OnStar Antenna

[jmess]

Was washing my truck over the weekend and noticed that the gasket at the base of the OnStar antenna had a gap at the rear and would bubble as I was rinsing. Seems like this gasket should not have any gaps, or is this engineered this way as a vent?

 

Thanks

[DRS 95 Silverado]

I wouldn't think so. Might want to show it to dealer. You don't want to have water leak in and stain your headliner or something.

[TxTruckMan]

I think others have reported leaks at the antenna into the cab.

 

Get the dealer to fix it.