There are 2 owner-reported engine complaints for the 2015 Mazda Mazda6in NHTSA's database. These are unverified consumer reports and may not reflect confirmed defects.
EVEN THOUGH IT SAYS IT CAN USE THE LOWEST OCTANE RATING, I NOTICED SOME HESITATION WHEN STARTING FROM A RED LIGHT. THE CURE FOR THIS WAS TO GO UP ONE GRADE OF OCTANE NOW NO MORE HESITATION. *TR
THE BRAND NEW CAR IDLES VERY ROUGH AT STOP LIGHTS. IT SHAKES THE ENTIRE CAR. *TR
Complaints are unverified consumer reports submitted to NHTSA. A high complaint count may reflect vehicle popularity, not defect severity. Data sourced from NHTSA public records.
Data synced from NHTSA on Apr 26, 2026