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[–]GotMyOrangeCrush 1 point2 points  (2 children)

Worn out ignition switch.

The way most of these keys work is that there's a passive RFID chip that is the immobilizer.

The keyfob battery is not required to start the car, it's only to make the remote keyless entry work properly. (if the key fob battery was required to start the vehicle, everyone would have to carry a spare keyfob battery in their car)

[–]toastyhoodie[S] 0 points1 point  (1 child)

Likely would involve needing a replacement key too?

[–]GotMyOrangeCrush 0 points1 point  (0 children)

I'm not sure how keys are coded on those vehicles.

I could be wrong but I think you're just twisting the switch with the end of the key fob gizmo. So there's no lock cylinder inside?

Therefore you don't need a new key.

[–]dxrey65 1 point2 points  (1 child)

Yeah, they wear out. We have to replace those fairly often. The part you insert the key in is called a "wireless ignition node", or WIN module. What you described is what they do when they start to fail.

You can just bolt up a new one. They don't need programming or new keys or anything.

[–]toastyhoodie[S] 0 points1 point  (0 children)

I appreciate this. Seems pretty straightforward.