Mazda CX-9 2007–2014 — technical service bulletin
Bulletin 01-014-14-2932 · NHTSA communication 10098304 · issued Jun 10, 2014
Technical service bulletin
communication type
Engine
component
2007–2014
model years
11
vehicle entries
Official summary
Some vehicles may exhibit the check engine light on with dtc p0456 stored in the pcm memory. P0456: evap system leak detected (very small leak) the concern is most likely the result of the customer not getting the fuel cap completely closed after fueling the vehicle. This causes a small fuel vapor leak and turns dtc p0456 on.
Vehicles covered
What a TSB means. Technical service bulletins are repair guidance manufacturers send to dealers — they are not recalls, and repairs are not automatically free (warranty extensions are an exception worth checking). The full document is available via NHTSA’s vehicle lookup.