Jeep grand cherokee 2016 Operating Information Manual page 339

Cooling System
WARNING!
You or others can be badly burned by hot
engine coolant (antifreeze) or steam from
your radiator. If you see or hear steam com-
ing from under the hood, do not open the
hood until the radiator has had time to cool.
Never try to open a cooling system pressure
cap when the radiator or coolant bottle is hot.
Engine Coolant Checks
Check the engine coolant (antifreeze) protec-
tion every 12 months (before the onset of
freezing weather, where applicable). If the en-
gine coolant (antifreeze) is dirty, the system
should be drained, flushed, and refilled with
fresh OAT coolant (conforming to MS-12106) 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 tight-
ness of the connection at the coolant recovery
bottle and radiator. Inspect the entire system for
leaks.
With the engine at normal operating tempera-
ture (but not running), check the cooling system
pressure cap for proper vacuum sealing by
draining a small amount of engine coolant (an-
tifreeze) from the radiator drain cock. If the cap
is sealing properly, the engine coolant (anti-
freeze) will begin to drain from the coolant
recovery bottle. 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 sys-
tems properly could lead to severe internal
engine damage. If any coolant is needed to
be added to the system please contact your
local authorized dealer.
If the engine coolant (antifreeze) is dirty or
contains visible sediment, have an authorized
dealer clean and flush with OAT coolant (anti-
freeze) (conforming to MS-12106).
Refer to the "Service and Warranty Handbook"
for the proper maintenance intervals.
Selection Of Coolant
Refer to "Fluids, Lubricants, and Genuine Parts"
in "Maintaining Your Vehicle" for further informa-
tion.
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