BMS-W164
BMS_w164_SW_Brick_SOC_Imbalance
Also written as BMS_W164 / BMS W164 / BMS_w164_SW_Brick_SOC_Imbalance / bms_w164_sw_brick_soc_imbalance
Why does the exact Tesla alert ID matter?
Record the exact alert ID, including underscores, suffixes, and companion alerts. Tesla alerts that look similar can point to different modules, timestamps, and service procedures.
What does BMS-W164 mean?
Tesla warning code in the Battery Management System (BMS) module. This alert is for engineering visibility only. It does not mean that the pack has an issue. Do not replace the pack due to the presence of this alert. BMS_w164 points to an "intra-bmb" State of Charge (SOC) Imbalance condition.
Original Description
This alert is for engineering visibility only. It does not mean that the pack has an issue. Do not replace the pack due to the presence of this alert. BMS_w164 points to an "intra-bmb" State of Charge (SOC) Imbalance condition.
Affected Tesla Models
What You May Notice
- Battery management warning: This alert is for engineering visibility only. It does not mean that the pack has an issue. Do not replace the pack due
- Charging speed may be limited or sessions interrupted early
- Reduced estimated range may appear on the touchscreen
How to Diagnose and Resolve
- 1 Perform a soft reboot: hold both scroll wheels until the screen restarts
- 2 Try a full charge cycle to recalibrate the BMS
- 3 If "This alert is for engineering visibility only. It " persists after reboot, schedule a Tesla Service appointment
- 4 Avoid DC fast charging until the issue is resolved
Severity Notes
BMS-W164 is a Warning in the Battery Management System system. Schedule service soon. Monitor your vehicle for additional warnings.