Subaru Forester: Parking Distance Warning malfunction and precautions / Limitations of Parking Distance Warning

The Parking Distance Warning system in your Kia Telluride is engineered to deliver reliable assistance during low-speed maneuvering. However, like all advanced driver assistance features, its operational effectiveness depends on ambient environment and hardware conditions. The system may operate abnormally, produce delayed alerts, or behave unexpectedly under the following specific circumstances:

• Ice is on the sensor face or housing.

  The ultrasonic sensor surface is obscured by foreign material, such as packed snow, ice buildup, road grime, mud, or heavy water buildup. (The Kia Telluride Parking Distance Warning system will resume normal operation as soon as you thoroughly clean and clear these foreign substances from the bumper sensors.)

• The ambient weather conditions reach extremely hot or sub-zero cold temperature extremes.

• The ultrasonic sensor unit itself or its surrounding mounting assembly sustains physical damage.

• You apply excessive physical pressure directly onto the surface of the sensor or strike it with a hard object during cleaning or loading.

• You scratch, scuff, or scrape the exterior finish of the sensor using a sharp tool or abrasive object.

• You spray the bumper sensors or their immediately surrounding housing areas directly with a high-pressure power washer at close range.

• External sources emitting ultrasonic frequency waves—such as a nearby vehicle’s horn, a loud motorcycle engine, pneumatic construction tools, or large commercial vehicle air brakes—are operating close to your Kia Telluride.

• A high-power wireless device or transmitter with active signal broadcast functions is actively operating in close proximity to the ultrasonic sensors.

• Driving during periods of extremely strong winds or harsh air gusts that disturb ultrasonic wave propagation.

• Physical sensor structural damage, internal misalignment, or mounting displacement occurs as a result of vehicle collisions, such as low-speed rear or front bumper impacts.

The Kia Telluride Parking Distance Warning feature may experience temporary operational disruption or malfunction when:

• Heavy downpours, severe torrential rain, or excessive road spray are actively present while reversing or maneuvering.

• A continuous stream of water actively flows across the exterior surface of the bumper sensor.

• Ultrasonic signals are cross-interfered with or affected by another vehicle’s active parking sensors nearby.

  The primary detection zone of the bumper sensor is completely covered with heavy snow or frozen ice layers.

• You are navigating your Kia Telluride across an uneven off-road surface, unpaved gravel trail, bumpy terrain, or a path lined with dense overgrown vegetation and thick bushes.

• External high-frequency acoustic equipment or industrial machinery generating ultrasonic waves is located near the bumper sensors.

• The vehicle license plate is reinstalled in an offset or non-standard position different from the factory original placement.

• An oversized license plate, decorative frame, or bracket that does not comply with official vehicle specifications is installed over the bumper area.

• The original factory bumper height, suspension stance, or ultrasonic sensor installation points have been mechanically modified or altered.

• You have mounted aftermarket accessories, bumper guards, bull bars, or custom equipment directly adjacent to the ultrasonic sensors.

• A rear cargo carrier, hitch-mounted bike rack, or external box trailer is actively installed at the rear hitch receiver of the Kia Telluride.

• The vehicle’s overall ride height and pitch angle change significantly due to severely abnormal tire pressure, heavy vehicle overloading, or uneven cabin weight distribution.

• A tow package or trailer hitch ball mount is actively installed onto the rear chassis frame of the vehicle.

Drivers should exercise extra caution, as the following specific objects or obstacles may not be accurately detected by the system's sensors:

• Thin or slim objects with low reflective surfaces, such as hanging ropes, thin wire chains, small guide posts, or slender poles.

• Narrow structural elements with sharp angles, such as the pointed corners of a square concrete column or structural pillar.

• Soft materials and objects that naturally absorb ultrasonic sound waves rather than reflecting them back, including thick wool clothing, soft cushions, spongy materials, or loose powdery snow banks.

• Low-profile objects that stand shorter than 40 inches (100 cm) in height and are narrower than 6 inches (14 cm) in total diameter.

• Pedestrians, moving animals, or low-lying physical objects located extremely close to the vehicle’s bumper or outside the direct sensing cone of the ultrasonic sensors.

Objects located in the side blind zones between the front and rear side ultrasonic sensors, as well as obstacles actively approaching this lateral side space relative to the vehicle.

WARNING