auto diagnostics software manual

The best way to Reset the GM Antilock Warning Light 1Place the vehicle's transmission into initial gear (manual) or park (automatic). Apply the parking brake and shut down the engine.

2Turn the ignition to the "ON" Auto diagnostic tool; position but don't start out the engine. Connect an automotive scan tool to the vehicle's diagnostic data port (underneath the dashboard on the driver's side). Energy on the scan tool and allow it to start up.3Navigate to the major menu screen on the scan tool.

Choose "ABS," then decide on "Codes auto diagnostics software."4Select the alternative to "Clear all present and stored DTCs." DTC stands for "Diagnostic Difficulty Code." Wait for the scan tool to clear the codes from the ABS laptop or computer.5Disconnect the scan tool and start the engine. Confirm that the antilock warning light is no longer on.