2013 JEEP GRAND CHEROKEE ignition

ParkSensewill retain the last system state (enabled or
disabled) from the last ignition cycle when the ignition is
changed to the ON/RUN position.
ParkSense can be active only when the shift lever is in
REVERSE. If ParkSense is enabled at this shift lever
position, the system will remain active until the vehicle
speed is increased to approximately 11 mph (18 km/h) or
above. The system will become active again if the vehicle
speed is decreased to speeds less than approximately
10 mph (16 km/h).ParkSense Sensors
The four ParkSense sensors, located in the rear fascia/
bumper, monitor the area behind the vehicle that is
within the sensors’ field of view. The sensors can detect
obstacles from approximately 12 in (30 cm) up to 79 in
(200 cm) from the rear fascia/bumper in the horizontal
direction, depending on the location, type and orienta-
tion of the obstacle.
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UNDERSTANDING THE FEATURES OF YOUR VEHICLE 255

“Electronic Vehicle Information Center (EVIC)” in “Un-
derstanding Your Instrument Panel” for further informa-
tion. When the shift lever is moved to REVERSE and the
system is disabled, the EVIC will display the “PARK
ASSIST SYSTEM OFF” message for as long as the vehicle
is in REVERSE.
The ParkSenseswitch LED will be ON when
ParkSense is disabled or defective. The ParkSense 
switch LED will be OFF when the system is enabled.
Service The ParkSense Rear Park Assist System
When the ParkSenseRear Park Assist System is mal-
functioning, the instrument cluster will actuate a single
chime, once per ignition cycle, and it will display the
“CLEAN PARK ASSIST SENSORS” or the “SERVICE
PARK ASSIST SYSTEM” message. Refer to “Electronic
Vehicle Information Center (EVIC)” in “Understanding
Your Instrument Panel” for further information. When
the shift lever is moved to REVERSE and the system has detected a faulted condition, the EVIC will display the
“PARK ASSIST SYSTEM OFF” message for as long as the
vehicle is in REVERSE. Under this condition, ParkSense
will not operate.
If “CLEAN PARK ASSIST SENSORS” appears in the
Electronic Vehicle Information Center (EVIC) make sure
the outer surface and the underside of the rear fascia/
bumper is clean and clear of snow, ice, mud, dirt or other
obstruction and then cycle the ignition. If the message
continues to appear, see an authorized dealer.
If “SERVICE PARK ASSIST SYSTEM” appears in the
EVIC, see an authorized dealer.
Cleaning The ParkSense
System
Clean the ParkSense sensors with water, car wash soap
and a soft cloth. Do not use rough or hard cloths. Do not
scratch or poke the sensors. Otherwise, you could dam-
age the sensors.
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UNDERSTANDING THE FEATURES OF YOUR VEHICLE 261

ParkSenseSystem Usage Precautions
NOTE:
•Ensure that the rear bumper is free of snow, ice, mud,
dirt and debris to keep the ParkSense system operat-
ing properly.
• Jackhammers, large trucks, and other vibrations could
affect the performance of ParkSense.
• When you turn ParkSense off, the instrument cluster
will display “PARK ASSIST SYSTEM OFF.” Further-
more, once you turn ParkSense off, it remains off
until you turn it on again, even if you cycle the ignition
key.
• When you move the shift lever to the REVERSE
position and ParkSense is turned off, the EVIC will
display “PARK ASSIST SYSTEM OFF” message for as
long as the vehicle is in REVERSE. •
ParkSense, when on, will MUTE the radio when it is
sounding a tone.
• Clean the ParkSense sensors regularly, taking care not
to scratch or damage them. The sensors must not be
covered with ice, snow, slush, mud, dirt or debris.
Failure to do so can result in the system not working
properly. The ParkSense system might not detect an
obstacle behind the fascia/bumper, or it could provide
a false indication that an obstacle is behind the
fascia/bumper.
• Objects such as bicycle carriers, trailer hitches, etc.,
must not be placed within 12 in (30 cm) from the rear
fascia/bumper while driving the vehicle. Failure to do
so can result in the system misinterpreting a close
object as a sensor problem, causing the “SERVICE
PARK ASSIST SYSTEM” message to be displayed in
the EVIC .
262 UNDERSTANDING THE FEATURES OF YOUR VEHICLE

Before You Begin Programming HomeLink
Be sure that your vehicle is parked outside of the garage
before you begin programming.
For more efficient programming and accurate transmis-
sion of the radio-frequency signal it is recommended that
a new battery be placed in the hand-held transmitter of
the device that is being programmed to the HomeLink 
system.
Erase all channels before you begin programming. To
erase the channels place the ignition in the ON/RUN
position and press and hold the two outside HomeLink 
buttons (I and III) for up 20 seconds or until the red
indicator flashes. NOTE:
•
Erasing all channels should only be performed when
programming HomeLink for the first time. Do not
erase channels when programming additional buttons.
• If you have any problems, or require assistance, please
call toll-free 1–800–355–3515 or, on the Internet at
www.HomeLink.com for information or assistance.
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UNDERSTANDING THE FEATURES OF YOUR VEHICLE 271

