Exact make, model and year evidence from official US sources. Recall campaigns, ODI investigations, complaint allegations and EPA estimates remain separate.
A campaign may cover only certain production dates, plants or equipment. A zero result here is not safety clearance. Use NHTSA’s official VIN tool for the individual vehicle.
Exact model-level NHTSA results for 2021 HYUNDAI Nexo. Campaign records are official safety actions; applicability to a particular car still requires its VIN.
Urgent NHTSA flag: park outside. Confirm current instructions using the official campaign and VIN lookup.
Summary
Hyundai Motor America (Hyundai) is recalling certain 2019-2021 Nexo vehicles. The hydrogen gas detection sensors may fail to detect leaks in the hydrogen gas delivery system.
Consequence
A hydrogen gas leak can increase the risk of a fire while parked or driving.
Remedy
Owners are advised to park their vehicles outside and away from structures until the recall remedy is completed. Dealers will replace the hydrogen gas detection sensors, free of charge. Owner notification letters were mailed August 12, 2022. Owners may contact Hyundai customer service at 1-855-371-9460. Hyundai's number for this recall is 225.
Urgent NHTSA flag: park outside. Confirm current instructions using the official campaign and VIN lookup.
Summary
Hyundai Motor America (Hyundai) is recalling certain 2019-2024 Nexo vehicles. The thermally activated pressure relief device (TPRD) may break and cause a hydrogen gas leak, which can result in a fire while parked.
Consequence
A vehicle fire increases the risk of injury.
Remedy
Owners are advised to park outside and away from structures until the recall remedy is completed. Dealers will replace the TPRD, free of charge. Interim notification letters, notifying owners of the safety risk, were mailed November 8, 2024. Final owner notification letters will be mailed in phases, beginning January 6, 2025. Owners may contact Hyundai Customer Service at 800-633-5151. Hyundai's number for this recall is 269.
02 · Owner allegations
2 NHTSA complaints
Counts are not adjusted for sales, vehicle age, mileage, publicity or reporting behavior. They are allegations, not defect findings or a reliability score.
Crash mentions
0
Fire mentions
0
Injuries reported
0
Most-reported component labels
ELECTRICAL SYSTEM2
ENGINE1
FORWARD COLLISION AVOIDANCE1
FUEL SYSTEM1
OTHER1
Complaints across nearby Hyundai Nexo model years
Totals for the same nameplate, scaled against its highest year here. They are not adjusted for how many were sold, how old they are, how far they are driven, or how much publicity a fault received — an older or better-selling year will usually carry more reports. This shows where the reporting sits, not which year is better.
An investigation means ODI reviewed a possible safety issue for this exact model-year identity. Opening one is not a defect finding; closing one does not by itself clear a vehicle.
VERIFIED EMPTY IMPORT SNAPSHOT
No exact NHTSA ODI investigation row was matched.
The checked bulk snapshot returned zero investigation action numbers for 2021 HYUNDAI Nexo. That is source coverage, not proof that no issue exists or will be investigated later.
04 · EPA configurations
Fuel economy & specifications
FuelEconomy.gov records are summarized as ranges where this model name has multiple engines, drivetrains or trims.
EPA configurations
2
Combined economy
57–61 mpg/MPGe
City / highway
59–65 / 54–58 mpg/MPGe
Engine displacement
0 L
Cylinders
0
Fuel type
Hydrogen
Drive
Front-Wheel Drive
Vehicle class
Small Sport Utility Vehicle 2WD
Annual fuel-cost estimate
$0
05 · Evidence strength
Exact identity. Explicit limits.
No opaque score. Evidence strength is expressed through source availability, exact match method, jurisdiction and honest empty states.
exact match
Recall campaigns
2 exact US model-year records in this bounded view.
exact match
Complaints
2 exact US model-year allegations; narratives and VIN fragments are omitted.
verified empty
ODI investigations
0 exact US model-year action numbers in the approved import snapshot.
canonical only
Model aliases
Only the exact NHTSA vPIC model name is published; unverified aliases are not merged.
not published
Manufacturer ownership
No rights-reviewed official ownership record is joined to this exact model-year.
PUBLIC EVIDENCE PASSPORT
Identity, freshness and provenance.
The canonical URL is this file’s permanent public identifier. Source IDs and timestamps show exactly what was matched and when; they do not turn the evidence into a verdict.
Only NHTSA vPIC, NHTSA ODI complaints and investigations, NHTSA recalls and FuelEconomy.gov contribute to this vehicle claim. CPSC equipment notices are searched separately and never joined to vehicle fitment. UK MOT, Canadian, New Zealand and European records are not merged into this US claim.
06 · Research paths
Diagnose first. Confirm fitment.
These are transparent searches, not diagnoses or endorsed parts. Recall remedies come before purchases; exact part fitment requires VIN, trim, powertrain, production date and OE number.
2 complaint labels
ELECTRICAL SYSTEM
Check recalls and diagnostic information before replacing anything.
Awin US and R2 affiliate inventory are not published until a US programme, merchant and exact-fitment projection are approved. No offer currently has both merchant approval and exact vehicle fitment, so commercial links never count as evidence.