See also:

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. ...

Troubleshooting
...

Plastic (non-painted) exterior parts
Use only approved products to clean plastic parts. These products are available from your authorized dealer. • For routine cleaning, use Motorcraft Detail Wash (ZC-3-A). • If tar or grease spot ...