renault scenic?

Use the owner's key.

On the other hand, if you are having problems getting the car to respond properly to your key (unfortunately you didn't seem to think it was important to actually tell us what the real problem is), these may help:

http://www.rac.co.uk/forum/showthread.php?16411-Suspect-immobilizer-fault-on-my-Renault-Scenic

https://www.youtube.com/watch?v=DoPfLZPrPDg

http://www.justanswer.com/uk-car/2fspq-renault-megane-scenic-replaced-battery.html

http://www.remotekey.co.uk/renault/renault-immobiliser-faqs/

http://www.renaultforums.co.uk/showthread.php?t=15228

XXXXX
October 2015

you can`t

cdc
October 2015