Preventing frozen door locks

[Corollaman]

My door locks freeze up on my Silverado all the time during the winter. I've heard not to use wd40 because it attracts dust in the lock cylinder. What is a good recommendaton? Silicone or graphite spray? This is the only vehicle I've had this issue with.

 

[ecotourist]

When I lived in an area with cold winters I had a small container of lock de-icer spray.

If a lock needs lubrication (which doesn't happen very often) I use graphite. It often seems I don't get enough graphite in by "puffing" it in. So I puff some onto the key and insert it.

 

[spasm3]

https://www.amazon.com/Super-Lube-11016-Aerosols-Dri-Film/dp/B000RFRM4U/ref=sr_1_4?crid=2TZR8SCA7XHG4&keywords=super+lube+drifilm+lubricant&qid=1572203974&sprefix=super+lube+dry+f%2Caps%2C159&sr=8-4

 

[Dave9]

All my lock cylinders have cover plates (built-in the key hole, not those hinged wing plates like GM/etc used to have on trunks), and all my keys are relatively clean, so I've never had an issue with a wet lube attracting dust, but I don't drive off-road in the desert.

However, WD40 is not a lubricant. It is fine to soften up a mechanism with many years old hardened grease, or flush out wear particles to get it moving better, but then it benefits from a light oil lube. This protects better against corrosion and wear than a dry lube, but once you have it flushed out, you could use a dry lube instead.

 

[maxdustington]

You might want to pull the cylinder out and lube the contact points where it rotates. I've never had a frozen lock in the winter but I've had a car where those surfaces corrode and cause a lot of friction.

GM trucks man, my passenger door latch is stuck closed and my driver's side door is missing it's lock cylinder completely.

 

[KJSmith]

Originally Posted by Corollaman
My door locks freeze up on my Silverado all the time during the winter.....................What is a good recommendaton?


Move South where it doesn't freeze.

 

[Oro_O]

Lock-ease graphite.

Also check your window seals on the door top panel/window squeege; if this is so out-of-line in freezing, maybe they are leaking and letting water accumulate in there.

 

[Tundragod]

I use this from Lowes. Protexall Products 11-oz Metal Cleaning Lubricant Does not attract dust or dirt, Lifts rust, dirt, grime and grease, Works to -60°F, ...
I tried and dam, this thing is good.