VCLEFT-A446
VCLEFT_a446_trailerAuxReversePower
Also written as VCLEFT_A446 / VCLEFT A446 / VCLEFT_a446_trailerAuxReversePower / vcleft_a446_trailerauxreversepower
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 VCLEFT-A446 mean?
Tesla alert code in the Vehicle Controller Left (VCLEFT) module. Trailer aux is powering VCLEFT and the downstream loads Unexpected voltage seen on liftgate strut output. Liftgate strut may be disabled Voltage is above 8V for 200ms on the liftgate strut output while it is not being driven Liftgate control may be disabled
Original Description
Trailer aux is powering VCLEFT and the downstream loads Unexpected voltage seen on liftgate strut output. Liftgate strut may be disabled Voltage is above 8V for 200ms on the liftgate strut output while it is not being driven Liftgate control may be disabled
Affected Tesla Models
What You May Notice
- Vehicle Controller Left alert: Trailer aux is powering VCLEFT and the downstream loads Unexpected voltage seen on liftgate strut output. Liftgate strut
- 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
VCLEFT-A446 is an Alert in the Vehicle Controller Left system. Confirm the vehicle screen and Tesla app show no driving or charging restrictions, and schedule service if the alert returns.