2015 JEEP GRAND CHEROKEE radiator cap

CAUTION!
It is essential when replacing the cables on the
battery that the positive cable is attached to the
positive post and the negative cable is attached to the
negative post. Battery posts are marked (+) positive
and negative (-) and are identified on the battery
case. Also, if a “fast charger” is used while the battery
is in vehicle, disconnect both vehicle battery cables
before connecting the charger to the battery. Do not
use a “fast charger” to provide starting voltage.
WARNING!
Battery posts, terminals, and related accessories con-
tain lead and lead compounds. Always wash hands
after handling the battery.
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 coming 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 is hot.
Engine Coolant Checks
Check the engine coolant (antifreeze) protection every 12
months (before the onset of freezing weather, where
applicable). If the engine coolant (antifreeze) is dirty or
rusty in appearance, the system should be drained,
flushed and refilled with fresh coolant. Check the front of
the A/C condenser (if equipped) or radiator for any
accumulation of bugs, leaves, etc. If dirty, clean by gently
88 MAINTAINING YOUR VEHICLE

spraying water from a garden hose vertically down the
face of the A/C condenser (if equipped) or the back of the
radiator core.
Check the engine cooling system hoses for brittle rubber,
cracking, tears, cuts and tightness of the connection at the
coolant recovery bottle and radiator. Inspect the entire
system for leaks.
With the engine at normal operating temperature (but
not running), check the cooling system pressure cap for
proper vacuum sealing by draining a small amount of
engine coolant (antifreeze) from the radiator drain cock.
The radiator drain cock is located in the lower radiator
tank. If the cap is sealing properly, the engine coolant
(antifreeze) will begin to drain from the coolant expan-
sion bottle. DO NOT REMOVE THE COOLANT PRES-
SURE CAP WHEN THE COOLING SYSTEM IS HOT.Cooling System — Drain Flush And Refill
If the engine coolant (antifreeze) is dirty or contains a
considerable amount of sediment, clean and flush with a
reliable cooling system cleaner. Follow with a thorough
rinsing to remove all deposits and chemicals. Properly
dispose of old engine coolant (antifreeze).
Refer to the “Maintenance Schedule” for the proper
maintenance intervals.
Selection Of Coolant
Refer to “Fluids, Lubricants, And Genuine Parts” in
“Maintaining Your Vehicle” for further information.
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MAINTAINING YOUR VEHICLE 89

Cooling System Pressure Cap
The cap must be fully tightened to prevent loss of engine
coolant (antifreeze), and to ensure that the engine coolant
(antifreeze) will return to the radiator from the coolant
expansion bottle.
The cap should be inspected and cleaned if there is any
accumulation of foreign material on the sealing surfaces.
WARNING!
•Do not open hot engine cooling system. Never add
engine coolant (antifreeze) when the engine is
overheated. Do not loosen or remove the cap to cool
an overheated engine. Heat causes pressure 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.
(Continued)
WARNING!(Continued)
•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 disposal
rules for your community. To prevent ingestion by ani-
mals or 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.
92 MAINTAINING YOUR VEHICLE

Charge Air Cooler — Inter-Cooler
The charge air cooler is positioned in front of the radiator
and the air conditioner condenser. Air enters the engine
through the air cleaner and passes through the turbo-
charger, where it is pressurized. This pressurized air
rapidly reaches high temperature. The air is then directed
through a hose to the charge air cooler and through
another hose to the intake manifold of the engine. This
cooling process enables more efficient burning of fuel
resulting in fewer emissions.
To guarantee optimum performance of the system, keep
the surfaces of the charge air cooler, condenser and
radiator clean and free of debris. Periodically check the
hoses leading to and from the charge air cooler for cracks
or loose clamps resulting in loss of pressure and reduced
engine performance.
Brake System
Brake Master Cylinder — Brake Fluid Level Check
The fluid level of the master cylinder should be checked
when performing under the hood service, or immedi-
ately if the “Brake System Warning Light” indicates
system failure.
The brake master cylinder has a translucent plastic
reservoir. On the outboard side of the reservoir, there is a
“MAX” mark and a “MIN” mark. The fluid level must be
kept within these two marks. Do not add fluid above the
full mark because leakage may occur at the cap.
With disc brakes, the fluid level can be expected to fall as
the brake linings wear. However, an unexpected drop in
fluid level may be caused by a leak and a system check
should be conducted.
Refer to “Fluids, Lubricants, And Genuine Parts” in
“Maintaining Your Vehicle” for further information.
94 MAINTAINING YOUR VEHICLE

Adding Engine Coolant (Antifreeze).............90
Adding Fuel..............................65
Air Bag Light.............................21
Air Cleaner, Engine (Engine Air Cleaner Filter).....78
Air Conditioning Filter......................79
Alarm (Security Alarm)......................21
Antifreeze (Engine Coolant)...................89
Capacities.............................96
Disposal..............................92
Anti-Lock Warning Light.....................13
Automatic Transmission
Fluid Type.............................99
Axle Fluid...............................99
Battery.................................87
Brake Fluid..............................99
Brake System.............................94
Fluid Check............................94
Master Cylinder.........................94Warning Light..........................17
Capacities, Antifreeze (Engine Coolant)...........96
Capacities, Fluid...........................96
Caps, Filler
Oil (Engine)............................77
Radiator (Coolant Pressure).................92
Charge Air Cooler.........................94
Coolant Pressure Cap (Radiator Cap)............92
Cooling System...........................88
Adding Coolant (Antifreeze)................90
Coolant Capacity........................96
Coolant Level...........................88
Disposal Of Used Coolant..................92
Drain, Flush, And Refill...................89
Points To Remember......................93
Pressure Cap...........................92
Radiator Cap...........................92
112 INDEX

Security Alarm..........................21
Service Engine Soon (Malfunction Indicator).....14
Tire Pressure Monitoring (TPMS).............18
Maintenance Procedures.....................75
Maintenance Schedule......................102
Malfunction Indicator Light (Check Engine).......14
Manual Transmission
Lubricant Selection.......................99
New Vehicle Break-In Period..................10
Odometer...............................20
Trip..................................20
Oil, Engine..........................26, 76, 97
Capacity..............................96
Change Interval.........................77
Dipstick...............................76
Disposal..............................78Filter..............................78, 97
Filter Disposal..........................78
Materials Added To......................78
Recommendation........................76
Viscosity..............................77
Power Steering Fluid.......................99
Radiator Cap (Coolant Pressure Cap)..........89, 92
Remote Starting System......................8
Schedule, Maintenance.....................102
Seat Belts
Reminder..............................13
Security Alarm............................21
Selection Of Coolant (Antifreeze)...............97
Signals, Turn.............................14
Speedometer.............................14
Starting.................................37
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INDEX 115