Keyless Start (Push-button Start)

The car detects the key by radio. The brake or clutch must be pressed. A backup position exists for flat key batteries. The backup position is often marked on the steering column or in the centre console and reads the key with a short-range coil. Turning the engine off usually requires the car to be stationary, and pressing the button for several seconds may be an emergency stop function.

Antennas locate the key inside the car.

A flat key battery may require the backup position. Relay attacks are a theft risk.