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Fuel May Leak from Rear of Vehicle

Mazda North American Operations

June 22, 2020

WASHINGTON, DC. (June 22, 2020) – Mazda North American Operations (MNAO) has filed a defect notification with the National Highway Traffic Safety Administration (NHTSA) for a safety defect, which exists in certain 2020 Mazda CX-30 vehicles when equipped with all-wheel drive (AWD). Mazda’s recall number is 4520F. On certain vehicles equipped with AWD, the fuel evaporative vent hose may not be connected to the fuel sender unit due to an improper manufacturing process at the fuel tank manufacturing plant. When fully refueling the vehicle, liquid fuel will eventually fill the charcoal canister, resulting in a leak.

A fuel leak from the canister in the presence of an ignition source may increase the risk of a fire. Additionally, the engine may stall while driving, increasing the risk of a crash. A Malfunction Indicator Lamp (MIL) and warning messages in the Multi- Information Display and Active Driving Display may notify the driver of a malfunction in the vehicle emissions system if this defect occurs.

Approximately 12,097 Mazda CX-30 units are affected in the U.S..

No accidents or injuries have been reported from the field to date as a result of this defect.

Mazda North American Operations is headquartered in Irvine, California, and oversees the sales, marketing, parts and customer service support of Mazda vehicles in the United States and Mexico through approximately 620 dealers. For more information on Mazda vehicles, including photography and B-roll, please visit the online Mazda media center at

Follow MNAO’s social media channels through Twitter and Instagram at @MazdaUSA and Facebook at


Tamara Mlynarczyk, Mazda North American Operations, 202-467-5092
Emily Taylor, Mazda North American Operations, 949-727-6182