The day that I had these fobs programmed to my car started a total nightmare. Until this day my 2012 Malibu had absolutely no problems. On the way home, my car stalled out and died. After taking it back to the dealership 3 times over the course of a month and paying over $1000 in parts alone my car is FINALLY normal again . (They didn't charge me for labor) What happened is nearly every sensor and module on my car got fried. No wonder it wouldn't run and I got stranded over and over again. My word of advice: Buy a factory key and fob. Its more than worth it.