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.
Can I drive with the Rear Window Defrost light on?
The Rear Window Defrost light is usually a status indicator, but confirm it against your owner manual if the symbol stays on unexpectedly or appears with another warning.
First step: Information only. If the warning appears with noise, smoke, overheating, poor braking, heavy steering, or reduced power, stop safely and get professional help.
Quick answers
What does the Rear Window Defrost dashboard light mean?
Rear-window heater or defrost function is active.
Can I drive with the Rear Window Defrost light on?
The Rear Window Defrost light is usually a status indicator, but confirm it against your owner manual if the symbol stays on unexpectedly or appears with another warning.
What should I check first when the Rear Window Defrost light appears?
Start with this step: Information only. Then confirm the exact symbol behaviour in the owner manual for your car brand, model and year.