VCFRONT-A196
VCFRONT_a196_discnctd12VBattery
Also written as VCFRONT_A196 / VCFRONT A196 / VCFRONT_a196_discnctd12VBattery / vcfront_a196_discnctd12vbattery
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 VCFRONT-A196 mean?
Tesla alert code in the Vehicle Controller Front (VCFRONT) module. The low voltage (LV) battery is disconnected. No current flow detected to / from the low voltage (LV) battery for an extended time period. Current flow detected to / from the low voltage (LV) battery. Loss of support from the low voltage (LV) battery, so the vehicle electrical system is only supported via the power conversion system (PCS). Some vehicle features may be unavailable due to load shedding. There should be another alert present to indicate this. Closing contactors and bringing up high voltage is not allowed because of a firmware mismatch. An ECU Mismatch is preventing HV from coming up. Firmware has successfully updated on the vehicle. Charging the high voltage battery is blocked, the vehicle is running off the 12V battery.
Original Description
The low voltage (LV) battery is disconnected. No current flow detected to / from the low voltage (LV) battery for an extended time period. Current flow detected to / from the low voltage (LV) battery. Loss of support from the low voltage (LV) battery, so the vehicle electrical system is only supported via the power conversion system (PCS). Some vehicle features may be unavailable due to load shedding. There should be another alert present to indicate this. Closing contactors and bringing up high voltage is not allowed because of a firmware mismatch. An ECU Mismatch is preventing HV from coming up. Firmware has successfully updated on the vehicle. Charging the high voltage battery is blocked, the vehicle is running off the 12V battery.
Affected Tesla Models
What You May Notice
- Vehicle Controller Front alert: The low voltage (LV) battery is disconnected. No current flow detected to / from the low voltage (LV) battery for an ext
- Some features (climate, lights, or charging) may be temporarily unavailable
- Alert notification in the Tesla app
How to Diagnose and Resolve
- 1 Perform a soft reboot (hold both scroll wheels)
- 2 Check for pending OTA software updates in Controls > Software
- 3 If multiple features remain non-functional, schedule a service appointment
Severity Notes
VCFRONT-A196 is an Alert in the Vehicle Controller Front system. Confirm the vehicle screen and Tesla app show no driving or charging restrictions, and schedule service if the alert returns.