I believe on some- there was a screw. then you could turn it.
But yeah- on mine- it was tab. and twist.
came right out.
2010 FWD LT1-Gold Mist Metallic- seats 8
Build Date- July 31, 2009-2nd day of Spring Hill 2010 production.
2013 Equinox 3.6L 83,000
2010 Traverse 3.6L 148,000
2003 Trailblazer 4.2L 181,500