Road safety experts say a recent spot check of child car seats in Leicestershire found problems in nearly half the vehicles they saw.
In October a check by the Leicestershire and Rutland Road Safety Partnership found seats were either not fitted correctly, or the wrong seats were being used.
Today experts offered advice to motorists at the Beaumont Leys Shopping Centre.
The number of vehicles not meeting the recommended standards fell to 38%.
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Cloudy and windy in the East. Cloudy and mild, with patchy rain in West.
Most places dry overnight. Cloudier and windier during Sunday.
Cloudy and mild on Sunday, risk patchy rain in west.