2007 JEEP GRAND CHEROKEE ESP

40 mph (64 km/h). At 40 mph (64 km/h), the normal ESP
stability function returns but TCS remains off. When the
vehicle speed drops below 35 mph (56 km/h), the ESP
system shuts off. ESP is off at low vehicle speeds in 4WD
low range so that it will not interfere with off-road
driving but ESP function returns to provide the stability
feature at speeds above 40 mph (64 km/h). TheESP/
TCS Indicator Lightwill always be illuminated in 4WD
low range when ESP is off.
NOTE:The “ESP OFF” message will display and the
audible chime will sound when the gear selector is
placed into the “P” (Park) position from any position
other than “P” (Park), and then moved out of the “P”
(Park) position. This will occur even if the message was
previously clearedWARNING!
With the ESP switched off, the enhanced vehicle
stability offered by ESP and ERM are unavailable. In
an emergency evasive maneuver, the ESP and ERM
systems will not engage to assist in maintaining
stability. The “Full Off” mode is intended for off-
highway or off-road use only.
ESP/BAS Warning Lamp and ESP/TCS Indicator
Light
The malfunction indicator lamp for the ESP is
combined with the BAS indicator. The yellow
“ESP/BAS Warning Lamp” and the yellow
“ESP/TCS Indicator Light” in the instrument
cluster both come on when the ignition switch is turned
to the “ON” position. They should go out with the engine
running.
UNDERSTANDING THE FEATURES OF YOUR VEHICLE 137
3

If the “ESP/BAS Warning Lamp” comes on
continuously with the engine running, a mal-
function has been detected in either the ESP or
the BAS system, or both. If this light remains on
after several ignition cycles, and the vehicle has been
driven several miles at speeds greater than 30 mph (48
km/h), see your authorized dealer as soon as possible to
have the problem diagnosed and corrected.
NOTE:
•TheESP/TCS Indicator Lightand theESP/BAS
Warning Lampcome on momentarily each time the
ignition switch is turned ON.
•Each time the ignition is turned ON, the ESP System
will be ON even if it was turned off previously.
•The ESP Control System will make buzzing or clicking
sounds when it is active. This is normal; the sounds
will stop when ESP becomes inactive following the
maneuver that caused the ESP activation.
REAR PARK ASSIST SYSTEM— IF EQUIPPED
The Rear Park Assist System provides visual and audible
indications of the distance between the rear fascia and the
detected obstacle when backing up. Refer to the Warning
Section and Note Section for limitations of this system
and recommendations.
The Rear Park Assist System will remember the last
system state (enabled or disabled) from the last ignition
cycle when the ignition is changed to the RUN/ON
position.
The Rear Park Assist System can be active only when the
shifter is in R (Reverse). If the Rear Park Assist System is
enabled at this shifter position, the system will be active
until the vehicle speed is increased to approximately 11
mph (18 km/h) or above. The system will be active again
if the vehicle speed is decreased to speeds less than
approximately 10 mph (16 km/h).
138 UNDERSTANDING THE FEATURES OF YOUR VEHICLE

When the obstacle is detected at a distance of about 59
inches (150 cm) from the rear fascia, the outermost LEDs
of the warning display will be ON with increased bright-
ness. Along with the LED, a half second tone will occur.
As the distance of the detected obstacle to the rear fascia
decreases, more LEDs are illuminated. When the warning
display has the first 5 yellow LEDs ON, the warning
display will actuate an intermittent tone for about 10
seconds. The radio will be muted while the tone is
actuated. The intermittent tone will increase in frequency
as each additional LED is lit.
When the detected obstacle is about 11.8 inches (30 cm)
from the rear fascia, the warning display will actuate a
continuous tone for about 10 seconds, and it will turn ON
all 8 LEDs, including both RED LEDs, on the correspond-
ing side of the display. The radio will be muted while the
tone is actuated.When the obstacle is less than 11.8 inches (30 cm) from
the rear fascia, the warning display will either have all 8
LEDs ON (obstacle detected) or it will have only the
outermost LEDs ON with decreased brightness (obstacle
not detected), depending on the location of the obstacle.
Enable/Disable the Rear Park Assist System
The Rear Park Assist System can be enabled and disabled
with a switch located in the switch bank of the instru-
ment panel.
140 UNDERSTANDING THE FEATURES OF YOUR VEHICLE

