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2020 Jeep Grand Cherokee Owners Manual - PARKSENSE REAR PARK ASSIST — IF EQUIPPED



PARKSENSE REAR PARK ASSIST — IF EQUIPPED

The ParkSense Rear Park Assist system provides visual and audible indications of the distance between the rear fascia and a detected obstacle when backing up (e.g. during a parking maneuver). If your vehicle is equipped with an auto- matic transmission, the vehicle brakes may be automatically applied and released when performing a reverse parking maneuver if the system detects a possible collision with an obstacle.

NOTE:

The driver can override the automatic braking function by pressing the gas pedal, turning ParkSense off via Park- Sense switch, or changing the gear while the automatic brakes are being applied.
Automatic brakes are not available if ESC is not available.
Automatic brakes are not available if the vehicle is in 4LO.
Automatic brakes will not be available if there is a faulted condition detected with the ParkSense Park Assist system or the Braking System Module.

 

The automatic braking function may only be applied if the vehicle deceleration is not enough to avoid colliding with a detected obstacle.
The automatic braking function may not be applied fast enough for obstacles that move toward the rear of the vehicle from the left and/or right sides.
The automatic braking function can be enabled/disabled from the Customer-Programmable Features section of the Uconnect System.
ParkSense will retain its last known configuration state for

the automatic braking function through ignition cycles.

The automatic braking function is intended to assist the driver in avoiding possible collisions with detected obstacles when backing up in REVERSE gear.

NOTE:

The driver is always responsible for controlling the vehicle.
The system is provided to assist the driver and not to substitute the driver.
The driver must stay in full control of the vehicle's acceler- ation and braking and is responsible for the vehicle's movements.

Refer to “ParkSense System Usage Precautions” in this section for limitations of this system and recommendations.

ParkSense will 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 gear selector is in REVERSE. If ParkSense is enabled at this gear selector posi- tion, the system will remain active until the vehicle speed is increased to approximately 7 mph (11 km/h) or above. When in REVERSE and above the system's operating speed, a warning will appear within the instrument cluster display indicating the vehicle speed is too fast. The system will become active again if the vehicle speed is decreased to speeds less than approximately 6 mph (9 km/h).

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 inches (30 cm) up to 79 inches (200 cm) from the rear fascia/bumper in the horizontal direction, depending on the location, type and orientation of the obstacle.

The ParkSense display is shown in the instrument cluster display as long as the vehicle is in REVERSE.

The system will indicate a detected obstacle by showing a single arc in the left and/or right rear regions based on the obstacle’s distance and location relative to the vehicle.

If an obstacle is detected in the left and/or right rear region, the display will show a single arc in the left and/or right rear region and the system will produce a tone. As the vehicle moves closer to the obstacle, the display will show the single arc moving closer to the vehicle and the tone will change from a single 1/2 second tone to slow, to fast, to continuous.

Single 1/2 Second Tone

 

Slow Tone

Slow Tone Fast Tone

 

Fast Tone Continuous Tone

The vehicle is close to the obstacle when the warning display shows one flashing arc and sounds a continuous tone. The following chart shows the warning alert operation when the system is detecting an obstacle:

WARNING ALERTS

Rear Distance (inches/cm)

Greater than 79 inches

(200 cm)

79-59 inches

(200-150 cm)

59-47 inches

(150-120 cm)

47-39 inches

(120-100 cm)

39-25 inches

(100-65 cm)

25-12 inches

(65-30 cm)

Less than 12 inches

(30 cm)

Audible Alert Chime

None

Single 1/2 Second Tone

Slow

Slow

Fast

Fast

Continuous

Arcs-Left

None

None

None

None

None

2nd Flashing

1st Flashing

Arcs-Center

None

6th Solid

5th Solid

4th Solid

3rd Flashing

2nd Flashing

1st Flashing

Arcs-Right

None

None

None

None

None

2nd Flashing

1st Flashing

Radio Volume

Reduced

No

Yes

Yes

Yes

Yes

Yes

Yes

NOTE:

ParkSense will reduce the volume of the radio, if on, when the system is sounding an audio tone.

