Subaru Forester Manuals
Kia Telluride (LQ2, 2027-2026) Owner's Manual / Driver assistance guide / Reverse Parking Collision-avoidance Assist (PCA): (if equipped) / Reverse Parking Collision-avoidance Assist malfunction and limitations / Limitations of Reverse Parking Collision-Avoidance Assist

Subaru Forester: Reverse Parking Collision-avoidance Assist malfunction and limitations / Limitations of Reverse Parking Collision-Avoidance Assist

The Reverse Parking Collision-Avoidance Assist feature in your Kia Telluride is engineered to offer supplemental safety support, but certain specific conditions can prevent it from triggering warnings or initiating emergency braking. System performance may be limited, delayed, or entirely suspended under the following circumstances, even if pedestrians, vehicles, or physical objects are detected directly behind your vehicle:

  • Vehicle-related issues, mechanical modifications, or physical damage:

    • Installing any non-factory equipment, aftermarket accessories, or structural modifications that interfere with sensor sightlines.

    • Modifying core braking system components, such as installing non-standard brake discs, performance pads, or custom calipers.

    • Operating with misaligned wheels, altered suspension geometry, lift kits, or aftermarket lowering springs.

    • Attaching non-genuine accessories to the steering wheel rim or modifying internal steering control components.

    • Driving when the vehicle structure or frame is physically unstable, misaligned, or distorted following a collision or accident.

    • Modifying factory bumper clearance, ground height, or altering the mounting position and alignment of ultrasonic sensors.

    • Severe vehicle body tilt or uneven ride height caused by incorrect tire pressure, flat tires, or heavy cargo loading in the rear trunk area.

    • Physical damage, cracks, or structural misalignment affecting the rear wide-view camera assembly or bumper ultrasonic sensors.

    • Accumulation of foreign material, such as road grime, mud, ice, snow, or heavy rain droplets, covering the camera lens or ultrasonic sensors.

    • Equipping the vehicle with snow chains, a temporary spare tire, or replacement wheels and tires of a non-standard size.

    • Installing an aftermarket trailer hitch or non-genuine towing assembly on the rear chassis of your Kia Telluride.

    • Mounting the license plate in a location other than the designated factory position on the rear bumper or liftgate.

    • Attaching non-standard license plate frames, oversized novelty plates, or thick decorative brackets that extend into sensor zones.

    • Applying stickers, vinyl wraps, paint, or decorative trim pieces directly over or around the ultrasonic sensor cutouts.

    • Removing, disassembling, or tampering with the ultrasonic sensors, wiring harnesses, or adjacent rear bumper trim parts.

    • Applying excessive physical pressure, striking the sensor heads with hard tools, or subjecting the bumper to wash wand impacts.

    • Scratches, gouges, or surface abrasions on the ultrasonic sensor faces caused by contact with sharp tools or abrasive debris.

  • Environmental factors, weather conditions, and surrounding traffic obstacles:

    • Distinct road surface patterns, high-contrast pavement painted lines, or reflective ground markings that disrupt camera vision.

    • Harsh ground shadows, stark brightness contrast, or direct sunlight reflections on wet road surfaces.

    • Pedestrians, cyclists, or static obstacles standing dangerously close to the outer edge of your vehicle’s turning path.

    • Navigating through narrow alleyways, tight indoor parking garages, or restricted driveways bounded by close walls or posts.

    • Driving across uneven terrain, unpaved gravel driveways, steep speed bumps, drainage dips, or sharply inclined ramps.

    • Mounting a bike rack, cargo box, or hitch carrier near the rear corner radar units and bumper detection zones.

    • Rear wide-view camera blind spots caused by intense headlight glare, direct solar exposure, or inclement weather like torrential rain, dense fog, and snowfall.

    • Operating your Kia Telluride in extreme lighting environments, such as pitch-black parking lots or blinding direct sunshine.

