Seat Belt System Circuit Description

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 seat belt indicator will illuminate when the following conditions occur simultaneously:

The ignition switch is in one of the following positions:
- RUN
- BULB TEST
- START
The LF seat belt is not fastened.

The audio alarm, located within the body control module (BCM), also incorporates an indicator within the instrument panel cluster (IPC). The seat belt indicator works in conjunction with the audio alarm. When the BCM receives a signal that the LF seat belt is unfastened, the BCM sends a signal to the IPC to command ON the seat belt indicator.