One other thing.
Also, it looks like you may have some recalls on your vehicle. The dealer may fix these for free. Please contact the dealer service department, give them the VIN number of your car and have them check on these to see if they apply to you. Several seem pretty major. The fuel tank, ball joint, air bag. So for your safety you might just give them a call to make sure your vehicle is okay.
Campaign - Analog OnStar(R) Deactivation
Campaign - Fuel Tank Inlet Check Valve Fracturing
Campaign - Brake Booster Inspection/Replacement
Campaign - ABS Electronic Control Module Replacement
Recall - Fuel Tank Replacement
Recall 07V349000: Fuel Tank Replacement
Recall - Rear Suspension Ball Joint Separation (Canada)
Recall - Power Sliding Door Interior Handle Replacement
Recall 04V597000: Power Sliding Door Interior Handle
Recall - Driver Air Bag Inspection/Replacement
Recall 02V222000: Driver's Air Bag Replacement
Sunday, January 4th, 2009 AT 2:14 PM