Park Brake Chime
WARNING: This page does not describe the selected car, but rather 7 other vehicles, including the 2002 GMC Yukon XL, 2002 GMC Yukon, 2002 Chevrolet Tahoe, 2002 Chevrolet Suburban, and 2002 Chevrolet Avalanche. However, it is still accessible from the selected car via links, so may be relevant.
The BCM activates the park brake chime when the park brake is engaged and the signal circuit is low and vehicle is driven for at least 3 seconds at a speed above 4.8 km (3 mph). The chime will sound at the rate of 150 pulses per minute (fast rate chime). The park brake indicator will flash for any distance the vehicle is driven every half second until the park brake is no longer engaged.