VCFRONT-A339
VCFRONT_a339_iboosterFastTripOCMax
Also written as VCFRONT_A339 / VCFRONT A339 / VCFRONT_a339_iboosterFastTripOCMax / vcfront_a339_iboosterfasttripocmax
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-A339 mean?
Tesla alert code in the Vehicle Controller Front (VCFRONT) module. The braking assist eFuse reported a current value over 100A within the last 10ms.
Original Description
The braking assist eFuse reported a current value over 100A within the last 10ms.
Affected Tesla Models
What You May Notice
- Vehicle Controller Front alert: The braking assist eFuse reported a current value over 100A within the last 10ms.
- 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-A339 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.