Frequently Cannot Detect The Vehicle Ahead/Detection Zone Is Short: Description

WARNING: This page is about a different car, the 2011 Infiniti EX35. However, it is still accessible from the selected car via links, so may be relevant.

The detection function may become unstable in the following cases.

When the reflector of the vehicle ahead is deficient/not clean enough to reflect the radar.
When driving a road with extremely sharp corners.
When the sensor cannot detect the reflector of the vehicle ahead as the vehicle ahead is passing a hill or passing the peak.