Even without power, the fob can still be detected using passive RFID technology. Press the brake (or clutch) and push the start button. The car should recognise the key and start as usual.

With push-button start systems, you can start your car effortlessly. As long as the key fob is inside the vehicle, a simple press of the button is all it takes.

Cars have 'secret button' that starts engine even if your key fob dies Around 60 per-cent of drivers with push-button start systems had no idea their car had a hidden emergency start feature.

If you've ever wondered what the circle arrow button on your key fob is for but were too embarrassed to ask your mechanic or dealership, here's the simple truth: it remotely starts your car.

If you're looking to pick up a new key fob, or repair one, you might wonder how long programming it takes and whether or not you can do it yourself.

A 2023 survey found that over 60 per cent of drivers with push-button start systems had no idea their car had a hidden emergency start feature.