Where exactly does the red line in reverse indicate a collision?

2 Answers
VanWillow
08/31/25 4:12am
In the reversing camera system, touching the red line indicates a collision. The optimal distance is to stop when reaching the middle of the yellow line. Drivers can use rearview mirrors to assist during reversing. Car Rearview Mirrors: Car rearview mirrors are located on both left and right sides of the vehicle's front and inside the cabin. They reflect conditions behind, beside, and below the vehicle, serving as "second eyes" that allow drivers to indirectly observe these areas, thereby expanding their field of vision. Car Reversing Camera: The car reversing camera is a vehicle system. This newly developed reversing visual system provides intuitive and clear imaging, offering great convenience to drivers.
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McLucy
09/12/25 7:33am
When it comes to interpreting those reverse parking sensor red lines, experience really is key. Every car's reverse radar system differs—those red lines typically indicate obstacles within 20-30cm, but they're not precise impact markers—just warning signals that you're getting dangerously close. The actual collision point depends on factors like vehicle speed, obstacle hardness, and even ride height differences. Take SUVs for example—their higher rear bumpers may still have a few centimeters of clearance even when the red lines are fully lit. I've tested several vehicles in safe parking lots by slowly reversing: first observing how the radar's red lines progressively fill up, then gently touching obstacles like walls or cones to note the red line positions. Most times, if you continue reversing after the lines max out or the alarm sounds, minor scrapes become likely. Never rely solely on sensors—they may malfunction due to false readings or snow buildup. Always cross-check with side mirrors. Make it a habit to reverse slowly (under 3km/h) and prioritize safety. Regularly inspect and clean your sensors to maintain proper functionality.
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