Diagnostic Aids
- DTC B302A is only an indicator that a start disable request has been received from the vehicle telematics system and does not indicate a fault in the immobilizer or telematics system.
- To remove the start disable request, the vehicle account must be updated with the OnStar® stolen vehicle team. This will require that a law enforcement agency or the customer contact OnStar® to indicate that the vehicle has been successfully and safely recovered.
- If the OnStar® system has been disabled or damage during a theft attempt, the system will not be able to communicate and the start disable request will not be removed. OnStar® must be functioning properly for the start disable request to be removed.