Section 103 (Tire Pressure Monitoring System (Diagnostics)): General Description: Inspection: Battery
WARNING: This page is about a different car, the 2012 Subaru Forester. However, it is still accessible from the selected car via links, so may be relevant.
Check that amount of battery fluid, gravity and voltage are within the specifications.
Standard voltage: 12 V or more
Specific gravity: 1.260 or more