The message comes as Transport Minster Keith Brown launches the Ready for Winter campaign.
Mr Brown stressed that preparations for extreme weather events were good, but some motorists still did not plan enough for severe conditions. The new campaign also encourages people to look out for others, especially the more vulnerable.
It includes findings from a survey carried out jointly by the British Red Cross and the Scottish government.
It showed an increase in public preparedness for extreme weather, with most people concerned about power cuts and being cut off from their water supply.
However, it revealed many car owners thought they were doing enough just by having an ice scraper and de-icer.
In the past few years, parts of Scotland have been hit by high winds, blizzards and severe sub-zero temperatures...
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