See also:

Center Seat
The vehicle may have a front center seat. This seat can be converted to a storage area by lowering the seatback. See Center Flex Storage Unit. ...

Add-on Electrical Equipment
The OnStar system is integrated into the electrical architecture of the vehicle. Do not add any electrical equipment. See Add-On Electrical Equipment. Added electrical equipment may interfer ...

Total Weight on Your Vehicle's Tires
Be sure the vehicle's tires are inflated to the upper limit for cold tires. These numbers can be found on the Information label. See Vehicle Load Limits. Make sure not to go over the GVW li ...