It is common for car companies to replace the car key battery out of service during a minor or major service.
Make sure they can see that your key is protected against Relay Attack! You will receive a sticker with a QR code with your order as standard.
Stick it on the back of your sleeping Battery and avoid unnecessary battery replacement.
A mother has spoken about the "creepy" moment a thief was able to steal her keyless car.
Sarah Baxter, from Henley, was feeding her baby in the early hours when her Mercedes was stolen earlier this month.
Technicians selected 237 cars with keyless entry, and found 230 were susceptible to attacks where a potential thief could unlock and start the car without having the actual key. A further four could be either unlocked or started, while only three models were able to fully resist a keyless attack.