Have same thing with my '06 Montana SV-6. Here's what has happened so far...

They changed the rack and pinion assembly. Problem completely went away.
Came back a few months later.

They then changed the boots on the rack assembly with a new type as per a GM
bulletin.
Did nothing to solve the problem.

I will be going back to have another rack and pinion assembly installed.
When I get a minute.
The assembly they installed was a reman.

"Bob D" <rdennison@att.net> wrote in message
news:aPv9k.8310$89.4593@nlpi069.nbdc.sbc.com...
> 2007 Grand Prix.
>
> There is a squeaking noise that comes from the steering wheel when you
> turn it left or right making a turn. It is not loud but after a while it
> gets annoying.
>
> It sounds like it is between the wheel itself and the column. I suspect it
> is the brushes? for the horn and air bag contacts rubbing in the wheel?
>
> Is there a spray that is used by the Dealer to lubricate these or is it a
> Dealer tear-off of the wheel and lubricate that way? I'm sure there is a
> danger in doing anything around the air bag.
>
> Any help or advice will be appreciated.
>
> Bob D...
>
>
>
>