contains aluminum components.
Make sure that the coolant expansion bottle over-
flow 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 engine cooling perfor-
mance, 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
page 253.
WARNING!
Riding the brakes can lead to brake failure and possi-
bly a collision. Driving with your foot resting or riding
on the brake pedal can result in abnormally high
(Continued)
WARNING!
brake temperatures, excessive lining wear, and pos-
sible 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
whenever the vehicle is serviced, or immediately if the
Brake System Warning Light is on. 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, fluid level can be
expected to fall as the brake pads wear. Brake fluid
level should be checked when pads are replaced. If the
brake fluid is abnormally low, check the system for
leaks. For further information
page 305.
WARNING!
Use only the manufacturer’s recommended brake
fluid
page 305. 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 an open container absorbs moisture from
the air resulting in a lower boiling point. This may
(Continued)
274 SERVICING AND MAINTENANCE
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