Naas Traffic Corps has urged all motorists to check their lights regularly to ensure they are working properly.
Officers stopped a car (above) stop car at the weekend with one front light and the driver was given a warning.
Checkpoints as part of Operation Solas are regularly checking lights on vehicles on Co Kildare roads.
Dozens of motorists have already been given warnings or hit with on-the-spot minimum fines of €60 for broken bulbs.
The Road Safety Authority estimates that 550,000 cars, or 20% of all cars on Irish roads, fail the NCT every year for defective lighting.
A Garda spokesman said: "It’s vital that all of us that use the roads do so in a safe and responsible manner. This means lighting up and making sure we are visible to all other road users.
"If you’re driving or cycling – check your lights regularly."
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