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.
Next steps
Get a garage to check the engine soon to avoid damaging the catalytic converter or diesel particulate filter.
The problem
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.