WARNING!
•Drivers must be careful when backing up even when
using the Rear Park Assist System. Always check
carefully behind your vehicle, look behind you, and
be sure to check for pedestrians, animals, other
vehicles, obstructions, and blind spots before back-
ing up. You are responsible for safety and must
continue to pay attention to your surroundings. Fail-
ure to do so can result in serious injury or death.
•Before using the Rear Park Assist System, it is
strongly recommended that the ball mount and hitch
ball assembly is disconnected from the vehicle when
the vehicle is not used for towing. Failure to do so
can result in injury or damage to vehicles or ob-
stacles because the hitch ball will be much closer to
the obstacle than the rear fascia when the warning
display turns the red LEDs ON. Also, the sensors
could detect the ball mount and hitch ball assembly,
depending on its size and shape, giving a false
indication that an obstacle is behind the vehicle.
NOTE:Clean all four Rear Park Assist 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 system might not detect an ob-
stacle behind the fascia or it could provide a false
indication that an obstacle is behind the fascia.
Assure objects are not within 11.8 inches (30 cm) from the
rear fascia while driving the vehicle. Failure to do so can
result in the system misinterpreting a close object as a
sensor problem, causing theSERVICE PARK ASSIST
SYSTEMmessage to be displayed in the instrument
cluster.
Ultrasonic noise from airbrakes of nearby trucks, air
powered jackhammers and air powered shop tools, to
name a few, will cause the Rear Park Assist System to be
disabled until the ultrasonic noise is no longer present.
UNDERSTANDING THE FEATURES OF YOUR VEHICLE 143
3

•Press and hold the two outer HomeLink buttons and
release only when the EVIC display shows “CHAN-
NELS CLEARED” (after 20 seconds). Release both
buttons. Do not hold for longer that 30 seconds.
HomeLink is now in the train (or learning) mode and
can be programmed at any time beginning withPro-
gramming- Step 2.
Reprogramming a Single HomeLink Button
To program a device to HomeLink using a HomeLink
button previously trained, follow these steps:
1. Press and hold the desired HomeLink button.Do
NOTrelease the button.
2. The EVIC display will show “CHANNEL X TRANS-
MIT” (where X is Channel 1, 2, or 3) for 20 seconds and
then change to “CHANNEL X TRAINING.” Without
releasing the HomeLink button, proceed withProgram-
mingStep 2.For questions or comments, contact HomeLink at:
www.homelink.com or 1-800-355-3515.
Security
If you sell your vehicle, be sure to erase the frequencies
by following the “Erasing HomeLink Buttons” instruc-
tions in this section.
This device complies with part 15 of FCC rules and with
RSS-210 of Industry Canada. Operation is subject to the
following conditions:
•This device may not cause harmful interference.
•This device must accept any interference that may be
received including interference that may cause undes-
ired operation.
NOTE:Changes or modifications not expressly ap-
proved by the party responsible for compliance could
void the user’s authority to operate the equipment.
152 UNDERSTANDING THE FEATURES OF YOUR VEHICLE

