Outside driver door lock

[Sidewinder]

I have recently purchased a 2010 SRT Final Edition Roadster. I have the original keys but the outside driver door lock seems to be seized and won’t turn. Any thoughts on this? I’ve tried a shot or 2 of WD40 but no change. Is this common?

[Fatman2006]

It's my understanding it is a common issue. Mine was stiff, but I was able to turn the lock so I never looked any further for solutions to fix it. However, a few guys give suggestions for turning the lock in this thread.

https://driveviper.com/forums/thread...ight=lock+door

[13COBRA]

In that thread Fatman2006 posted, it explains you need to apply pressure to the door (shutting it) and it'll turn a lot of the time.

[Steve-Indy]

For those who don't take the time to follow the link above:

Get rid of the WD 40 (it will attract moisture). And, YES...it is alarming to twist the key that hard. If you decide the lock is really frozen, try a tiny amount of a branded penetrating oil (Kroil, PB Blaster, Schaffer's Penetro 90). Keep in mind that this keyhole has two functions...one electrical, one mechanical. I regularly lube these keyholes with a THIN film of white lithium grease placed on the key which then I use to cycle the lock.

[Sidewinder]

My question is...are there any significant upgrades on the gen 4’s between 2008 and 2010