Diagnostic Aids
WARNING: This page is about a different car, the 2019 GMC Savana 3500, 2019 GMC Savana 2500, 2019 Chevrolet Express 3500, and 2019 Chevrolet Express 2500. However, it is still accessible from the selected car via links, so may be relevant.
- This DTC may be stored as a history DTC without affecting the operation of the control module.
- Do not replace a control module based only on DTC B101D being set in history with the exception of the following control modules:
- Sensing and Diagnostic Module (SDM)
- Passenger Presence System Module
- If DTC B101D is set as current, replace the appropriate control module.