1. Cycle the ignition to the ON/RUN position.
2. Place the hand-held transmitter 1 to 3 in (3 to 8 cm)away from the HomeLink button you wish to pro-
gram while keeping the HomeLink indicator light in
view.
3. Simultaneously press and hold both the HomeLink button you want to program and the hand-held trans-
mitter button.
4. Continue to hold both buttons and observe the indi- cator light. The HomeLink indicator will flash slowly
and then rapidly after HomeLink has received the
frequency signal from the hand-held transmitter. Re-
lease both buttons after the indicator light changes
from slow to rapid. 5. At the garage door opener motor (in the garage),
locate the “LEARN” or “TRAINING” button. This can
usually be found where the hanging antenna wire is
attached to the garage door opener/device motor.
Firmly press and release the “LEARN” or “TRAIN-
ING” button. On some garage door openers/devices
there may be a light that blinks when the garage door
opener/device is in the LEARN/TRAIN mode.
NOTE: You have 30 seconds in which to initiate the next
step after the LEARN button has been pressed.
6. Return to the vehicle and press the programmed HomeLink button twice (holding the button for two
seconds each time). If the garage door opener/device
activates, programming is complete.
NOTE: If the garage door opener/device does not acti-
vate, press the button a third time (for two seconds) to
complete the training.
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UNDERSTANDING THE FEATURES OF YOUR VEHICLE 273

To program the remaining two HomeLinkbuttons,
repeat each step for each remaining button. DO NOT
erase the channels.
Reprogramming A Single HomeLink Button
To reprogram a channel that has been previously trained,
follow these steps:
1. Cycle the ignition to the ON/RUN position.
2. Press and hold the desired HomeLink button until
the indicator light begins to flash after 20 seconds. Do
not release the button.
3. Without releasing the button proceed with “Program-
ming A Rolling Code” Step 2 and follow all remaining
steps.
Programming A Non-Rolling Code
For programming Garage Door Openers manufactured
before 1995.
1. Cycle the ignition to the ON/RUN position.
2. Place the hand-held transmitter 1 to 3 in (3 to 8 cm) away from the HomeLink button you wish to pro-
gram while keeping the HomeLink indicator light in
view.
3. Simultaneously press and hold both the HomeLink button you want to program and the hand-held trans-
mitter button.
4. Continue to hold both buttons and observe the indi- cator light. HomeLink indicator will flash slowly and
then rapidly after HomeLink has received the fre-
quency signal from the hand-held transmitter. Release
both buttons after the indicator light changes from
slow to rapid.
274 UNDERSTANDING THE FEATURES OF YOUR VEHICLE

5. Press and hold the programmed HomeLinkbutton
and observe the indicator light.
• If the indicator light stays on constantly, program-
ming is complete and the garage door/device should
activate when the HomeLink button is pressed.
• To program the remaining two HomeLink buttons,
repeat each step for each remaining button. DO NOT
erase the channels.
Reprogramming A Single HomeLink Button
To reprogram a channel that has been previously trained,
follow these steps:
1. Cycle the ignition to the ON/RUN position.
2. Press and hold the desired HomeLink button until
the indicator light begins to flash after 20 seconds. Do
not release the button.
3. Without releasing the button proceed with “Program-
ming A Non-Rolling Code” Step 2 and follow all
remaining steps.
Canadian/Gate Operator Programming
For programming transmitters in Canada/United States
that require the transmitter signals to “time-out” after
several seconds of transmission.
Canadian radio frequency laws require transmitter sig-
nals to time-out (or quit) after several seconds of trans-
mission – which may not be long enough for HomeLink 
to pick up the signal during programming. Similar to this
Canadian law, some U.S. gate operators are designed to
time-out in the same manner.
It may be helpful to unplug the device during the cycling
process to prevent possible overheating of the garage
door or gate motor.
1. Cycle the ignition to the ON/RUN position.
2.
Place the hand-held transmitter 1 to 3 in (3 to 8 cm)
away from the HomeLink button you wish to program
while keeping the HomeLink indicator light in view.
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UNDERSTANDING THE FEATURES OF YOUR VEHICLE 275

3. Continue to press and hold the HomeLinkbutton,
while you press and release (“cycle”), your hand-held
transmitter every two seconds until HomeLink has
successfully accepted the frequency signal. The indi-
cator light will flash slowly and then rapidly when
fully trained.
4. Watch for the HomeLink indicator to change flash
rates. When it changes, it is programmed. It may take
up to 30 seconds or longer in rare cases. The garage
door may open and close while you are programming.
5. Press and hold the programmed HomeLink button
and observe the indicator light.
• If the indicator light stays on constantly, program-
ming is complete and the garage door/device should
activate when the HomeLink button is pressed.
• To program the two remaining HomeLink buttons,
repeat each step for each remaining button. DO NOT
erase the channels. If you unplugged the garage door opener/device for
programming, plug it back in at this time.
Reprogramming A Single HomeLink
Button
To reprogram a channel that has been previously trained,
follow these steps:
1. Cycle the ignition to the ON/RUN position.
2. Press and hold the desired HomeLink button until
the indicator light begins to flash after 20 seconds. Do
not release the button.
3. Without releasing the button proceed with
“Canadian/Gate Operator Programming” Step 2 and
follow all remaining steps.
276 UNDERSTANDING THE FEATURES OF YOUR VEHICLE