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).

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.

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 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.

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 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.

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 the "SERVICE PARK ASSIST SYSTEM" message.

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.

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 obstacle 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 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.