Motorists have been warned not to leave their car running unattended while their windscreen is being defrosted.
It comes following reports that two cars were stolen on Friday morning after the drivers left their vehicles running unattended.
Gardaí said that anyone who defrosts their windscreen should remain in their car or use an ice scraper.
The Road Safety Authority has advised motorists to carry a screen scraper and de-icer to defrost their windscreens.
It also said they should not use hot water to defrost the windscreen as it can crack the glass.
The RSA also advised motorists to make sure that the windshield washer system is working and that it is full of an anti-icing fluid.