Hyundai NEXO 2023 Owner's Manual page 53

CUSTOMER Q&A GUIDE (CONT.)
Category
39. What happens if hydrogen gas leaks
from the fuel cell stack?
40. Can the fuel cell stack explode or burn
out due to overheating?
Fuel Cell
Stack/High
Voltage
Battery
41. Which symptoms occur if the fuel cell
(4 items)
system malfunctions?
42. Is the recharge performance of the high
voltage battery reduced depending on
its length of use?
H42
Questions
(Red)
If hydrogen gas leaks beyond what's tolerable from the fuel cell stack,
a hydrogen sensor installed in the system detects the leak and in
response, turns ON the hydrogen gas leak warning light in the cluster.
The fuel cell stack passed a high temperature test and is deemed
safe, so it is unlikely to explode.
If the fuel cell system malfunctions, warning lights specific to the
actual problem appear on the LCD display. When this happens, the
vehicle speed may be limited, or the fuel cell system may shut
down. DO NOT lose your composure if this happens. Park your vehi-
cle and turn OFF the vehicle. Then, we recommend that you contact
an authorized HYUNDAI dealer for service.
Like any vehicle component, the high voltage battery will decrease
in performance as it ages over time. However, the high voltage bat-
tery of the FCEV is durable enough to work at peak performance
beyond the warranty period.
Answers