See also:

SOS Post-Crash Alert System™
The system automatically flashes the turn signal lamps and sounds the horn three times at four second intervals in the event of a serious impact that deploys an airbag (front, side, side curtain [ ...

Brakes
Occasional brake noise is normal. If a metal-to-metal, continuous grinding or continuous squeal sound is present, the brake linings may be worn-out and should be inspected by an authorized dealer. ...

Trailer brakes
Be sure your trailer conforms to all applicable local and Federal regulations regarding trailer braking. If your trailer is equipped with electronically-controlled brakes you will need to have an ...