A WARNING has been fired out to motorists after a series of "keyless car" thefts.

Police say the crimes have happened in Garswood area and have reminded owners to be vigilant when securing vehicles.

Cars with keyless entry unlock automatically when the fob comes within a short distance of the car. This can be from inside a pocket or bag.

Police say that if you have to push a button on your car key to open your car, you don't have keyless entry.

In a statement, police in St Helens explained: "Keyless car theft or 'relay theft' is when a device is used to fool the car into thinking the key is close by.

"This unlocks the car and starts the ignition.

"Thieves only need to be within a few metres of your car key to capture the signal, even if it’s inside your home.

"This means that even if your car and home are secure, thieves can still unlock, start and steal your car."

How to protect your keyless entry car - police advice

When at home keep your car key (and the spare) well away from the car.

Put the keys in a screened or signal-blocking pouch, such as a Faraday Bag and check if the bag or pouch is still working every few months.

Reprogramme your keys if you buy a second hand car.

Turn off wireless signals on your fob when it's not being used.

Additional physical security such as locks and immobilisers are still highly recommended.