Amber/Red
The colour helps indicate urgency, but exact behaviour can vary by manufacturer.
Dashboard Warning Light
Rear Cross Traffic Alert
May warn of crossing traffic or indicate the system is unavailable or faulty. The usual first step is: Stop/check surroundings for an alert; inspect if a fault persists.
Varies by state
Use this as a quick triage label before confirming in your owner manual.
Stop/check surroundings for an alert; inspect if a fault persists
Check the matching manual page for your exact brand, model and year when possible.
What it usually means
May warn of crossing traffic or indicate the system is unavailable or faulty.
What to do next
Stop/check surroundings for an alert; inspect if a fault persists. If the vehicle feels unsafe, stop in a safe place and arrange professional inspection.