Problems owners report
Complaints filed with NHTSA about the 2021 Hyundai NEXO, by the system named in each complaint. One complaint can name several.
- Fuel/propulsion system3
- Electrical system2
- Engine2
- Fuel system, other1
- Forward collision avoidance1
- Power train1
NHTSA ODI complaints (public domain) · updated 23 Oct 2026 · 0 injuries and 0 deaths reported
Compared with other years
NHTSA ODI complaints by model year
Registered new in Europe in 2021
246 new Hyundai NEXO cars were registered in the EU, Norway and Iceland in 2021; the largest markets were Germany (152), the Netherlands (41), Poland (18).
- Average mass
- 1,889 kg
- Average CO₂
- 0 g/km (WLTP)
- Average power
- 120 kW
- Fuel type recorded
- Hydrogen 100%
European Environment Agency, CO₂ emissions from new passenger cars · averages weighted by registrations; CO₂ is the type-approval value; fuel type as recorded at registration, where many non-plug-in hybrids appear as petrol · re-use permitted with acknowledgement
In the Netherlands
49 first registered in 2021 are on Dutch roads; 22% arrived later as imports. Median list price when new: €74,037.
Most common APK defects
- Bandenspanning niet op juiste waarde32
- Dimlicht onjuist afgesteld12
- Ruitenwisserinstallatie geeft onvoldoende zicht5
- Band(en) aanwezig met een profieldiepte van 1,6 t/m 2,5 mm4
- Band onvoldoende profiel4
- Kentekenplaatverlichting werkt niet (goed) / ontbreekt2
- Bandenspanning op 1 as niet gelijk1
- Waarschuwingsinrichting controlesysteem bandenspanning geeft1
Colours
RDW Open Data: registered vehicles and APK defects (CC0) · defect descriptions in the RDW's Dutch wording
In the United Kingdom
1 cars built in 2021 were licensed for the road at the end of 2025, and 1 more were declared off the road (SORN).
Department for Transport and DVLA, vehicle licensing statistics (table VEH0124, year of manufacture) · Open Government Licence v3.0
In New Zealand
1 2021 cars are on the New Zealand register.
NZ Transport Agency Waka Kotahi, Motor Vehicle Register (March 2026) · CC BY 4.0
Crash-test ratings
NHTSA 5-star results for 1 variant; not yet fully rated. Rollover risk is the estimated chance of rolling over in a single-vehicle crash.
| Variant | Overall | Rollover risk |
|---|---|---|
| 2021 Hyundai Nexo SUV FWD | — | 0.0 % |
- Electronic stability control
- Standard
- Forward collision warning
- Standard
- Lane departure warning
- Standard
- Best overall rating
- —
NHTSA New Car Assessment Program (5-Star Safety Ratings), api.nhtsa.gov · US federal work, public domain
Recalls in Canada
4 Transport Canada recalls for the 2021 Hyundai NEXO.
| 2024603 11 Oct 2024 | Fuel System Issue: On certain vehicles, the safety valve for the hydrogen fuel system may not have been manufactured properly. As a result, the valve could fail and cause… |
| 2024552 23 Sept 2024 | Label Issue: On certain vehicles, the compliance label may be missing information in French. The words listed on the label for "Tires", "Rims", "Front" and "Rear" a… |
| 2022192 14 Apr 2022 | Fuel System Issue: Over time, the sensors to detect a hydrogen gas leak may degrade (and not work properly). If this happens, and there is a hydrogen fuel leak, the drive… |
| 2020593 2 Dec 2020 | Brakes Issue: On certain vehicles, an abnormal sensor signal to the Integrated Electronic Brake (IEB) system could cause a sudden reduction in braking performance. I… |
Transport Canada Vehicle Recalls Database · Contains information licensed under the Open Government Licence – Canada
Recalls
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.
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.
Whether a recall was fixed on a particular car is known only to the manufacturer: check the VIN at nhtsa.gov/recalls.
NHTSA recalls · summaries in NHTSA's own words
Service bulletins
What Hyundai told its dealers about the 2021 Hyundai NEXO: known faults, fixes and updates.
| Bulletin | Summary |
|---|---|
| 10251285 | This bulletin contains information about the proper removal of the windshield wiper blade protective cover on all models. If the protective cover is not removed correctly, there is a possibility of the rubber insert and rail spring becoming partially separated on the inner side of the wiper blade, which could lead to poor wiping performance and/or possible scratching of the windshield glass. Follow the procedure in this bulletin to properly remove the windshield wiper blade protective cover on all new wiper blades. |
| 10247189 | This bulletin provides important checkpoint guidelines when performing engine oil and filter change services. |
| 10241825 | This bulletin provides information on how to properly vent Hydrogen from a Nexo FCEV for maintenance or repairs. |
| 10235566 | Hyundai applies a Paint Protection Film (PPF) on new vehicles before delivery to dealerships. It provides a barrier between the paint and contaminants, such as rail dust, acid rain, and industrial fallout. In rare cases, the paint can become clouded under the PPF. These spots are the result of moisture trapped between the PPF and the paint. |
| 10230904 | This bulletin provides information regarding condensation related to the accumulated moisture in the headlamp, rear combination lamp, daytime running lamp (DRL), or fog lamp. This TSB illustrates the various causes of condensation inside the lamp assembly. Lamp assembly replacement is NOT necessary in most cases. This condition can be eliminated by turning on the lamps with the engine running for several minutes or during normal driving operation. |
| 10228214 | Certain Nexo vehicles may experience a stack coolant warning light while driving. The logic update provides real-time current sensor deviation correction. |
| 10227350 | Certain Nexo vehicles may experience a stack coolant warning light while driving. The logic update provides real-time current sensor deviation correction. |
| 10225467 | During certain repairs on Nexo vehicles, it may be necessary to defuel/vent the vehicle prior to repairs and then refuel the vehicle before returning it to the customer. |
| 10225463 | Certain 2019-2021MY NEXO (FE) vehicles may exhibit a micro-leak in the inlet fitting valve area caused by a part that is out of specification. This bulletin outlines the procedure to replace each Inlet Fitting Valve on all three storage tanks. |
| 10217258 | Effective June 2, 2008, Federal Motor Vehicle Safety Standard 110 (FMVSS 110) established a threshold for correcting load carrying capacity information indicated on tire placards when vehicle weight has been increased before retail sale. This limit is the lesser of 1.5% of GVWR or 100 pounds. If the total added weight exceeds the lesser of the limit, a label must be added to the driver-side B-pillar within 25mm (1 inch) of the original tire placard. |
NHTSA manufacturer communications (public domain)