Red/Amber
The colour helps indicate urgency, but exact behaviour can vary by manufacturer.
Dashboard Warning Light
Immobilizer / Security
Flashing while parked may be normal; staying on or a no-start can indicate an immobilizer fault. The usual first step is: Try the correct/spare key; service if vehicle will not start.
Varies by state
Use this as a quick triage label before confirming in your owner manual.
Try the correct/spare key; service if vehicle will not start
Check the matching manual page for your exact brand, model and year when possible.
What it usually means
Flashing while parked may be normal; staying on or a no-start can indicate an immobilizer fault.
What to do next
Try the correct/spare key; service if vehicle will not start. If the vehicle feels unsafe, stop in a safe place and arrange professional inspection.
Can I drive with the Immobilizer / Security light on?
Treat the Immobilizer / Security light as urgent if it is red, flashing, or the car feels unsafe. Stop in a safe place and check the owner manual before continuing.
First step: Try the correct/spare key; service if vehicle will not start. 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 Immobilizer / Security dashboard light mean?
Flashing while parked may be normal; staying on or a no-start can indicate an immobilizer fault.
Can I drive with the Immobilizer / Security light on?
Treat the Immobilizer / Security light as urgent if it is red, flashing, or the car feels unsafe. Stop in a safe place and check the owner manual before continuing.
What should I check first when the Immobilizer / Security light appears?
Start with this step: Try the correct/spare key; service if vehicle will not start. Then confirm the exact symbol behaviour in the owner manual for your car brand, model and year.