The best thing to do would be to stop at a auto glass place and let them look at it, they would have the sealant available to repair it on the spot. My guess is that is is a cemented on window and the t fills in the space between the window and body gap. They will probably place sealant in the gap and then press the t back into the groove. You should not use any silicone products on it as a temp fix. Good Luck. Hope this may help. Happy Trails Bert
2006 Monaco Dynasty Diamond IV 42' Tag, ISL 400,(new to us), Residential Refrig, 10KW Onan, Bosch Washer/220V Dryer (previously 2003 American Tradition 40W) 2010 Chev Malibu LT