br Video tour of a 2008 Buick LaCrosse CX Sedan by Robert Crotty from Crotty Chevrolet Buick. This One Owner, GM Certified Automobile will come with a 12-Month 12,000 Mile GM Factory Backed Bumper to Bumper Warranty.br br Our GM Certified Pre-Owned Vehicles include something you never thought possible: new car confidence with a used car price tag! br br The name "GM Certified" has always meant passing our strict standards, but now with our new Owner Care vehicle benefits package it raises it to new heights.