2000 Ford Focus Owner's Manual - Page 128

Driving BRAKES Your service brakes are self adjusting. Refer to the Scheduled Maintenance Guide" for scheduled maintenance. Occasional brake noise is normal and often does not indicate a performance concern with the vehicle's brake system. In normal operation, automotive brake systems may emit occasional or intermittent squeal or groan noises when the brakes are applied. Such noises are usually heard during the first few brake applications in the morning; however, they may be heard at any time while braking and can be aggravated by environmental conditions such as cold, heat, moisture, road dust, salt or mud. If a metal to metal", continuous grinding" or continuous squeal" sound is present while braking, have the brakes inspected by a qualified service technician. 128