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All warning lights

AdBlue

Drive carefully

What it means

The AdBlue (urea) level is low or the exhaust treatment system has a fault. The engine may refuse to restart once the tank is empty.

What to do

Refill AdBlue as soon as possible, ideally before the next start. Do not ignore the countdown; the car may not start after a stop.

This is general guidance. Symbols differ between manufacturers, so check your owner's manual, and have a red warning light looked at before you drive on.

Not sure which light it is?

Photograph your dashboard in the Car Service Book app and get an explanation for your car.

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