Three problems related to software have been reported for the 2012 Mazda MAZDA3. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2012 Mazda MAZDA3 based on all problems reported for the 2012 MAZDA3.
Headlights pulsate when applying brakes. A technical service bulletin was issued. It is a software issue involving the alternator and re-calibrating the pcm. It happens every time you brake when the headlights are on.
Headlights flicker/pulsate when applying brakes. This is a well known issue with 2012-13 Mazda3 that requires a software update to remedy. Currently, Mazda is charging a minimum of $99 to �diagnose� the issue. Since the issue occurs in motion, I do not have photos, but I do have videos. Given that this is a safety issue caused by faulty software that only Mazda can update, there is no reason that owners should have to pay them to fix their own mistake. It's a scam, at best. . Read more...
When breaking from a speed of 35 miles per hour the headlights flicker to a very dim degree. It is nearly a strobe light. Apparently there is a software update fix for this from a TSB so why isn't this recalled? it is clearly dangerous and common.