Safe to drive?
Yes – if it’s always lit and there's no loss of power. You should get it checked as soon as possible.
No – if it's flashing while you're driving. Avoid heavy acceleration and high engine speed. Stop the vehicle when it's safe to do so. Restart the engine after 2 minutes to reset the engine management system. If the light's still flashing, turn off the engine and
report your breakdown.
Get a garage to check the engine soon to avoid damaging the catalytic converter or diesel particulate filter.
Cars have lots of sensors to check if everything's running smoothly. If there's a problem, the sensor will tell the engine control unit (ECU) which will turn on the engine management light. There are many reasons why the light will show but a garage can check what the cause is.