UMC detected contactor stuck open or closed.
<0.01% (Extremely rare)
Unable to charge - Mobile Connector error
Unplug from wall outlet and retry
UMC will not allow charging if the contactor is stuck in an unexpected state. Charge handle pins may be live and hazardous. Stuck open (non-hazardous) contactors will not trigger this fault with EU smart adapters.
UMC detected contactor stuck open or closed.
UMC contactor is open when it should be closed (non-EU smart adapter) or closed when it should be open for several seconds
UMC contactor is in the expected state for several seconds
Cybertruck, Model 3 2017-2023, Model 3 2024+, Model S 2021+, Model X 2021+, Model Y, Model Y 2025+
customer, service-fix
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