See also:

BLIS False Alerts
Due to the nature of radar technology, there may be certain instances when the BLIS will alert with no object present in the blind zone. This is known as a false alert. Some level of false alerts ...

Windows and wiper blades
The windshield, rear and side windows and the wiper blades should be cleaned regularly. If the wipers do not wipe properly, substances on the vehicle’s glass or the wiper blades may be the cause. ...

Accessory delay
With accessory delay, the window switches, audio system and moon roof (if equipped) may be used for up to 10 minutes after the ignition is turned off or until either front door is opened. ...