Amber
The colour helps indicate urgency, but exact behaviour can vary by manufacturer.
Dashboard Warning Light
Fuel Filter
Diesel fuel filter is restricted or due for service. The usual first step is: Arrange fuel-filter service promptly.
Service required
Use this as a quick triage label before confirming in your owner manual.
Arrange fuel-filter service promptly
Check the matching manual page for your exact brand, model and year when possible.
What it usually means
Diesel fuel filter is restricted or due for service.
What to do next
Arrange fuel-filter service promptly. If the vehicle feels unsafe, stop in a safe place and arrange professional inspection.