HVP-W028
HVP_w028_PackVoltMismatchFault
Also written as HVP_W028 / HVP W028 / HVP_w028_PackVoltMismatchFault / hvp_w028_packvoltmismatchfault
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 HVP-W028 mean?
Tesla warning code in the High Voltage Protection (HVP) module. Warns if the pack voltage doesn't match approximately with sum of brick voltages The pack voltage doesn't match approximately with sum of brick voltages The pack voltage match approximately with sum of brick voltages The contactors may not be allowed to close Alerts if PyroLeakTest pyro diagnostic has cross warning threshold PyroLeakTest sees an Aout outside of 15% tolerance when measuring leakage Customer Facing text to seek service immediately Warns if the BMS node is mia on HVS CAN The BMS node is mia on HVS CAN The BMS node is not mia on HVS CAN Warn if FC contactors are forced open
Original Description
Warns if the pack voltage doesn't match approximately with sum of brick voltages The pack voltage doesn't match approximately with sum of brick voltages The pack voltage match approximately with sum of brick voltages The contactors may not be allowed to close Alerts if PyroLeakTest pyro diagnostic has cross warning threshold PyroLeakTest sees an Aout outside of 15% tolerance when measuring leakage Customer Facing text to seek service immediately Warns if the BMS node is mia on HVS CAN The BMS node is mia on HVS CAN The BMS node is not mia on HVS CAN Warn if FC contactors are forced open
Affected Tesla Models
What You May Notice
- High Voltage Protection alert: Warns if the pack voltage doesn't match approximately with sum of brick voltages The pack voltage doesn't match approxim
- Related vehicle feature may be reduced or unavailable
- Alert visible in the Tesla app: Warns if the pack voltage doesn't match approximately with sum of brick voltages
How to Diagnose and Resolve
- 1 Reboot the vehicle by holding both scroll wheels for 10 seconds
- 2 Check for pending OTA software updates in Controls > Software
- 3 If the alert persists, schedule a Tesla Service appointment
- 4 Describe the alert code and any symptoms when booking service
Severity Notes
HVP-W028 is a Warning in the High Voltage Protection system. Schedule service soon. Monitor your vehicle for additional warnings.