VCFRONT-A392
VCFRONT_a392_airCompOutputStuckOn
Also written as VCFRONT_A392 / VCFRONT A392 / VCFRONT_a392_airCompOutputStuckOn / vcfront_a392_aircompoutputstuckon
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-A392 mean?
Tesla alert code in the Vehicle Controller Front (VCFRONT) module. Upstream VBAT_FUSED to deenergize air compressor. Air compressor output detected to be on while being commanded off. The powertrain pump may not run. Powertrain performance may be limited.
Original Description
Upstream VBAT_FUSED to deenergize air compressor. Air compressor output detected to be on while being commanded off. The powertrain pump may not run. Powertrain performance may be limited.
Affected Tesla Models
What You May Notice
- Vehicle Controller Front alert: Upstream VBAT_FUSED to deenergize air compressor. Air compressor output detected to be on while being commanded off. 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-A392 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.