I have keyless on my VW. It’s was a standard feature on my car but if it wasn’t, I’d never have specified as an extra cost option. I always temporarily deactivate keyless on my car - more from a security point of view than anything else - as would be perpetrators can’t then gain access to the car by using signal amplification relay equipment to fool the car into thinking they’d got the key (common method of stealing keyless cars).
On some newer VAG cars, you can temporarily disable keyless. The section outlining the procedure from the owners manual for my VW is below. As far as I’m aware, the procedure is the same for Seat on vehicles that have the functionality to temporarily disable this feature;
Temporarily deactivating Keyless Access
Keyless Access can be deactivated temporarily as described below so that the vehicle cannot be unlocked and started due to misuse by unauthorised third parties.
- Lock the vehicle with the ‘lock’ button on the vehicle key.
- Then touch the sensor on the outside of the door handle once within five seconds. Do not put your hand around the door handle when doing this.
- Keyless Access is now temporarily deactivated.
- You can check that it is deactivated by waiting for at least ten seconds and then pulling the door handle. It should not be possible to open the door.
When the vehicle is next unlocked, it can be unlocked only using the vehicle key. The keyless locking and starting system Keyless Access is reactivated the next time the vehicle is unlocked.
With my car, it’s not necessary to wait ten seconds to check keyless has been deactivated. You do need to go through this procedure each time the car’s locked. IMHO that’s no great hardship; I’m used to locking / unlocking previous cars I‘ve owned using the buttons on my key fob.