Truck lock cylinder

[wehan]

My trunk lock cylinder seized up and is not salvageable so I need a new one. Where can I get it or what part # is it? I keep running into dead-ends and wrong parts with Google.

 

[YelloEye]

You should try OEM GM Parts Online | Wholesale GM Parts Online That's usually where I get my part numbers from. Good diagrams. Otherwise you can try GM Parts Direct: Your direct source for Genuine GM Parts

Looks like it's probably GMPN 25974441 though. This does come unkeyed, not sure how to go about that side of things.

 

[The Other Andy]

Is this a common issue? Mine seems to be done, and my ex-gf's SS wouldn't open either.

 

[wehan]

Not sure, I pulled mine out (large clip that slide off on the back inside the trunk) and soaked it in PB Blaster for a few days and got it to free up but now it just acts like I have the wrong key, might be worth a try in your case.

I just put it back in as I'm not paying upwards of $70 for a new one.

 

[YelloEye]

Make sure after freeing up the cylinder that you re-grease it with white lithium grease, otherwise it'll seize again eventually.