Ford 2002 Taurus Owner's Manual page 15

Instrument Cluster
BeltMinder chime
Sounds intermittently to remind you to fasten your safety belts.
Supplemental restraint system (SRS) warning chime
Sounds when a malfunction in the supplemental restraint system (front
or side airbags) has been detected. Have the supplemental restraint
system inspected immediately.
Headlamps on warning chime
Sounds when the headlamps or parking lamps are on, the key is removed
from the ignition and the driver's door is opened.
Key-in-ignition warning chime
Sounds when the key is left in the ignition and the driver's door is
opened.
Park brake warning chime
Sounds when the parking brake is set, the engine is running and the
transaxle is not in P (Park) or N (Neutral). The chime will shut off when
the parking brake is disengaged.
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