(If applicable)With Scan Tool
WARNING: This page is about a different car, the 2017 GMC Acadia. However, it is still accessible from the selected car via links, so may be relevant.
- Ignition » On / Vehicle » In Service Mode
- Select:Module Diagnostics
- Select:K20 Engine Control Module
- Select:Configuration/Reset Functions
- Select:Reset Functions
- Select:Engine Oil Life Reset
- Enter the desired value
- Select:Continue