2014 JEEP GRAND CHEROKEE brakes

tire replacement procedures. Replacing tires with a
higher load carrying capacity will not increase the
vehicle’s GVWR and GAWR limits.
Towing Requirements — Trailer Brakes
WARNING!
•Do not connect trailer brakes to your vehicle’s
hydraulic brake lines. It can overload your brake
system and cause it to fail. You might not have
brakes when you need them and could have an
accident.
• Towing any trailer will increase your stopping
distance. When towing you should allow for addi-
tional space between your vehicle and the vehicle
in front of you. Failure to do so could result in an
accident.
CAUTION!
If the trailer weighs more than 1,000 lbs (454 kg)
loaded, it should have its own brakes and they
should be of adequate capacity. Failure to do this
could lead to accelerated brake lining wear, higher
brake pedal effort, and longer stopping distances.
• Do not interconnect the hydraulic brake system or
vacuum system of your vehicle with that of the trailer.
This could cause inadequate braking and possible
personal injury.
• An electronically actuated trailer brake controller is
required when towing a trailer with electronically
actuated brakes. When towing a trailer equipped with
a hydraulic surge actuated brake system, an electronic
brake controller is not required.
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STARTING AND OPERATING 523

•Trailer brakes are recommended for trailers over
1,000 lbs (454 kg) and required for trailers in excess of
1,653 lbs (750 kg).
Towing Requirements — Trailer Lights And Wiring
Whenever you pull a trailer, regardless of the trailer size,
stoplights and turn signals on the trailer are required for
motoring safety.
The Trailer Tow Package may include a four- and seven-
pin wiring harness. Use a factory approved trailer har-
ness and connector.
NOTE: Do not cut or splice wiring into the vehicles
wiring harness.
The electrical connections are all complete to the vehicle
but you must mate the harness to a trailer connector.
Refer to the following illustrations.
Four-Pin Connector
1 — Female Pins 4 — Park
2 — Male Pin 5 — Left Stop/Turn
3 — Ground 6 — Right Stop/Turn
524 STARTING AND OPERATING

Towing Tips
Before setting out on a trip, practice turning, stopping
and backing the trailer up in an area away from heavy
traffic.
Automatic Transmission
The DRIVE range can be selected when towing. The
transmission controls include a strategy to avoid frequent
shifting when towing. However, if frequent shifting does
occur while in DRIVE, you can use the Paddle Shift
switches to manually select a lower gear.
NOTE:Using a lower gear while operating the vehicle
under heavy loading conditions, will improve perfor-
mance and extend transmission life by reducing exces-
sive shifting and heat buildup. This action will also
provide better engine braking.
Seven-Pin Connector
1 — Battery 5 — Ground
2 — Backup Lamps 6 — Left Stop/Turn
3 — Right Stop/Turn 7 — Running Lamps
4 — Electric Brakes
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STARTING AND OPERATING 525

•Check the coolant freeze point in the radiator and in
the coolant expansion bottle. If engine coolant (anti-
freeze) needs to be added, the contents of the coolant
expansion bottle must also be protected against freez-
ing.
• If frequent engine coolant (antifreeze) additions are
required, the cooling system should be pressure tested
for leaks.
• Maintain engine coolant (antifreeze) concentration at a
minimum of 50% OAT coolant (conforming to MS-
12106) and distilled water for proper corrosion protec-
tion of your engine which contains aluminum compo-
nents.
• Make sure that the coolant expansion bottle overflow
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 coolant (antifreeze)
performance, poor gas mileage, and increased emis-
sions.
Brake System
In order to assure brake system performance, all brake
system components should be inspected periodically.
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
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596 MAINTAINING YOUR VEHICLE

WARNING!(Continued)
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. 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.WARNING!
•
Use only manufacturer’s recommended brake
fluid. Refer to “Fluids, Lubricants, and Genuine
Parts” in “Maintaining Your Vehicle” for further
information. 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.
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MAINTAINING YOUR VEHICLE 597

CavityCartridge Fuse Micro Fuse Description
F06 40 Amp Green Antilock Brakes/Electronic Stability Control
Pump
F07 40 Amp Green Starter Solenoid
F08 40 Amp Green Emission Sensors (Diesel engine only)
F09 40 Amp Green Diesel Fuel Heater (Diesel engine only)
F10 40 Amp Green Body Controller / Exterior Lighting #2
F11 30 Amp Pink Trailer Tow Electric Brake - If Equipped
F12 40 Amp Green Body Controller #3 / Interior Lights
F13 40 Amp Green Blower Motor Front
F14 40 Amp Green Body Controller #4 / Power Locks
F17 30 Amp Pink Headrest Release - If Equipped
F20 30 Amp Pink Passenger Door Module
F22 20 Amp Blue Engine Control Module
F23 30 Amp Pink Body Controller #1
F24 30 Amp Pink Driver Door Module
610 MAINTAINING YOUR VEHICLE

CavityCartridge Fuse Micro Fuse Description
F25 30 Amp Pink Front Wipers
F26 30 Amp Pink Antilock Brakes/Stability Control Module/
Valves
F28 20 Amp Blue Trailer Tow Backup Lights - If Equipped
F29 20 Amp Blue Trailer Tow Parking Lights - If Equipped
F30 30 Amp Pink Trailer Tow Receptacle - If Equipped
F32 30 Amp Pink Drive Train Control Module
F34 30 Amp Pink Slip Differential Control
F35 30 Amp Pink Sunroof - If Equipped
F36 30 Amp Pink Rear Defroster
F37 30 Amp Pink Rear Blower - If Equipped
F38 30 Amp Pink Power Inverter 115V AC - If Equipped
F39 30 Amp Pink Power Liftgate - If Equipped
F40 10 Amp RedDaytime Running Lights
F42 20 Amp Yellow Horn
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MAINTAINING YOUR VEHICLE 611

CavityCartridge Fuse Micro Fuse Description
F64 25 Amp NaturalFuel Injectors / Powertrain
F66 10 Amp Red Sunroof / Passenger Window Switches / Rain
Sensor
F67 15 Amp Blue CD / DVD / Bluetooth Hands-free Module -
If Equipped
F68 20 Amp YellowRear Wiper Motor
F70 20 Amp YellowFuel Pump Motor
F71 30 Amp GreenAudio Amplifier
F73 15 Amp BlueHID Headlamps Right
F74 20 Amp Yellow Brake Vacuum Pump - If Equipped
F76 10 Amp Red Antilock Brakes/Electronic Stability Control
F77 10 Amp Red Drivetrain Control Module/Front Axle
Disconnect Module
F78 10 Amp Red Engine Control Module / Electric Power
Steering - If Equipped
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MAINTAINING YOUR VEHICLE 613