VCFRONT-A121
VCFRONT_a121_pumpBatICLatchFault
Also written as VCFRONT_A121 / VCFRONT A121 / VCFRONT_a121_pumpBatICLatchFault / vcfront_a121_pumpbaticlatchfault
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-A121 mean?
Tesla alert code in the Vehicle Controller Front (VCFRONT) module. The battery pump will not run. Powertrain performance may be limited. The circuit will be reset to attempt to clear the fault.
Original Description
The battery pump will not run. Powertrain performance may be limited. The circuit will be reset to attempt to clear the fault.
Affected Tesla Models
What You May Notice
- Vehicle Controller Front alert: The battery pump will not run. Powertrain performance may be limited. The circuit will be reset to attempt to clear the
- 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-A121 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.