2006 JEEP GRAND CHEROKEE Owners Manual

or gravel conditions and more wheel spin than ESP
would normally allow is required to gain traction. To
turn ESP on again, momentarily depress theESP Control
Switch. This will restore the normal“ESP On”mode of
operation.NOTE:To improve the vehicle’s traction when driving
with snow chains, or starting off in deep snow, sand, or
gravel, it may be desirable to switch to the“Partial Off”
mode by pressing the ESP switch. Once the situation
requiring ESP to be switched to the“Partial Off”mode is
overcome, turn ESP back on by momentarily depressing
the“ESP Control Switch”. This may be done while the
vehicle is in motion.
Full Off
This mode is intended for off-highway or off-road use
when ESP stability features could inhibit vehicle maneu-
verability due to trail conditions. This mode is entered by
depressing and holding the“ESP Control Switch”for 5
seconds when the vehicle is stopped and the engine is
running. In this mode, all ESP and TCS stability features
are turned off except for the“limited slip”feature de-
scribed in the TCS section. After 5 seconds, a chime will
sound, theESP/TCS Indicator Lightwill illuminate,
and theESP OFFmessage will appear in the Electronic
ESP Control Switch
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Vehicle Information Center (EVIC). Refer to“Electronic
Vehicle Information Center (EVIC)”in Section 4 of this
manual. (See page 187 for more information.) To turn ESP
on again, momentarily depress theESP Control Switch.
This will restore the normal“ESP On”mode of operation.
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 cleared.WARNING!
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”ESP mode is intended for
off-highway or off-road use only.
4WD Low Range
Partial Off
This is the normal operating mode for ESP in 4WD low
range. Whenever the vehicle is started in 4WD low range,
or the transfer case (if equipped) is shifted from 4WD
high range or neutral to 4WD low range, the ESP system
will be in this mode. In 4WD low range, ESP and TCS,
except for the“limited slip”feature described in the TCS
section, are turned off until the vehicle reaches a speed of
138 UNDERSTANDING THE FEATURES OF YOUR VEHICLE

30 mph (48 km/h). At 30 mph (48 km/h), the normal ESP
stability function returns but TCS remains off. When the
vehicle speed drops below 25 mph (40 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 30 mph (48 km/h). TheESP/
TCS Indicator Lightwill always be illuminated in 4WD
low range when ESP is off.
Full Off
This mode is intended for off-highway or off-road use
when ESP stability features could inhibit vehicle maneu-
verability due to trail conditions. This mode is entered by
depressing and holding the“ESP Control Switch”for 5
seconds when the vehicle is stopped and the engine is
running. In this mode, all ESP and TCS stability features
are turned off except for the“limited slip”feature de-
scribed in the TCS section. After 5 seconds, a chime will
sound, and the“ESP OFF”message will appear in theElectronic Vehicle Information Center (EVIC). Refer to
“Electronic Vehicle Information Center (EVIC)”in Sec-
tion 4 of this manual. (See page 187 for more informa-
tion.) To turn ESP on again, momentarily depress the
“ESP Control Switch”. This will restore the normal“Par-
tial Off”mode of operation in 4wd low range.
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 cleared.
UNDERSTANDING THE FEATURES OF YOUR VEHICLE 139
3

WARNING!
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.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.
140 UNDERSTANDING THE FEATURES OF YOUR VEHICLE

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).
Rear Park Assist Sensors
The four Rear Park Assist Sensors, located in the rear
fascia, monitor the area behind the vehicle that is within
the sensors’field of view. The monitored area seems oval
in shape.
The sensors can detect obstacles from approximately 11.8
inches (30 cm) up to 59 inches (150 cm) from the rear
fascia in the horizontal direction, depending on the
location and orientation of the obstacle and the type of
obstacle.
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Rear Park Assist Warning Display
The Rear Park Assist Warning Display, located in the
headliner near the flipper glass, provides both visual and
audible warnings to indicate the distance between the
rear fascia and the detected obstacle.When the ignition is changed to the RUN/ON position,
the warning display will turn ON all of its LEDs for
about 1 second. Each side of the warning display has 6
yellow and 2 red LEDs. The vehicle is close to the obstacle
when the red LED is ON.
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.
Rear Park Assist Display
142 UNDERSTANDING THE FEATURES OF YOUR VEHICLE

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.
Rear Park Assist Switch
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When the switch is pressed to disable the system, the
instrument cluster will display thePARK ASSIST DIS-
ABLEDmessage. Refer to“Electronic Vehicle Informa-
tion Center (EVIC)”in Section 4 of this manual. When the
shifter is changed to R (Reverse) and the system is
disabled, the instrument cluster will actuate a single
chime, once per ignition cycle, and it will display the
message.
The Rear Park Assist Switch LED will be ON when the
Rear Park Assist System is disabled or defective. The
Rear Park Assist Switch LED will be OFF when the
system is enabled.Service the Rear Park Assist System
When the Rear Park Assist System is defective, the
instrument cluster will actuate a single chime, once per
ignition cycle, and it will display theSERVICE PARK
ASSIST SYSTEMmessage. Refer to“Electronic Vehicle
Information Center (EVIC)”in Section 4 of this manual.
Cleaning the Rear Park Assist System
Clean the Rear Park Assist 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
damage the sensors.
144 UNDERSTANDING THE FEATURES OF YOUR VEHICLE