2020 HYUNDAI NEXO Complaints and Recall Information
The 2020 HYUNDAI NEXO has 5 complaints and 4 recalls filed with NHTSA. Owners most frequently report sudden power loss related to the hydrogen fuel cell stack, which affects vehicle performance and safety. Some owners also report issues with parts availability for recall repairs.
Common Issues- Fuel cell stack failure. Sudden loss of power occurs while driving, especially during overtaking, highway, or uphill conditions due to failure of the main fuel cell power-train component. The issue lacks any warning light or alert.
- Power loss safety risks. The power loss presents severe safety concerns as it happens without warning and can impair vehicle control at critical moments.
- Repair limitations. Only select Hyundai dealers, mainly in California, can perform service on hydrogen fuel cell systems, creating accessibility issues for owners outside these areas.
- Parts unavailability. Owners report delays due to missing parts needed for recall repairs, extending the time before fixes can be made.
- Manufacturer refusal to repair. A dealer verbally refused to release or repair a vehicle with power loss issues citing safety concerns, leaving the vehicle at the dealership unresolved for weeks.
There are 4 recalls addressing multiple vehicle systems, including fuel and propulsion and brake control software. These recalls involve defects that could increase the risk of fire, unintended vehicle movement, or reduced braking effectiveness.
Recalls- Pressure relief device failure (campaign 24V761000). Affected 1545 vehicles from 2019-2024 may have a thermally activated pressure relief device that breaks and causes hydrogen gas leaks, increasing fire risk while parked. Owners are advised to park outside and away from structures. Dealers will replace the device free of charge.
- Remote Smart Parking Assist software (campaign 20V213000). For 11870 vehicles including 2020 Nexo, the RSPA software may fail to prevent unintended vehicle movement during malfunctions, raising crash risk. Dealers will reprogram the software at no cost.
- Integrated Electronic Brake control software (campaign 20V748000). Affects 8176 vehicles from 2019-2020. An abnormal sensor signal may reduce braking performance, increasing stopping distances and crash risk. The software will be updated free of charge by dealers.
Owners with unresolved safety defects, repeated power loss problems, or delays in recall repair may have rights under their state lemon laws. Consulting a consumer protection attorney could help evaluate those rights based on specific vehicle issues.
2020 HYUNDAI NEXO Summary
2020
Model Year
5
Total Complaints
3
Total Recalls
21591
Vehicles Affected
Recalls
2020 HYUNDAI NEXO
1545 vehicles affected
FUEL SYSTEM, OTHER:STORAGE:TANK ASSEMBLY:PRESSURE RELIEF DEVICES
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.
Risk: A vehicle fire increases the risk of injury.
2020 HYUNDAI NEXO
8176 vehicles affected
SERVICE BRAKES, HYDRAULIC:POWER ASSIST:ELECTRIC:CONTROL MODULE:SOFTWARE
Hyundai Motor America (Hyundai) is recalling certain 2019-2020 Nexo Fuel Cell and 2019-2021 Kona Electric vehicles. The Integrated Electronic Brake (IEB) system may detect an abnormal sensor signal and as a result, may significantly reduce braking performance.
Risk: Reduced braking power could lengthen the distance required to stop the vehicle, increasing the risk of a crash.
2020 HYUNDAI NEXO
11870 vehicles affected
ELECTRICAL SYSTEM:SOFTWARE
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.
Risk: Unintended vehicle movement increases the risk of a crash.
Complaints
2020 HYUNDAI NEXO
ID: 2120704POWER TRAIN
Hyundai sells Nexo Hydrogen Fuel Cell vehicles with known Fuel Cell stack issues, leading to severe safety issues from sudden power loss when driving, especially when overtaking and driving on highways and/or uphill. The power loss issue was diagnosed to originate from a fuel-cell stack failure, one of the Nexo’s main power-train components. This is a known power-train issue to Hyundai, debated online since 2021 by consumers experiencing the same power loss, across various Hyundai web-logs. Other affected consumers filed a class action lawsuit this year against Hyundai Motor America Inc, for the same and other reasons. The lawsuit accuses Hyundai of selling Nexo vehicles equipped with defective systems that fail to perform as promised. Plaintiffs argue that these defects compromise the vehicle’s performance, including the core hydrogen fuel cell stack, leading to reduced reliability and substantial safety concerns. There is no warning light indicating this issue when driving the Nexo under power loss conditions. One only realizes it when pressing the accelerator pedal and the power suddenly cuts out. In May 2025 I dropped off our 2020 Nexo Limited (~37,000 miles) at the hydrogen-certified Hyundai Dealer for a different and unrelated recall and for service, and mentioned the power loss issue. After some weeks of diagnosis the dealership called me back and verbally stated that they would not fix the car, nor would they give it ever back to me due to safety issues. Our car is still at the dealership, unresolved. No other dealers can repair Hyundai Nexo’s, because it is new hydrogen technology, very high pressures and special procedures, which no other repair shop would touch, so one must stick with Hyundai to get the problem addressed. Hyundai’s Original Manufacturer Warranty for Nexo Power Trains lists on page 15: Original Owner 10 Years/100,000 Miles, Subsequent Owner(s) 5 Years/60,000 Miles. So far I'm not aware of an existing recall for Fuel-Cell Power Loss.
