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Automotive glossary

Rear Cross Traffic Alert

Rear cross traffic alert warns the driver of vehicles approaching from the side when reversing out of a parking space.

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What is Rear Cross Traffic Alert?

It uses the rear corner radar sensors, often the same ones as blind spot monitoring. Warnings are shown with sounds and symbols on the screen or mirrors. Some systems brake automatically to avoid a collision.

How it works

The radar detects moving objects crossing behind the car and calculates if a collision is likely.

Why it matters for your car

Dirt, snow or stickers on the rear bumper can block the radar. After bumper repairs, sensors may need calibration.

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