See also:

Determining if the system is operational
The supplemental restraint system uses a warning indicator light in the instrument cluster or a backup tone to indicate the condition of the system. Refer to the Warning lights and chimes section ...

First generation (1998–2002)
The 1998 Navigator introduced the concept of the American luxury SUV, competing at first with only the Land Rover Range Rover. It was trimmed with leather, wood, and fine carpeting, but its humble ...

Trailer tow false alerts
When towing a trailer, the sensors may detect the trailer thus causing a false alert. It may be desirable to turn the BLIS off if the false alerts become annoying. ...