Adjustable Chime Volume Settings

Rear chime volume settings can be selected from the Customer-Programmable Features section of the Uconnect

System, refer to “Uconnect Settings” in “Multimedia” for further information.

The chime volume settings include low, medium, and high. The factory default volume setting is medium.

ParkSense will retain its last known configuration state through ignition cycles.

The ParkSense Warning screen will only be displayed if Sound and Display is selected from the Customer - Program- mable Features section of the Uconnect System.

Refer to "Uconnect Settings” in “Multimedia” for further information.

The ParkSense Warning screen is located within the instru- ment cluster display. It provides visual warnings to indicate the distance between the rear fascia/bumper and the detected obstacle.

Refer to “Instrument Cluster Display” in “Getting To Know Your Instrument Panel” for further information.

ParkSense can be enabled and disabled with the ParkSense switch.

When the ParkSense switch is pushed to disable the system, the instrument cluster will display the “PARKSENSE OFF” message for approximately five seconds. When the gear selector is moved to REVERSE and

 

the system is disabled, the instrument cluster display will display the “PARKSENSE OFF” message for as long as the vehicle is in REVERSE.

Refer to “Instrument Cluster Display” in “Getting To Know Your Instrument Panel” for further information.

The ParkSense switch LED will be on when ParkSense is disabled or requires service. The ParkSense switch LED will be off when the system is enabled. If the ParkSense switch is pushed, and the system requires service, the ParkSense switch

LED will blink momentarily, and then the LED will be on. 5

During vehicle start up, when the ParkSense Rear Park Assist system has detected a faulted condition, the instru- ment cluster will actuate a single chime, once per ignition cycle, and it will display the “PARKSENSE UNAVAILABLE WIPE REAR SENSORS” or the “PARKSENSE UNAVAIL-

ABLE SERVICE REQUIRED” message. Refer to “Instrument Cluster Display” in “Getting To Know Your Instrument Panel” for further information. When the gear selector is moved to REVERSE and the system has detected a faulted condition, the instrument cluster display will display the

"PARKSENSE UNAVAILABLE WIPE REAR SENSORS" or "PARKSENSE UNAVAILABLE SERVICE REQUIRED"

message for as long as the vehicle is in REVERSE. Under this condition, ParkSense will not operate.

If “PARKSENSE UNAVAILABLE WIPE REAR SENSORS”

appears in the instrument cluster display 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 “PARKSENSE UNAVAILABLE SERVICE REQUIRED”

appears in the instrument cluster display, see an authorized dealer.

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 damage the sensors.

NOTE:

Ensure that the rear bumper is free of snow, ice, mud, dirt and debris to keep the ParkSense system operating prop- erly.
Jackhammers, large trucks, and other vibrations could affect the performance of ParkSense.
When you turn ParkSense off, the instrument cluster will display “PARKSENSE OFF.” Furthermore, once you turn ParkSense off, it remains off until you turn it on again, even if you cycle the ignition.
When you move the gear selector to the REVERSE position and ParkSense is turned off, the instrument cluster display will display “PARKSENSE OFF” message for as long as the vehicle is in REVERSE.
ParkSense, when on, will reduce the volume of 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 Park-

Sense 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.

Use the ParkSense switch to turn the ParkSense system off if objects such as bicycle carriers, trailer hitches, etc. are placed within 12 inches (30 cm) from the rear fascia/ bumper. Failure to do so can result in the system misinter- preting a close object as a sensor problem, causing the “PARKSENSE UNAVAILABLE SERVICE REQUIRED” message to be displayed in the instrument cluster display.
ParkSense should be disabled when the liftgate is in the 5

open position and the vehicle is in REVERSE. An open lift- gate could provide a false indication that an obstacle is behind the vehicle.


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