On saturday, 9/8, i noticed the parking brake lever had lost tension when i first started the car, and after running errands and parking afterward, noticed a strong, "ozone-y" odor coming from the car, but wasn't sure from where. i drove more a little more over the weekend and noticed the smell again, plus according to the car's mpg readout on the trip computer, the fuel mileage was much lower than usual by 5-10 mpg. on monday, 9/10, two days after first noticing the smell and parking brake issue but not realizing what the problem was, i drove the car to and from work in commute traffic (approx. 13 miles each way). when i parked the car after the commute home after work, the burning smell was much stronger, and clearly coming from left rear brake. upon inspection, i noticed light smoke coming from pad/rotor, lots of brake dust, and evidence of grooving on rotor, so obviously the brake was sticking or dragging on the rotor. i called my service dealership right away (hyundai of seattle), who took the problem seriously and said "call hyundai roadside assistance to have the car towed to the dealership on a flatbed truck; don't drive the car." it was towed to the dealership the next day, and diagnosed with a left rear brake caliper failure causing the pads to stick to the rotors. a new part was ordered and the car repaired by saturday, 9/15. the service advisor at the dealership claimed to have never heard of this problem before, but i have since read on a website devoted to this specific model, veloster.org, that a number of other 2012 veloster owners have had the same problem. this seems a common defect and clearly a safety issue that hyundai needs to address and dealerships made aware of. *tr