*GM requires eligibility for USAA P&C Insurance. If you do not have USAA insurance, you must call 1-800-531-8285 to obtain an authorization code as proof of eligibility. Offer ends 9/30/15. Not available with some other offers. See dealer for details. Excludes Chevrolet Camaro Z/28, Colorado Base, Corvette Z06, Cruze L, Equinox L, Impala Limited, Spark EV, Buick LaCrosse 1SV, GMC Canyon SL, Terrain SL and all Cadillac models.