2015 JEEP GRAND CHEROKEE brake sensor

•If the ACC sensor detects a vehicle ahead, ACC will
apply limited braking or acceleration (not to exceed
the original set speed) automatically to maintain a
preset following distance, while matching the speed of
the vehicle ahead.
The Cruise Control system has two control modes:
•Adaptive Cruise Control mode for maintaining an
appropriate distance between vehicles.
•Normal (fixed speed) electronic speed control mode
for cruising at a constant preset speed. For additional
information, refer to “Normal (Fixed Speed) Cruise
Control Mode” in this section.
NOTE:Normal (fixed speed) electronic speed control
will not react to preceding vehicles. Always be aware of
the mode selected.You can change the mode by using the Cruise Control
buttons. The two control modes function differently.
Always confirm which mode is selected.
WARNING!
•Adaptive Cruise Control (ACC) is a convenience
system. It is not a substitute for active driving
involvement. It is always the driver ’s responsibil-
ity to be attentive of road, traffic, and weather
conditions, vehicle speed, distance to the vehicle
ahead; and, most importantly, brake operation to
ensure safe operation of the vehicle under all road
conditions. Your complete attention is always re-
quired while driving to maintain safe control of
your vehicle. Failure to follow these warnings can
result in a collision and death or serious personal
injury.
(Continued)
188 UNDERSTANDING THE FEATURES OF YOUR VEHICLE

NOTE:FCW monitors the information from the forward
looking sensors as well as the Electronic Brake Controller
(EBC), to calculate the probability of a forward collision.
When the system determines that a forward collision is
probable, the driver will be provided with audible and
visual warnings and may provide a brake jerk warning. If
the driver does not take action based upon these progres-
sive warnings, then the system will provide a limited
level of active braking to help slow the vehicle and
mitigate the potential forward collision. If the driver
reacts to the warnings by braking and the system deter-
mines that the driver intends to avoid the collision by
braking but has not applied sufficient brake force, the
system will compensate and provide additional brake
force as required.When the system determines a collision with the vehicle
in front of you is no longer probable, the warning
message will be deactivated.
FCW Message
3
UNDERSTANDING THE FEATURES OF YOUR VEHICLE 215

Electronic Stability Control (ESC)
This system enhances directional control and stability of
the vehicle under various driving conditions. ESC cor-
rects for oversteering or understeering of the vehicle by
applying the brake of the appropriate wheel to assist in
counteracting the oversteer or understeer condition. En-
gine power may also be reduced to help the vehicle
maintain the desired path.
ESC uses sensors in the vehicle to determine the vehicle
path intended by the driver and compares it to the actual
path of the vehicle. When the actual path does not match
the intended path, ESC applies the brake of the appro-
priate wheel to assist in counteracting the oversteer or
understeer condition.
•Oversteer - when the vehicle is turning more than
appropriate for the steering wheel position.
•Understeer - when the vehicle is turning less than
appropriate for the steering wheel position.The “ESC Activation/Malfunction Indicator Light” lo-
cated in the instrument cluster will start to flash as soon
as the tires lose traction and the ESC system becomes
active. The “ESC Activation/Malfunction Indicator
Light” also flashes when the TCS is active. If the “ESC
Activation/Malfunction Indicator Light” begins to flash
during acceleration, ease up on the accelerator and apply
as little throttle as possible. Be sure to adapt your speed
and driving to the prevailing road conditions.
WARNING!
The Electronic Stability Control (ESC) cannot pre-
vent the natural laws of physics from acting on the
vehicle, nor can it increase the traction afforded by
prevailing road conditions. ESC cannot prevent col-
lisions, including those resulting from excessive
speed in turns, driving on very slippery surfaces, or
(Continued)
5
STARTING AND OPERATING 429

Trailer Sway Control (TSC)
TSC uses sensors in the vehicle to recognize an exces-
sively swaying trailer and will take the appropriate
actions to attempt to stop the sway. The system may
reduce engine power and apply the brake of the appro-
priate wheel(s) to counteract the sway of the trailer. TSC
will become active automatically once an excessively
swaying trailer is recognized. Note that TSC cannot stop
all trailers from swaying. Always use caution when
towing a trailer and follow the trailer tongue weight
recommendations. Refer to “Trailer Towing” in this sec-
tion for further information. When TSC is functioning,the “ESC Activation/Malfunction Indicator Light” will
flash, the engine power may be reduced and you may
feel the brakes being applied to individual wheels to
attempt to stop the trailer from swaying. TSC is disabled
when the ESC system is in the “Partial Off” mode.
WARNING!
If TSC activates while driving, slow the vehicle
down, stop at the nearest safe location, and adjust the
trailer load to eliminate trailer sway.5
STARTING AND OPERATING 435

Cavity Cartridge Fuse Micro Fuse Description
F07 40 Amp Green – Starter Solenoid
F08 20 Amp Blue – Emission Sensors (Diesel engine only)
F09 30 Amp Pink – 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 / Power Locks
F13 40 Amp Green – Blower Motor Front
F14 40 Amp Green – Body Controller #4 / Interior Lights #2
F17 30 Amp Pink – Headlamp Washer- If Equipped
F19 20 Amp Blue – Headrest Solenoid- If Equipped
F20 30 Amp Pink – Passenger Door Module
F22 20 Amp Blue – Engine Control Module
F23 30 Amp Pink – Interior Lights #1
F24 30 Amp Pink – Driver Door Module
F25 30 Amp Pink – Front Wipers
576 MAINTAINING YOUR VEHICLE

Cavity Cartridge Fuse Micro Fuse Description
F61 – 10 Amp Red Transmission Control Module/PM Sensor
(Diesel engine only)
F62 – 10 Amp Red Air Conditioning Clutch
F63 – 20 Amp Yellow Ignition Coils (Gas), Urea Heater (Diesel)
F64 – 25 Amp Clear Fuel 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 Yellow Rear Wiper Motor
F69 – 15 Amp Blue Spotlight Feed - If Equipped
F70 – 20 Amp Yellow Fuel Pump Motor
F71 – 30 Amp Green Audio Amplifier
F73 – 15 Amp Blue HID Headlamp RH - If Equipped
F74 – 20 Amp Yellow Brake Vacuum Pump - If Equipped
7
MAINTAINING YOUR VEHICLE 579