VCFRONT-A452
VCFRONT_a452_dischargePresSensIntermittent
Also written as VCFRONT_A452 / VCFRONT A452 / VCFRONT_a452_dischargePresSensIntermittent / vcfront_a452_dischargepressensintermittent
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-A452 mean?
Tesla alert code in the Vehicle Controller Front (VCFRONT) module. The refrigerant discharge pressure sensor signal is intermittent The refrigerant system will not operate (No A/C and no chiller) when the vehicle is not factory gated and the refrigerant system has not been filled. The vehicle is not factory gated and the refrigerant is not filled or the fill/drain routine is active. Coolant is filled or vehicle is factory gated, and fill routine is inactive. Powertrain and HVAC performance will be limited, as the compressor will be disabled and the refrigerant valves (solenoid/EXV) will be opened.
Original Description
The refrigerant discharge pressure sensor signal is intermittent The refrigerant system will not operate (No A/C and no chiller) when the vehicle is not factory gated and the refrigerant system has not been filled. The vehicle is not factory gated and the refrigerant is not filled or the fill/drain routine is active. Coolant is filled or vehicle is factory gated, and fill routine is inactive. Powertrain and HVAC performance will be limited, as the compressor will be disabled and the refrigerant valves (solenoid/EXV) will be opened.
Affected Tesla Models
What You May Notice
- Vehicle Controller Front alert: The refrigerant discharge pressure sensor signal is intermittent The refrigerant system will not operate (No A/C and no
- 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-A452 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.