NHTSA campaign 20V347000 · Mazda campaign 4520F
Mazda Recall 20V-347: Disconnected Vent Hose May Cause Fuel Leak
NHTSA recall 20V347000 (Mazda campaign 4520F) was reported by Mazda North American Operations on June 12, 2020, with 12,097 vehicles potentially affected (per NHTSA). NHTSA's record lists the Mazda CX-30 for the 2020 model year. Owners were notified on July 29, 2020, per NHTSA.
Updated daily from NHTSA's recall files
Is my vehicle included?
This page lists, by model year, the vehicles NHTSA's recall record names for campaign 20V347000 in the model years try.vin imports (1995 and later); NHTSA's own record can list more. A model year on the list doesn't mean every vehicle of that year is included, and some may already have been repaired.
To see whether a specific vehicle is included and still needs the repair, enter its VIN at nhtsa.gov/recalls.
Mazda VIN check: decode a VIN to see its year, make and model.
Key facts
- NHTSA campaign
- 20V347000 (also written 20V-347 or 20V347)
- Filed by
- Mazda North American Operations
- Mazda campaign number
- 4520F
- Report received
- Potentially affected
- 12,097 vehicles (per NHTSA)
- Component
- Fuel System, Gasoline — Delivery — Hoses, Lines/Piping, and Fittings
- Owners notified
- Safety standard
- FMVSS 301
Repair completion: 99.02% (latest rate the manufacturer reported to NHTSA; dataset updated October 21, 2026)
NHTSA cautions against comparing completion rates across recalls or manufacturers. How try.vin reads them.
Vehicles listed for this recall
NHTSA's recall record lists these vehicles for recall 20V347000. try.vin imports model years 1995 and later, so NHTSA's own list can be longer. Model years with a try.vin recall page link to it. Build dates are NHTSA's range for a model year (per NHTSA); a vehicle built in that range is not necessarily included.
Mazda
Mazda CX-30
NHTSA's recall notice
As NHTSA's recall record states it for campaign 20V347000.
Defect description
Mazda North American Operations (Mazda) is recalling certain 2020 CX-30 vehicles equipped with all-wheel drive. The evaporative vent hose for the fuel tank may be disconnected, possibly allowing fuel to leak from the charcoal canister vent at the rear of the vehicle.
Safety consequence
A fuel leak 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.
Manufacturer remedy
Mazda will notify owners, and dealers will inspect the evaporative vent hose in the fuel tank. If the hose is disconnected, it will be reconnected and the charcoal canister with some related parts will be replaced. Repairs will be performed free of charge. The recall began July 29, 2020. Owners may contact Mazda customer service at 1-800-222-5500, Option 4. Mazda's number for this recall is 4520F.
Notes
Owners may also contact the National Highway Traffic Safety Administration Vehicle Safety Hotline at 1-888-327-4236 (TTY 1-800-424-9153), or go to www.safercar.gov.
Sources
Official NHTSA notice for recall 20V347000
Campaign details come from NHTSA's recall files, which try.vin imports once a day. The plain-language subject and the completion rate come from the U.S. Department of Transportation's Recalls Data dataset. How try.vin reads recall data.