The light illuminates with the parking brake applied while the ignition switch is in the “ON” position. It turns off when the parking brake is fully released.
Electronic parking brake system warningFree/Open Source Software Information
This product contains Free/Open Source Software (FOSS).
The license information and/or the source code of such FOSS can be found at the following URL.
http://www.globaldenso.com/en/opensource/ivi/subaru/