The reverse lights on my 2008 Mazda3 Hatchback stopped working. I looked online, some people said it might the Backup light switch but my car is automatic and it doesn't have it. Someone on the forum also said the problem is probably in the reverse sensor in the transmission that detects when the car is put in reverse. But I'm having trouble locating this. I called a local auto store and they said it might be the neutral safety switch. The fuses and light bulbs are good. Any help will be appreciated.