iBooster (IBST) detected UBB voltage is in undervoltage level 2 failure range. System shall be in 'ReducedPerformance' state.
<0.01% (Extremely rare)
Power braking assist reduced
Braking may require increased effort
IBST may not operate as expected.
iBooster (IBST) detected UBB voltage is in undervoltage level 2 failure range. System shall be in 'ReducedPerformance' state.
IBST detected UBB voltage is in undervoltage level 2 failure range. System shall be in 'ReducedPerformance' state.
iBooster can not recover from this condition. iBooster replacement may be required.
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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