    • Extreme ambient outside temperatures that fall severely above or below normal operating ranges.

    • Exposure to strong crosswinds exceeding 12 mph (20 km/h) or direct wind gusts blowing perpendicular to the rear bumper face.

    • High ambient acoustic noise nearby, such as blaring vehicle horns, loud motorcycle exhausts, or commercial truck air brake blasts.

    • External equipment in close proximity generating ultrasonic frequencies, including pneumatic tools, industrial sensors, or ultrasonic car wash equipment.

    • Complex environmental obstacles, low-profile curbs, or narrow vertical posts that fall outside the standard detection cone of the rear sensors.

A wireless communication device or two-way radio operating with active transmission functions in close proximity to the rear ultrasonic sensors.

  • Your vehicle’s ultrasonic sensors experience interference from another nearby vehicle’s active parking distance warning system.

  • The road surface directly beneath the tires is exceptionally slippery, covered in ice, or steeply inclined.

  • High-pressure water streams are sprayed directly onto the sensitive surface of the rear ultrasonic sensors during washing.

  • Specific environmental conditions involving pedestrians or physical objects:

    • The pedestrian’s posture or location makes them inherently difficult for the camera system to detect.

    • There is a significant ground height difference, curb drop-off, or elevation change between your vehicle and the pedestrian.

    • The visual image of the pedestrian captured by the wide-rear view camera is indistinguishable from the background scene due to lighting or contrast.

    • The pedestrian is positioned near the outer rear edge or lateral blind spot of the vehicle body.

    • The pedestrian is bent over, sitting, prone, or otherwise not standing fully upright.

    • The pedestrian’s physical stature is either too short (such as small children) or exceptionally tall to be recognized by standard detection algorithms.

    • The pedestrian is wearing clothing with patterns or colors that easily blend into the surrounding background environment, making visual distinction difficult.

    • The pedestrian is wearing soft or specialized clothing materials that absorb rather than reflect ultrasonic sound waves.

    • The physical object’s overall size, structural thickness, height, or geometry fails to reflect ultrasonic waves properly back to the sensors (for example, thin posts, bushes, low curbs, shopping carts, or the tapered edge of a wall).

    • The pedestrian or object is moving rapidly across the path rather than remaining stationary behind the reversing vehicle.

    • The pedestrian or object is located extremely close to the rear bumper of your vehicle, falling inside the minimum sensor range.

    • There is a large, sound-reflecting structure (such as a solid concrete wall) positioned directly behind the pedestrian or object, creating signal clutter.

    • The obstacle is not located directly near the front or rear center baseline of your vehicle.

    • The obstacle is angled diagonally and is not oriented parallel with the surface of the rear bumper.

    • The flat outer face of the target object is not oriented parallel to the rear bumper, causing ultrasonic signals to bounce away.

  • Specific dynamic driving conditions and sudden maneuvers:

    • You begin reversing or accelerating immediately after shifting the gear selector to R (Reverse) or D (Drive) before system initialization completes.

    • You accelerate rapidly or execute tight turning maneuvers in a circle while reversing.

    • You drive the vehicle immediately after starting the engine or powering on the vehicle control systems.

    • WARNING

    • Always exercise extreme caution and undivided attention while maneuvering your Kia Telluride. The driver retains full legal and practical responsibility for operating the brake pedal and maintaining safe vehicle control at all times.

    • Always physically check the entire perimeter around your Kia Telluride to ensure there are no pedestrians, pets, or obstacles in your path before initiating any vehicle movement.

    • Operational performance of the Reverse Parking Collision-Avoidance Assist system can vary significantly based on environmental conditions. When reversing at speeds above 2 mph (4 km/h), the system’s automated emergency braking functions exclusively when pedestrians are detected. Always maintain complete visual awareness while driving.

    • Certain low-profile, sound-absorbing, or unusually shaped objects may not be detected by the rear ultrasonic sensors depending on distance, material density, or height, which inherently limits sensor effectiveness.

