EZ Swap LLC services the Hyundai Nexo in Phoenix, AZ, covering model years 2019 to 2025, 2027. If your Nexo has a warning light, a strange noise or a safety recall question, our mechanics can diagnose it and give you a clear quote first.
To help Nexo owners know what to watch for, we reviewed public records from the National Highway Traffic Safety Administration (NHTSA). For these model years NHTSA has 19 owner complaints on file for the Nexo and 5 safety recall campaigns. The most-reported problem areas are fuel/propulsion system (10), engine (4), electrical system (3).
Most-Reported Hyundai Nexo Problems
These problem areas come up most often in NHTSA owner complaints for the Nexo (all model years combined). Complaint counts reflect reports filed, not the share of vehicles affected, so popular and older models naturally have more.
| Problem area (NHTSA component) | Complaints | Share | |
|---|---|---|---|
| Fuel/Propulsion System | 10 | 52% | |
| Engine | 4 | 21% | |
| Electrical System | 3 | 15% | |
| Forward Collision Avoidance | 3 | 15% | |
| Service Brakes | 2 | 10% | |
| Power Train | 2 | 10% | |
| Fuel System, Other | 2 | 10% | |
| Vehicle Speed Control | 1 | 5% |
Fuel/Propulsion System
10 of the 19 complaints (52%) mention the fuel system. Fuel system problems can cause stalling, hard starts and poor mileage. We test fuel delivery and related sensors to find the real cause. See our no-start diagnostics and check engine light diagnostics pages.
Engine
4 of the 19 complaints (21%) mention the engine and cooling system. Engine and cooling complaints are best caught early in Phoenix, where heat pushes cooling systems and engine oil to their limits. We diagnose warning lights and check coolant, hoses and oil condition. See our check engine light diagnostics and oil change & maintenance pages.
Electrical System
3 of the 19 complaints (15%) mention the electrical system. Electrical problems are made worse by desert heat, which ages batteries, cables and connectors. We test the battery, starter and charging system and trace faults to the actual part. See our battery replacement and starter & alternator repair pages.
Hyundai Nexo Complaints by Model Year
The Nexo model years with the most NHTSA complaints on file are 2020, 2023, 2019. Older model years have had more time to collect reports, so use this table as a guide for what to inspect, not as a verdict on any one vehicle.
| Model year | Complaints on file | |
|---|---|---|
| 2019 | 3 | |
| 2020 | 7 | |
| 2021 | 2 | |
| 2022 | 1 | |
| 2023 | 6 |
Hyundai Nexo Check Engine Codes
NHTSA owner complaints rarely cite specific trouble codes for the Nexo, so we do not have a model-specific ranking to show. These are the check engine codes we see most often on vehicles in Phoenix heat, and any of them can show up on a Hyundai.
| Code | What it means |
|---|---|
| P0420 | Catalyst efficiency below threshold (bank 1) Often a worn catalytic converter, but failing oxygen sensors or exhaust leaks can set it too. Can cause an emissions test failure. |
| P0300 | Random or multiple cylinder misfire Worn spark plugs, failing ignition coils, fuel or vacuum problems. Do not ignore a flashing check engine light. |
| P0171 | System too lean (bank 1) Often a vacuum leak, dirty MAF sensor, weak fuel delivery or a failing oxygen sensor. |
| P0455 | EVAP system large leak Missing or loose gas cap, or a disconnected or cracked vapor hose. |
| P0128 | Coolant temperature below thermostat regulating temperature Usually a thermostat stuck open. Fix it to restore efficiency and cabin heat. |
| P0442 | EVAP system small leak Loose or worn gas cap, cracked hose or purge or vent valve. |
| P0301 | Cylinder 1 misfire Commonly a bad spark plug or ignition coil on that cylinder. |
| P0401 | EGR flow insufficient Clogged EGR passages or a stuck EGR valve. |
Got a check engine light on your Nexo? A code is a clue, not a diagnosis, so we scan it and test the system before replacing anything. See our check engine light diagnostics.
