VCFRONT-PCS-ON
VCFRONT_pcs_on
Also written as VCFRONT_PCS_ON / VCFRONT PCS ON / VCFRONT_pcs_on / vcfront_pcs_on
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-PCS-ON mean?
Tesla unknown code in the Vehicle Controller Front (VCFRONT) module. All messages the local ECU expects to receive from the PCS ECU are being received or the PCS ECU is CAN inactive. 12v and high voltage battery charging functionality may be missing. One or more of the expected CAN messages from CMP were not received.
Original Description
All messages the local ECU expects to receive from the PCS ECU are being received or the PCS ECU is CAN inactive. 12v and high voltage battery charging functionality may be missing. One or more of the expected CAN messages from CMP were not received.
Affected Tesla Models
What You May Notice
- Vehicle Controller Front alert: All messages the local ECU expects to receive from the PCS ECU are being received or the PCS ECU is CAN inactive. 12v an
- 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-PCS-ON is a diagnostic or informational code in the Vehicle Controller Front system. Typically no immediate action is required.