Depending on what kidna of car you have this could be your issue it happend to my impala and once i installed this part i have never had an issue since and that was more than 5 years ago.. Check it out, you can put it in yourself so that will save you some $$ its also guaranteed to if the part doesnt work they will refund ya.. They have good customer service so if u have any Q's they will answer them.. Hope this helps ya Do It Yourself GM Security bypass