The warning light on the dial comes on when a failure is detected.
See also:
Interior Fuses
The interior fuse panel is part of the Body Control Module (BCM) and is located
on the driver’s side under the instrument panel.
Fuse Panel
...
General warnings
Failure indications shown (only for some versions) on the reconfigurable multifunction
display together with buzzer sounding (adjustable) and warning light (if any) coming
on on the cluster, are a ...
13. Power Steering System Warning
This light is used to manage the electrical warning of the EPS (Power Steering
System).
Refer to “Power Steering” in “Starting and Operating” for further information. ...