VCFRONT-A401
VCFRONT_a401_dead12VMinimalAhDischarged
Also written as VCFRONT_A401 / VCFRONT A401 / VCFRONT_a401_dead12VMinimalAhDischarged / vcfront_a401_dead12vminimalahdischarged
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-A401 mean?
Tesla alert code in the Vehicle Controller Front (VCFRONT) module. V marked dead for reaching low voltage with minimal Ah discharged. 12V battery may not be able to support the vehicle's electrical systems and is likely to fail precharge. The front vehicle controller has opened the voltage supply circuit to the secondary power steering controller. Power steering functionality is reduced.
Original Description
V marked dead for reaching low voltage with minimal Ah discharged. 12V battery may not be able to support the vehicle's electrical systems and is likely to fail precharge. The front vehicle controller has opened the voltage supply circuit to the secondary power steering controller. Power steering functionality is reduced.
Affected Tesla Models
What You May Notice
- Vehicle Controller Front alert: V marked dead for reaching low voltage with minimal Ah discharged. 12V battery may not be able to support the vehicle's
- 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-A401 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.