Hyundai Nexo Safety Recalls
NHTSA lists 5 recall campaigns for the Nexo in these model years, most often involving fuel system, other, service brakes, hydraulic, electrical system. Recalls are repaired by the manufacturer at no charge to you, but each applies only to certain vehicles. Look up your VIN at nhtsa.gov/recalls.
- 2024 recall, Fuel System, Other (campaign 24V761000): 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.
- 2022 recall, Fuel System, Other (campaign 22V228000): Hyundai Motor America (Hyundai) is recalling certain 2019 Nexo vehicles. Following hydrogen refueling, the inlet receptacle filter could detach and cause a hydrogen fuel leak.
- 2022 recall, Fuel System, Other (campaign 22V258000): 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.
- 2020 recall, Service Brakes, Hydraulic (campaign 20V748000): Hyundai Motor America (Hyundai) is recalling certain 2019-2020 Nexo Fuel Cell and 2019-2021 Kona Electric vehicles.
- 2020 recall, Electrical System (campaign 20V213000): Hyundai Motor America (Hyundai) is recalling certain 2020 Nexo and Sonata vehicles. The Remote Smart Parking Assist (RSPA) software may fail to prevent vehicle movement upon detection of an RSPA system malfunction.
Keeping a Hyundai Nexo Reliable in Phoenix
Arizona heat is the hardest test a Hyundai will face. Batteries, belts, hoses, tires and engine oil all wear faster here, and a Nexo that spends its life in stop-and-go Valley traffic needs maintenance earlier than the owner's manual's normal schedule suggests.
Our recommendation for Nexo owners: follow the severe-service schedule, test the battery before every summer, inspect brakes and tires twice a year, and have any warning light diagnosed instead of ignored. If you are shopping for a used Hyundai Nexo, a pre-purchase inspection shows what the paperwork does not.
Hyundai Nexo Services at EZ Swap LLC
Get the details on our Phoenix Hyundai Nexo repair service, or choose a service below.
No-Start Diagnostics
Find out why it will not start.
Details →Check Engine Light Diagnostics
Scan, test and pinpoint the real cause.
Details →Oil Change & Maintenance
Oil, filters, fluids, tires and scheduled service.
Details →Battery Replacement
Test, replace and protect against Phoenix heat.
Details →Starter & Alternator Repair
Charging and starting system repair.
Details →Hyundai Nexo FAQ
What are the most common problems with the Hyundai Nexo?
Based on NHTSA owner complaints, the most-reported problem areas for the Hyundai Nexo are fuel/propulsion system (10), engine (4), electrical system (3). Complaint counts reflect reports filed, not the share of vehicles affected.
Which Nexo model years have the most complaints?
The Nexo model years with the most NHTSA complaints on file are 2020, 2023, 2019. Older years have had longer to collect reports, so inspect any specific vehicle before buying.
What check engine codes are common on the Hyundai Nexo?
NHTSA complaints rarely cite specific codes for the Hyundai Nexo. On Phoenix vehicles in general, we see P0420, P0300 misfires, P0171 lean conditions and EVAP leaks such as P0455 and P0442 most often. Bring yours in and we will scan and test it.
Does the Hyundai Nexo have any safety recalls?
NHTSA lists 5 recall campaigns for the Hyundai Nexo across model years 2019 to 2025, 2027. Each recall applies only to certain vehicles, so enter your VIN at nhtsa.gov/recalls to see if yours is affected.
Do you repair the Hyundai Nexo in Phoenix?
Yes. EZ Swap LLC repairs and maintains Hyundai vehicles including the Nexo, at 9050 N 9th St in Phoenix. Call or text (602) 246-9063 for an appointment.
Is a pre-purchase inspection worth it for a used Hyundai Nexo?
Yes. An inspection checks the engine, transmission, brakes, suspension, A/C and electrical system, and scans for stored codes, so you know the real condition before you buy.
How often should I service my Hyundai Nexo in Phoenix?
Follow the severe-service schedule in your owner's manual, since heat and stop-and-go driving count as severe use. Test the battery before summer and inspect brakes and tires regularly.
More Hyundai Models We Service
Source: public complaint and recall records from the National Highway Traffic Safety Administration (nhtsa.gov). Counts reflect reports filed and do not predict the condition of any individual vehicle.