Amber/Red
The colour helps indicate urgency, but exact behaviour can vary by manufacturer.
Dashboard Warning Light
Reduced Power / Limp Mode
Power is limited to protect the vehicle because of low energy, temperature, or a fault. The usual first step is: Reduce demand; stop if red/unsafe; service if persistent.
Varies by state
Use this as a quick triage label before confirming in your owner manual.
Reduce demand; stop if red/unsafe; service if persistent
Check the matching manual page for your exact brand, model and year when possible.
What it usually means
Power is limited to protect the vehicle because of low energy, temperature, or a fault.
What to do next
Reduce demand; stop if red/unsafe; service if persistent. If the vehicle feels unsafe, stop in a safe place and arrange professional inspection.