2015 JEEP GRAND CHEROKEE brake light

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

Engine Oil Filter Replacement
Residual oil in the housing may spill from the housing
when the new filter is installed if the residual oil is not
either removed from the housing or enough time has not
elapsed to allow the oil to drain back into the engine.
When servicing the oil filter on this engine, carefully
remove the filter and use a suction gun to remove any
residual oil left in the housing or wait about 30 minutes
for the oil to drain back into the engine.
Once A Month Or Before A Long Trip:
•Check engine oil level
•Check windshield washer fluid level
•Check the tire inflation pressures and look for unusual
wear or damage•Check the fluid levels of the coolant reservoir, brake
master cylinder, power steering and transmission as
needed
•Check function of all interior and exterior lights
Required Maintenance
Refer to the Maintenance Schedules on the following
pages for required maintenance.
6
MAINTENANCE SCHEDULE 103

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

Fluid Level Checks
Brake................................94
Fluids, Lubricants And Genuine Parts............97
Fog Lights...............................14
Fuel...................................46
Adding...............................65
Diesel..............................46, 97
Filter.................................81
Gauge................................18
Requirements...........................46
Specifications...........................47
Tank Capacity..........................96
Fueling.................................65
Gauges
Coolant Temperature.....................16
Fuel.................................18
Speedometer...........................14
Tachometer............................13Voltmeter..............................41
Gross Axle Weight Rating....................52
Gross Vehicle Weight Rating..................51
High Beam Indicator........................14
Hitches
Trailer Towing..........................55
Instrument Cluster.......................12, 13
Intervention Regeneration Strategy...........28, 87
Lights
AirBag ...............................21
Anti-Lock.............................13
Brake Warning..........................17
Fog ..................................14
High Beam Indicator......................14
Malfunction Indicator (Check Engine)..........14
Seat Belt Reminder.......................13
114 INDEX