Limitations of Rear Cross-Traffic Collision-Avoidance Assist

Rear Cross-Traffic Collision-Avoidance Assist may not operate properly, or it may operate unexpectedly under the following circumstances:

  • Departing from where trees or grass are overgrown

  • Departing from where roads are wet

  • Speed of the approaching vehicle is fast or slow

Braking control may not work, driver's attention is required in the following circumstances:

  • The vehicle severely vibrates while driving over a bumpy road, uneven road or concrete patch

  • Driving on a slippery surface due to snow, water puddle, ice, etc.

  • The tire pressure is low or a tire is damaged

  • The brake is tuned

  • Remote Smart Parking Assist is operating (if equipped)

NOTE

For more details on the limitations of the rear corner radar, refer to Blind-Spot Collision-Avoidance Assist (BCA) .

WARNING

Limitations

Details
Figure 1. Driving near a vehicle or structure
2026 Kia Tasman Rear Cross-Traffic Collision-Avoidance Assist limitation image. A backing truck is shown with a red arrow. A yellow structure labeled (1) blocks the blue-highlighted radar range, preventing detection of a vehicle approaching from the left. Explains how structures limit the system's ability to detect cross-traffic.
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(1) Structure

Rear Cross-Traffic Collision-Avoidance Assist may be limited when driving near a vehicle or structure, and may not detect the vehicle approaching from the left or right. If this occurs, the function may not warn the driver or control the brakes when necessary.

Always check your surroundings while backing up.
Figure 2. When the vehicle is in a complex parking environment
2026 Kia Tasman Rear Cross-Traffic Collision-Avoidance Assist limitation image. A top-down view shows a vehicle backing out with the rear area highlighted in teal. Red arrows indicate nearby vehicles parking or pulling out. Explains how the system may unnecessarily warn or brake in complex parking environments.
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Rear Cross-Traffic Collision-Avoidance Assist may detect vehicles which are parking or pulling out near your vehicle (example, a vehicle leaving beside your vehicle, a vehicle parking or pulling out in the rear area, a vehicle approaching your vehicle making a turn, etc.).

If this occurs, the function may unnecessarily warn the driver and control the brake.

Always check your surroundings while backing up.
Figure 3. When the vehicle is parked diagonally
2026 Kia Tasman Rear Cross-Traffic Collision-Avoidance Assist limitation image. A vehicle backs out of a parking spot as indicated by a red arrow, while a yellow structure (1) and adjacent vehicles obstruct the blue radar detection zones. Red arrows indicate vehicles approaching from the left and right. This explains the limitation where obstacles prevent the system from detecting cross-traffic.
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(A) Vehicle

Rear Cross-Traffic Collision-Avoidance Assist may be limited when backing up diagonally, and may not detect the vehicle approaching from the left or right. If this occurs, the function may not warn the driver or control the brakes when necessary.

Always check your surroundings while backing up.
Figure 4. When the vehicle is on or near a slope
2026 Kia Tasman Rear Cross-Traffic Collision-Avoidance Assist limitation image. A white truck reverses into a parking spot, indicated by a red arrow. Blue radar waves emit from the rear near a grey SUV. This describes a limitation when backing into a parking space.
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Rear Cross-Traffic Collision-Avoidance Assist may be limited when the vehicle is on an uphill or downhill slope, or near it, and may not detect the vehicle approaching from the left or right. If this occurs, the function may not warn the driver or control the brakes when necessary.

Always check your surroundings while backing up.
Figure 5. Pulling into the parking space where there is a structure
2026 Kia Tasman Rear Cross-Traffic Collision-Avoidance Assist limitation image. A white truck backs out with teal shading showing the sensor range. An orange zone (1) represents an obstacle blocking the view, and zone (2) shows the road where a car passes, marked by a red arrow. Explains detection limitations due to obstacles.
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(1) Structure

(2) Wall

Rear Cross-Traffic Collision-Avoidance Assist may detect vehicles passing by in front of you when parking in reverse into a parking space with a wall or structure in the rear or side area. If this occurs, the function may unnecessarily warn the driver and control the brake.

Always check your surroundings while backing up.
Figure 6. When the vehicle is parked rearward
2026 Kia Tasman Rear Cross-Traffic Collision-Avoidance Assist limitation image. A top-down view shows a white truck backing out and a grey car approaching from the right, indicated by red arrows. The rear lane is highlighted in teal. Explains a scenario where a vehicle approaches from the side while reversing.
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Rear Cross-Traffic Collision-Avoidance Assist may detect vehicles passing by behind you when parking in reverse into a parking space. If this occurs, the function may unnecessarily warn the driver and control the brake.

Always check your surroundings while backing up.
WARNING

  • When you are towing a trailer or another vehicle, turn off Rear Cross-Traffic Collision-Avoidance Assist for safety reasons.

  • Rear Cross-Traffic Collision-Avoidance Assist may not operate properly if interfered by strong electromagnetic waves.

  • Rear Cross-Traffic Collision-Avoidance Assist may not operate for 3 seconds after the vehicle is started, or the rear corner radars are initialized.

  • Even if restarting the vehicle with the sensors blocked or malfunctioned, Rear Cross-Traffic Collision-Avoidance Assist may not properly operate as the function maintains the last setting.