Hyundai IONIQ 5 Owner's Manual page 93

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Stop vehicle and check power supply
OOSEV040511L
This warning message is displayed when a failure occurs in the power supply system.
In this case, park the vehicle in a safe location and have your vehicle towed to the nearest
authorized HYUNDAI dealer and have the vehicle inspected.
Check virtual engine sound system
OOSEV040512L
This message is displayed when there is a problem with the Virtual Engine Sound System
(VESS).
In this case, have the vehicle inspected by an authorized HYUNDAI dealer.
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