Also available as an aftermarket kit from Mopar
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 11.2 miles/hr (18 km/h) or above. The system will be active again if the vehicle speed is decreased to speeds less than E approximately 9.94 miles/hr (16 km/h).
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.
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 I sec. 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 brightness. As the distance of the detected obstacle to the rear fascia decreases, more LEDs are illuminated. The warning display will not actuate a tone when only yellow LEDs are ON. When the warning display has the first 7 LEDs ON, including 1 red LED, the warning display will actuate an intermittent tone for about 3 sec. The radio will be muted while the tone is actuated. 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 3 sec and it will turn ON all 8 LEDs, including both RED LEDs, on the corresponding 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.
The Rear Park Assist System can be enabled and disabled with a switch located in the switch bank of the instrument panel. When the switch is pressed to disable the system, the instrument cluster will display the "PARK ASSIST DISABLED" message. 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.
When the Rear Park Assist System is defective, the instrument cluster will actuate a single chime, once per ignition cycle, and it will display the "SERVICE PARK ASSIST SYSTEM" message.
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.
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 the "SERVICE PARK ASSIST SYSTEM" message 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.
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(same parts as factory install) (24mm and 30mm holesaws for sensors and display installation) (19mm holesaw for wire loom feed. 3/4" holesaw will also work)
The installation notes shown below are also printed in the available PDF installation manual (link below). They are reprinted here for convenience and to give anyone interesting in buying this system an idea of what is involved for the installation. Tools required are shown below on the scan of page one of the manual.
Although not a particularly difficult installation, it is best left for professionals or those who have experience in this type of automotive work. Installation involves removing interior trim panels, removing the rear fascia, drilling holes, and soldering a couple of wires to the taillamp harness. It is highly suggested to puchase the Mopar holesaws as being metric they may be hard to find at the local hardware store.
2. Remove the right (passenger's side) D-pillar trim panel.
3. Install audio/visual display to the right D-pillar trim panel as shown.
4. Remove the lower liftgate trim panel.
5. Remove the right C-pillar trim panel.
6.Remove the right inner quarter trim panel.
7. Remove the rear fascia and place it on a protected surface.
8. If painting the sensors to match the vehicle color is desired by the customer, refer to the following four steps:
Step 2: Mix Sikkens Brand Autobase with Diluent 1:1.
Step 3: Fog-spray 1 coat of Autobase mixture. Wait 5 minutes. Wet-spray another coat of Autobase mixture. Let dry for 25 minutes.
Step 4: While Autobase is still wet, spray 1 coat of Autoclear (Varnish/Curing Agent/Diluent = 5:2 0:15). Let dry for 15 minutes. Place sensors in heated drying chamber for 60 minutes at 52°c.
9. Install sensors as shown and fully engage the clips. Attach the sensor cables.
10. Remove the right taillamp. Remove sealer patch from lower access hole in the taillamp opening panel.
11. Drill an access hole in the right inner quarter panel as shown.
12. Trim the rear fascia support in two places to allow clearance for the inboard sensor assemblies.
13. Re-install rear fascia while carefully pulling the sensor cable connectors one at a time into the vehicle. Keep cables away from sharp edges and ensure they are not pinched under the fascia. Replace any damaged plastic pop rivets from stock.
14. Route power harness wires through the drilled access hole and out of the taillamp opening access hole.
15. Determine which taillamp wires have the ground and back-up lamp signals. Disconnect the negative battery cable and perform center splicing as shown.
16. Use RTV sealant on any altered grommets to prevent water leaks.
17. Make all connections to the controller. Install controller using hook and loop patches.
12. Loop up slack in cables and wires. Apply tie straps and tape and stow away neatly. Do not kink or tightly coil the cables.
18. Re-install sealer patch to the taillamp access hole.
19. Use foam tape around cables and wires at both access holes to prevent leaks.
20. Connect audio/visual display cable to the extension cable.
21. Re-connect battery and check operation of the reverse sensing system.
22. The audio/visual display can be set to NO AUDIO, LOW AUDIO, or HIGH AUDIO.
Installation manual for 2005-2010 Grand Cherokee
Reverse Sensing System installation manual - PDF format (11-pages, 842kb)
Reverse Sense kit for 2005-2010 Grand Cherokees
Grand Cherokee WK Reverse Sensing System parts Item
Part #
MSRP Mopar Reverse Sensing System kit
82208246AF
$341.00 Hole saw tool set
82208882
$21.75 Hole saw tool
N/A from Mopar
1. Open the liftgate and remove the upper liftgate trim panel.
Step 1: Prep surface following standard paint shop procedures for painting of plastic components.
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