2012 JEEP GRAND CHEROKEE ignition

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.
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UNDERSTANDING THE FEATURES OF YOUR VEHICLE 235

NOTE:HomeLink is disabled when the Vehicle Secu-
rity Alarm is active.
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.
HomeLink Buttons/Sunvisor/Headliner
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UNDERSTANDING THE FEATURES OF YOUR VEHICLE 243

Programming A Rolling Code
For programming garage door openers that were manu-
factured after 1995. These garage door openers can be
identified by the “LEARN” or “TRAIN” button located
where the hanging antenna is attached to the garage door
opener. It is NOT the button that is normally used to
open and close the door. The name and color of the
button may vary by manufacturer.1. Turn the ignition switch to the ON/RUN position.
2. Place the hand-held transmitter 1 to 3 in (3 to 8 cm)
away from the HomeLinkbutton you wish to program
while keeping the HomeLink indicator light in view.
Training The Garage Door Opener
1 — Door Opener
2 — Training Button
244 UNDERSTANDING THE FEATURES OF YOUR VEHICLE

3. Simultaneously press and hold both the Homelink
button you want to program and the hand-held transmit-
ter button.
4. Continue to hold both buttons and observe the indi-
cator light. The Homelinkindicator 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.
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 “TRAINING” 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
activate, press the button a third time (for two seconds) to
complete the training.
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. Turn the ignition switch to the ON/RUN position.
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UNDERSTANDING THE FEATURES OF YOUR VEHICLE 245

2. Press and hold the desired HomeLinkbutton 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. Turn the ignition switch 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.
3. Simultaneously press and hold both the Homelink
button you want to program and the hand-held transmit-
ter 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 fre-
quency signal from the hand-held transmitter. Release
both buttons after the indicator light changes from slow
to rapid.
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.
246 UNDERSTANDING THE FEATURES OF YOUR VEHICLE

Reprogramming A Single HomeLinkButton
To reprogram a channel that has been previously trained,
follow these steps:
1. Turn the ignition switch 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 remain-
ing 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. Turn the ignition switch 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.
3. Continue to press and hold the HomeLink button,
while you press and release (“cycle”), your hand-held
transmitter every two seconds until HomeLink has
successfully accepted the frequency signal. The indicator
light will flash slowly and then rapidly when fully
trained.
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UNDERSTANDING THE FEATURES OF YOUR VEHICLE 247

4. Watch for the HomeLinkindicator 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. Turn the ignition switch 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.
Using HomeLink
To operate, press and release the programmed
HomeLink button. Activation will now occur for the
programmed device (i.e., garage door opener, gate opera-
tor, security system, entry door lock, home/office light-
ing, etc.,). The hand-held transmitter of the device may
also be used at any time.
248 UNDERSTANDING THE FEATURES OF YOUR VEHICLE

POWER SUNROOF — IF EQUIPPED
The power sunroof switch is located between the sun
visors on the overhead console.WARNING!
•Never leave children in a vehicle with the key in
the ignition switch. Occupants, particularly unat-
tended children, can become entrapped by the
power sunroof while operating the power sunroof
switch. Such entrapment may result in serious
injury or death.
•In a collision, there is a greater risk of being
thrown from a vehicle with an open sunroof. You
could also be seriously injured or killed. Always
fasten your seat belt properly and make sure all
passengers are properly secured too.
•Do not allow small children to operate the sun-
roof. Never allow your fingers, other body parts, or
any object to project through the sunroof opening.
Injury may result.
Power Sunroof Switch
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UNDERSTANDING THE FEATURES OF YOUR VEHICLE 251