Recall 20V347 affects 12,097 2020 Mazda CX-30 vehicles for a disconnected fuel-tank evaporative vent hose. Repair is free at any franchised Mazda dealer.
Mazda is recalling 12,097 2020 CX-30 all-wheel-drive vehicles because the evaporative vent hose for the fuel tank can disconnect and allow fuel to leak from the charcoal canister vent at the rear of the vehicle. The defect creates fire risk if leaking fuel reaches an ignition source, and Mazda dealers will complete the recall repair free of charge.
Does this recall apply to your specific vehicle?
The official, free per-VIN recall check is run by NHTSA. Enter your VIN and we'll forward you directly — and add you to a free watchlist so you hear about new recalls for your vehicle.
Check my VIN at NHTSARecallNotify doesn't check your VIN — NHTSA's official tool does. We use your email only to alert you to new recalls.
Watch this vehicle for recalls
Add it to your free watchlist and we will alert you as new federal recalls are posted for your year, make and model. New-recall alerts are rolling out now.
You are on the watchlist.
We will email you as new federal recalls are posted for your vehicle.
What's wrong?
The fuel evaporative vent hose on the 2020 Mazda CX-30 routes fuel vapor from the tank into the emissions system. The charcoal canister captures those vapors so they are not released from the rear of the vehicle. The hose has to stay connected inside the fuel tank for the system to vent correctly after refueling.
On affected all-wheel-drive CX-30 SUVs, the hose was left disconnected from the fuel sender unit during fuel tank assembly. When the tank is filled, liquid fuel can travel where only vapor should go and fill the charcoal canister. Fuel then leaks from the canister vent at the rear of the vehicle, and Mazda linked the same defect to an engine stall report during vehicle delivery.
Owners can see warning signs if the emissions system detects the problem. Watch for the Malfunction Indicator Lamp and warning messages in the Multi-Information Display or Active Driving Display.
Who's affected?
| 2020 Mazda CX-30 | fuel system |
|---|---|
| Units affected | 12,097 |
| Field incidents | NHTSA has logged 2 field incidents to date. |
Not every 2020 Mazda CX-30 is on the list. Check your VIN to confirm whether your specific crossover is included.
What's the safety risk?
A fuel leak near an ignition source increases fire risk, and an engine stall while driving raises crash risk. A malfunction light or warning message can appear if the emissions system detects the problem. If that happens, pull over when safe and call a Mazda dealer before continuing. Repair is free at any franchised Mazda dealer.
What should I do?
- Check your VIN to confirm your 2020 Mazda CX-30 is included in this recall.
- Contact a franchised Mazda dealer to schedule the free fuel-system inspection and repair for the disconnected evaporative vent hose, fuel leak risk, and stall risk.
- Bring the recall notice if you have it, or reference recall number 20V347 when you call.
- Avoid open flames or ignition sources near the rear of the vehicle until the dealer completes the inspection and repair.
- Call Mazda customer service at 1-800-222-5500, Option 4, with questions and reference Mazda recall 4520F.
What happens at the repair
At the dealer, a Mazda technician inspects the evaporative vent hose in the fuel tank. If the hose is disconnected, the technician reconnects it and replaces the charcoal canister with related parts. The recall repair is free, and parts and labor are covered. Out-of-pocket repairs already paid are handled through the new vehicle warranty, not through a separate reimbursement program. Ask the service desk how warranty coverage applies if you have prior repair paperwork.
| Reimbursement | Warranty coverage applies |
|---|
Timeline
| June 12, 2020 | NHTSA published the recall |
|---|---|
| June 17, 2020 | Dealer notification began |
| June 17, 2020 | Dealer notification ended |
| July 29, 2020 | Owner notification mailed |
| August 11, 2020 | Interim owner notification (was planned for this date) |
Frequently asked questions
What is recall 20V347?
Recall 20V347 covers 12,097 2020 Mazda CX-30 vehicles with all-wheel drive. The evaporative vent hose for the fuel tank can be disconnected, allowing fuel to leak from the charcoal canister vent. Mazda dealers will inspect the hose and complete the needed repair for free.
What should I do if my 2020 Mazda CX-30 is on this recall?
Check your VIN to confirm your specific vehicle is included in recall 20V347. If it is, contact a franchised Mazda dealer and ask for recall 20V347 or Mazda recall 4520F. The dealer will inspect the evaporative vent hose and perform the repair for free.
Is the recall repair free?
Yes. Federal recall law requires manufacturers to repair safety defects at no cost, and Mazda's remedy says repairs will be performed free of charge. A franchised Mazda dealer will inspect the evaporative vent hose and complete the covered fuel-system repair.
What is the safety risk?
The safety risk is fire or stalling. A disconnected evaporative vent hose can allow fuel to leak from the charcoal canister vent at the rear of the vehicle. If fuel reaches an ignition source, fire risk increases. The engine can also stall while driving, increasing crash risk.
When did Mazda start this recall repair?
Mazda began this recall on July 29, 2020. Since the remedy is available, affected owners can contact a franchised Mazda dealer now to schedule the inspection and repair. Reference recall 20V347 or Mazda recall 4520F when you call.
More information
| NHTSA campaign page | nhtsa.gov/vehicle-recalls/20V347000 |
|---|---|
| Mazda customer service | 1-800-222-5500 |
| NHTSA recall # | 20V347 |
| NHTSA recall # (full) | 20V347000 |
Source documents
-
Download Recall Document (PDF) (PDF) - Download Quarterly Report (PDF)
- Download Misc. Document (PDF)
- Download Recall Investigation Document (PDF) (PDF)
- Download Owner Notification Letter (PDF)
- Download Owner Notice (PDF)
- Download Recall Report (PDF)
- Download Recall Acknowledgement (PDF)
This article is generated from NHTSA's primary recall filings and reviewed against the source on May 23, 2026. RecallNotify does not paraphrase NHTSA's consequence language; that text is reproduced as written above. Editorial standards →