BMS_a066Medium
Battery Pack Temperature Warning
Battery temperature exceeded safe operating range during charging or driving. Often triggered by DC fast charging on a hot day or after spirited driving. Try precondition your battery before charging.
Model 3Model YModel S
BMS_w017Medium
Cell Voltage Imbalance
Individual battery cells are showing voltage differences outside normal range. Can indicate early battery degradation. Monitor range loss and schedule service if persistent.
Model SModel XModel 3
BMS_f062High
Battery Fault — Service Required
Serious battery management fault detected. Vehicle may enter reduced power mode. Do not ignore this code. Schedule Tesla service appointment immediately.
All Models
BMS_w062Medium
Battery Warning — Monitor Closely
Battery system warning that requires attention. Less severe than f062 but should be monitored. Check if warning clears after full charge cycle before scheduling service.
All Models
BMS_a069Medium
High Voltage Battery Needs Service
Battery pack requires service attention. May affect charging speed or range. Schedule a Tesla service appointment when convenient — not an emergency but don't delay too long.
Model 3Model Y
BMS_a068Low
Battery Charge Level Low
Battery state of charge has dropped to a level that may affect performance. Find a charging station soon. Vehicle range may be limited to protect battery health.
All Models
BMS_a071Medium
Battery Coolant Pump Fault
The battery cooling system pump is experiencing an issue. This can cause overheating during charging or driving. Avoid DC fast charging until resolved. Schedule service soon.
Model SModel XModel 3
BMS_a073High
Battery Thermal Runaway Risk
Critical thermal warning. Pull over safely and exit the vehicle. Do not charge. Contact Tesla emergency support immediately. This is a serious safety alert.
All Models
BMS_a040Low
Charge Port Latch Not Engaged
The charge port latch did not fully engage during charging. Try unplugging and replugging the charge cable. Check for debris in the charge port opening.
Model 3Model Y
BMS_a035Medium
Maximum Battery Charge Level Reduced
Tesla has temporarily reduced your maximum charge level to protect battery health. This is often a protective measure after repeated high-temperature charging. Usually resolves itself.
All Models