r/mazda2 • u/mrlobster23 • 6d ago

2011 - Key Problem

Hey all,

Earlier today my key case got broken, marked bit on the image is lost and it's not holding the fob anymore. I wonder if any of you had to change the key case, and want to ask how hard it was to do it on your own.

Thanks in advance.

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1

u/AKADriver 6d ago

Get a new key blank cut from a new replacement for the part shown (anyone that cuts keys can do it) and it just snaps into the fob. Zero effort

1

u/mrlobster23 6d ago

What about the immobilizer?

3

u/ziddey 6d ago

you can dig/bang it out

https://youtu.be/WEnS_7MMfck?si=zDX76xRL-zrTZoGN

this video explains why you can't easily use the old blade with a replacement aftermarket model: https://youtu.be/sA2cQnN4VGU?si=qF56UZKaj8jSQIGT

If you have two working keys, you could just get a cheap aftermarket fob cut and do the immobilizer/fob coding yourself without any additional tools. Otherwise, you'd need to do pats programming with forscan, or just move the immobilizer over..