[cadi-vince]

hi. i have a 2009 cts. has anybody had troubles with a passenger sde window . going down on its own. specially when you go threw a car wash.. lol or sometimes when you shut the car down

 

[Loveldos]

Check for a clogged sunroof drain--the moisture can cause electrical issues including windows that open spontaneously. It happened to my sister's 2009 CTS-4 Sedan, but but the window was the rear on the driver's side. The drains are internal and go down the pillars of the roof. Hope this helps.