After lock cylinder replacement, do I need to program new keys or just replace the microchip from the old keys to new keys?

Tiny
ANNIELU
  • MEMBER
  • 2005 LEXUS GX 470
  • 16,000 MILES
My car key will not turn inside the key slot. When I insert the key, the immobilizer recognizes the key, but the ignition lock cylinder has some glitches to it that makes my key not turntable. So, I am planning to replace the ignition lock cylinder. The new ignition lock cylinder comes with two keys. If after replacing the cylinder, I can mechanically turn with the new keys, but I won’t be able to start the car because the immobilizer doesn’t recognize the new key. In that case, do I need to program my new key to match with the immobilizer? Or I can avoid this hassle by just carrying my old key around because it has the microchip that communicates with the immobilizer.
Monday, July 3rd, 2023 AT 5:18 PM

1 Reply

Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 48,363 POSTS
I would try some wd40 in the keyhole first. Also, if the key is recognized by the immobilizer, then just have the key with you. This guide may help you and I have included the ignition lock replacement instructions as well.

https://www.2carpros.com/articles/ignition-switch-wont-turn-stuck

Check out the images (below). Please let us know how it goes

Was this
answer
helpful?
Yes
No
Tuesday, July 4th, 2023 AT 12:09 PM

Please login or register to post a reply.

Sponsored links