DTC B1510 indicates a failed or open AIR BAG indicator.

DTC B1510 sets when the instrument cluster detects a circuit problem with the AIR BAG indicator during a diagnostic system self-test.

When DTC B1510 sets, the instrument cluster illuminates the SERVICE VEHICLE SOON indicator.

Replace the instrument cluster. Perform the following actions:

1. Refer to the most recent service information in order to obtain the approximate vehicle mileage.
2. Contact an authorized Delco® service center.
3. Return the instrument cluster to the service center in order to obtain the approximate odometer data for the replacement instrument cluster.