A series of roadside checks will be carried out around the Island over the next few weeks to make sure Manx cars are fit for the road.
The annual campaign has been extended this year so more elements of your vehicle will be assessed.
As well as lights, police and Infrastructure vehicle examiners will also be testing tyres and demisters.
The message to drivers is that they need a 'Clear screen, Clear grip and need to be Clearly seen'.
Infrastructure Minister David Cretney says vehicle safety is especially important at this time of year.