Jesske said:Depends of the radio. Not every radio locks up if you tried a wrong number several times.
But it takes longer before you can enter the code again. So first time you can enter it, second time you have to wait 20 seconds, third time 40 seconds and so on. When I lost my number, I just called my dealer and that number was saved in his computer under my personal data. Sometimes the number is also on your invoice of the car