CAUTION!
•To prevent damage to the roof of your vehicle, DO NOT
carry any loads on the roof rack without cross rails in-
stalled. The load should be secured and placed on top of the
cross rails, not directly on the roof. If it is necessary to place
the load on the roof, place a blanket or some other protec-
tion between the load and the roof surface.
•To avoid damage to the roof rack and vehicle, do not exceed
the rated load capacity of your cross rail system or the roof
rack system maximum load capacity of 150 lbs (68 kg).
Always distribute heavy loads as evenly as possible and
secure the load appropriately.
•Long loads which extend over the windshield, such as
wood panels or surfboards, should be secured to both the
front and rear of the vehicle.
•Travel at reduced speeds and turn corners carefully when
carrying large or heavy loads on the roof rack. Wind forces,
due to natural causes or nearby truck traffic, can add
sudden upward loads. This is especially true on large flat
loads and may result in damage to the cargo or your vehicle.
WARNING!
Cargo must be securely tied before driving your
vehicle. Improperly secured loads can fly off the
vehicle, particularly at high speeds, resulting in
personal injury or property damage. Follow the roof
rack “Cautions” when carrying cargo on your roof
rack.
UNDERSTANDING THE FEATURES OF YOUR VEHICLE 167
3

8. Tachometer
The red segments indicate the maximum permissible
engine revolutions-per-minute (r.p.m. x 1000) for each
gear range. Before reaching the red area, ease up on the
accelerator.
9. Security Alarm System Indicator Light — If
Equipped
This light will flash rapidly for approximately 15 seconds
when the vehicle theft alarm is arming. The light will
flash at a slower speed continuously after the alarm is set.
The security light will also come on for about three
seconds when the ignition is first turned on.
10. Oil Pressure Warning Light
This light shows low engine oil pressure. The light
should turn on momentarily when the engine is
started. If the light turns on while driving, stop the
vehicle, and shut off the engine as soon as possible. A
continuous chime will sound when this light turns on.Do not operate the vehicle until the cause is corrected.
This light does not show how much oil is in the engine.
The engine oil level must be checked under the hood.
11. Electronic Stability Program (ESP) Indicator
Light/Traction Control System (TCS) Indicator Light
This indicator light starts to flash as soon as the
tires lose traction and the ESP system becomes
active. The “ESP/TCS Indicator Light” also
flashes when TCS is active. If the “ESP/TCS
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. The “ESP/TCS Indicator
Light” will flash any time the ESP or TCS is active and
helping to improve vehicle stability. If the “ESP/TCS
Indicator Light” is on solid, the ESP system has been
turned off by the driver or a temporary condition exists
that will not allow full ESP function.
UNDERSTANDING YOUR INSTRUMENT PANEL 177
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12. Tire Pressure Monitoring Telltale Light
Each tire, including the spare (if provided),
should be checked monthly when cold and
inflated to the inflation pressure recommended
by the vehicle manufacturer on the vehicle
placard or tire inflation pressure label. (If your vehicle
has tires of a different size than the size indicated on the
vehicle placard or tire inflation pressure label, you should
determine the proper tire inflation pressure for those
tires.)
As an added safety feature, your vehicle has been
equipped with a tire pressure monitoring system (TPMS)
that illuminates a “Tire Pressure Monitoring Telltale
Light” when one or more of your tires is significantly
under-inflated. Accordingly, when the “Tire Pressure
Monitoring Telltale Light” illuminates, you should stop
and check your tires as soon as possible, and inflate them
to the proper pressure. Driving on a significantly under-
inflated tire causes the tire to overheat and can lead to tirefailure. Under-inflation also reduces fuel efficiency and
tire tread life, and may affect the vehicle’s handling and
stopping ability.
Please note that the TPMS is not a substitute for proper
tire maintenance, and it is the driver ’s responsibility to
maintain correct tire pressure, even if under-inflation has
not reached the level to trigger illumination of the “Tire
Pressure Monitoring Telltale Light.”
The “Tire Pressure Monitoring Telltale Light” will illumi-
nate in the instrument cluster, and an audible chime will
be activated when one or more tire pressures is low. The
“Tire Pressure Monitoring Telltale Light” will flash on
and off for 60 seconds when a system fault is detected.
The flash cycle will repeat every ten minutes or until the
fault condition is removed and reset.
178 UNDERSTANDING YOUR INSTRUMENT PANEL