A clean-looking used car can still have a complicated past. Learning how to spot CARFAX red flags—especially mileage inconsistencies, structural damage, auction announcements and salvage or rebuilt history—can help you avoid buying someone else’s expensive problem. You found the right vehicle. The price works. The kilometres look reasonable. It drives well, the interior is clean, and nothing immediately screams “problem.” Then you open the CARFAX Canada report.