The official notice
Defect
On certain vehicles equipped with all-wheel drive, a hose that connects the evaporative emissions (EVAP) system to the fuel tank may not have been installed correctly. This could cause fuel to flow directly into the EVAP system when the fuel tank is filled completely. As a result, fuel may leak through the charcoal canister vent. A charcoal canister that is filled with fuel could also cause the engine to stall. Note: This problem could cause the malfunction indicator light (MIL) to turn on in the instrument cluster and/or the active driving display.
Safety Risk
A fuel leak can create the risk of a fire. An engine that stalls while driving could increase the risk of a crash.
Remedy
Mazda will notify owners by mail and instruct you to take your vehicle to a dealer to inspect the EVAP hose connection inside the fuel tank and reconnect it, if necessary. If the hose is found disconnected, the charcoal canister will also be replaced. You should avoid completely filling the fuel tank until the recall repairs are completed.