Amber/White
The colour helps indicate urgency, but exact behaviour can vary by manufacturer.
Dashboard Warning Light
Rear Window Defrost
Rear-window heater or defrost function is active. The usual first step is: Information only.
Information only
Use this as a quick triage label before confirming in your owner manual.
Information only
Check the matching manual page for your exact brand, model and year when possible.
What it usually means
Rear-window heater or defrost function is active.
What to do next
Information only. If the vehicle feels unsafe, stop in a safe place and arrange professional inspection.