    • The Reverse Parking Collision-Avoidance Assist system in your Kia Telluride may fail to respond or may occasionally trigger unintended warnings depending on complex road surfaces and immediate surroundings.

    • Never rely solely or exclusively on the Reverse Parking Collision-Avoidance Assist system in your Kia Telluride. Depending entirely on automated features without maintaining active driver awareness can result in severe collisions, vehicle damage, or serious personal injury.

    • Always keep the Wide Rear View camera lens and the surrounding bumper-mounted ultrasonic sensors thoroughly clean and completely free from road debris, mud, snow, or ice buildup.

    • Avoid using harsh chemical cleaning agents or products containing aggressive acidic or alkaline detergents when cleaning the camera lens surface. Clean the lens gently using only a mild liquid soap or neutral detergent solution, followed by a thorough rinse with clean water.

    • Do not direct high-pressure water streams or power washer nozzles straight at the Wide Rear View camera assembly, rear ultrasonic sensors, or their immediate mounting seals. Excessive water pressure can compromise internal seals, leading to electrical shorts or system malfunctions.

    • Refrain from mounting aftermarket items—such as bumper stickers, protective bumper guards, or decorative wraps—near the camera housing or sensor cutouts, and avoid applying non-factory paint finishes to the rear bumper. Such additions can block detection cones and severely disrupt Parking Collision-Avoidance Assist functionality.

    • Never attempt to disassemble, modify, or physically force open the Wide Rear View camera housing, sensor units, or associated electrical wiring harnesses.

    • Avoid applying excessive physical force or direct mechanical impact to the Wide Rear View camera unit or ultrasonic sensors. If the camera or sensors are pushed out of precise factory alignment, the safety features on your Kia Telluride may cease to operate correctly; in such cases, consult an authorized Kia dealership for recalibration.

    • You may hear noticeable mechanical noise or hydraulic pressure sounds from the braking assembly when the system initiates automated hard braking to prevent an impending rear collision.

    • If another high-priority auditory warning—such as the unbuckled seatbelt reminder chime—is actively sounding in the cabin, the Parking Collision-Avoidance Assist alert chime may be muted or suppressed.

    • The Reverse Parking Collision-Avoidance Assist system may fail to detect obstacles or function correctly if the rear bumper of your Kia Telluride has suffered physical impact, structural distortion, or improper collision repair.

    • System operational precision may be temporarily degraded when driving through areas characterized by intense ambient electromagnetic interference or high-frequency radiation.

    • Operating the infotainment audio system at excessive volume levels can drown out acoustic warning chimes, preventing occupants from hearing incoming safety alerts.

    • Automated brake intervention performance directly depends on the overall health and readiness of the braking infrastructure. The system will restrict its response to visual and audible alerts without applying emergency braking when:

      • The primary brake system warning indicator light is illuminated on the instrument display panel.

      • The vehicle’s active braking hardware is already engaged by another vehicle control subsystem.

    • Routine inspection of brake pad thickness, rotor condition, and hydraulic brake fluid levels is essential, as worn components can significantly degrade emergency braking response distance.

    • Deactivate the Parking Collision-Avoidance Assist feature via the vehicle settings menu whenever towing a trailer or hitch-mounted carrier. If left active while reversing with a attached trailer, the system will recognize the trailer structure as an immediate hazard and continuously lock the brakes.

    • Reversing or driving with the rear liftgate open alters camera coverage and sensor detection angles, representing an abnormal operating condition that requires extra driver vigilance.

    TIP

    The Reverse Parking Collision-Avoidance Assist system in your Kia Telluride achieves optimal detection accuracy under standard operating scenarios, such as when:

    • An adult pedestrian is standing upright directly behind the vehicle within the primary path of travel.

    • A substantial physical obstacle, such as a stationary passenger car or SUV, is parked directly behind the rear center of your Kia Telluride.

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