There are a few campaigns/special service warrantys for your car:
#16188: Special Coverage Adjustment - Brake Lamp Malfunction - (Mar 3, 2017)
#14327: Special Coverage Adjustment - Loss of Steering Due to Water Intrusion (Steering Gear Umbrella Seal Missing) - (Mar 5, 2015)
#10183A: Special Coverage Adjustment - Power Steering Assist - (May 23, 2012)
#08089C: Special Coverage Adjustment - Analog OnStar Deactivation - (Nov 18, 2008)
#07126: Special Coverage Adjustment - Loss of Power Steering Assist - (Dec 3, 2007)
#06190: Special Coverage Adjustment - Fuel Tank Cap - (Feb 21, 2007)
This one is safety and for the life of the car:
#12221A: Product Safety-Special Coverage - Loss of Power Steering Assist - (Aug 7, 2014)
If you need more specifics on one of these, I will post the full details.