2020 HYUNDAI NEXO
ID: 2120703FUEL/PROPULSION SYSTEM
Hyundai sells Nexo Hydrogen Fuel Cell vehicles with known Fuel Cell stack issues, leading to severe safety issues from sudden power loss when driving, especially when overtaking and driving on highways and/or uphill. The power loss issue was diagnosed to originate from a fuel-cell stack failure, one of the Nexo’s main power-train components. This is a known power-train issue to Hyundai, debated online since 2021 by consumers experiencing the same power loss, across various Hyundai web-logs. Other affected consumers filed a class action lawsuit this year against Hyundai Motor America Inc, for the same and other reasons. The lawsuit accuses Hyundai of selling Nexo vehicles equipped with defective systems that fail to perform as promised. Plaintiffs argue that these defects compromise the vehicle’s performance, including the core hydrogen fuel cell stack, leading to reduced reliability and substantial safety concerns. There is no warning light indicating this issue when driving the Nexo under power loss conditions. One only realizes it when pressing the accelerator pedal and the power suddenly cuts out. In May 2025 I dropped off our 2020 Nexo Limited (~37,000 miles) at the hydrogen-certified Hyundai Dealer for a different and unrelated recall and for service, and mentioned the power loss issue. After some weeks of diagnosis the dealership called me back and verbally stated that they would not fix the car, nor would they give it ever back to me due to safety issues. Our car is still at the dealership, unresolved. No other dealers can repair Hyundai Nexo’s, because it is new hydrogen technology, very high pressures and special procedures, which no other repair shop would touch, so one must stick with Hyundai to get the problem addressed. Hyundai’s Original Manufacturer Warranty for Nexo Power Trains lists on page 15: Original Owner 10 Years/100,000 Miles, Subsequent Owner(s) 5 Years/60,000 Miles. So far I'm not aware of an existing recall for Fuel-Cell Power Loss.
2020 HYUNDAI NEXO
ID: 2120702ENGINE
Hyundai sells Nexo Hydrogen Fuel Cell vehicles with known Fuel Cell stack issues, leading to severe safety issues from sudden power loss when driving, especially when overtaking and driving on highways and/or uphill. The power loss issue was diagnosed to originate from a fuel-cell stack failure, one of the Nexo’s main power-train components. This is a known power-train issue to Hyundai, debated online since 2021 by consumers experiencing the same power loss, across various Hyundai web-logs. Other affected consumers filed a class action lawsuit this year against Hyundai Motor America Inc, for the same and other reasons. The lawsuit accuses Hyundai of selling Nexo vehicles equipped with defective systems that fail to perform as promised. Plaintiffs argue that these defects compromise the vehicle’s performance, including the core hydrogen fuel cell stack, leading to reduced reliability and substantial safety concerns. There is no warning light indicating this issue when driving the Nexo under power loss conditions. One only realizes it when pressing the accelerator pedal and the power suddenly cuts out. In May 2025 I dropped off our 2020 Nexo Limited (~37,000 miles) at the hydrogen-certified Hyundai Dealer for a different and unrelated recall and for service, and mentioned the power loss issue. After some weeks of diagnosis the dealership called me back and verbally stated that they would not fix the car, nor would they give it ever back to me due to safety issues. Our car is still at the dealership, unresolved. No other dealers can repair Hyundai Nexo’s, because it is new hydrogen technology, very high pressures and special procedures, which no other repair shop would touch, so one must stick with Hyundai to get the problem addressed. Hyundai’s Original Manufacturer Warranty for Nexo Power Trains lists on page 15: Original Owner 10 Years/100,000 Miles, Subsequent Owner(s) 5 Years/60,000 Miles. So far I'm not aware of an existing recall for Fuel-Cell Power Loss.
2020 HYUNDAI NEXO
ID: 2104898FUEL/PROPULSION SYSTEM
The contact owns a 2020 Hyundai Nexo. The contact received notification of NHTSA Campaign Number: 24V761000000 (Fuel system, Other, Fuel/Propulsion System); however, the part to do the recall repair was unavailable. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The manufacturer was made aware of the issue and a case was filed. The contact was informed that the only dealer capable of performing the recall repair on the vehicle was in California. The contact was advised to contact the NHTSA Hotline to report the issue. The contact had not experienced an issue. Parts distribution disconnect.
2020 HYUNDAI NEXO
ID: 2104897FUEL SYSTEM, OTHER
The contact owns a 2020 Hyundai Nexo. The contact received notification of NHTSA Campaign Number: 24V761000000 (Fuel system, Other, Fuel/Propulsion System); however, the part to do the recall repair was unavailable. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The manufacturer was made aware of the issue and a case was filed. The contact was informed that the only dealer capable of performing the recall repair on the vehicle was in California. The contact was advised to contact the NHTSA Hotline to report the issue. The contact had not experienced an issue. Parts distribution disconnect.