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 are normal.
Circumstances that may cause a false alert are; guardrails, freeway concrete walls, cyclone fencing, sharp turns around a pole or building, or coming to a stop with a vehicle directly behind but very close. False alerts are temporary and self-correct.
See also:
Underbody
Flush the complete underside of your vehicle frequently. Keep body and
door drain holes free from packed dirt. ...
Important child restraint precautions
WARNING: Always make sure your child is secured properly in
a device that is appropriate for their height, age and weight.
Child safety restraints must be purchased separately from the vehicle.
...
Replacing HID headlamp bulbs (if equipped)
The low beam headlamps on your vehicle use a “high intensity discharge”
source. These lamps operate at a high voltage. When the bulb is burned
out, the bulb and starter capsule assembly must be re ...
