Took delivery of my S550 today, and must admit, I'm a bit dumbfounded by keyless go. I have my key set to only open one door initially, but as soon as somebody else touches another door handle, all doors subsequently unlock. What if that second person isn't somebody I want in the car? There's no way to keep those doors locked, is there? Anybody else have similar concerns???

 

Only the door near the key should open.

 

You should be able to switch the key fob to "security" setting like the other smart keys. Hold both the lock and unlock buttons together on the key for about 10-20 seconds or until the little light starts flashing and then it should switch from "global" to "security". I'm not sure if this will work or not but give it a shot!

 

wow, didn't know it could do that.....i'll try it out

but wait, if i want it back to "global" i can just do the same thing, right?

 

Yep, its the same procedure to switch it back and I'm 98% sure it will work, keep us posted!

 

I have my key set to "security"...I will have to have somebody try and open a door from the other side of the car. Will report back...

 

Indeed, setting the key to "security" does in fact solve the problem. The doors cannot be opened from the opposite side of the car. Good to know...