VCLEFT-A340
VCLEFT_a340_trailerRightTurnLightNotDetected
Also written as VCLEFT_A340 / VCLEFT A340 / VCLEFT_a340_trailerRightTurnLightNotDetected / vcleft_a340_trailerrightturnlightnotdetected
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-A340 mean?
Tesla alert code in the Vehicle Controller Left (VCLEFT) module. Trailer right turn light faulted or not detected Right turn light trailer light is not plugged in to trailer or its efuse has tripped Connect a right turn trailer light or toggle trailer mode Right turn indicator on trailer may not operate properly
Original Description
Trailer right turn light faulted or not detected Right turn light trailer light is not plugged in to trailer or its efuse has tripped Connect a right turn trailer light or toggle trailer mode Right turn indicator on trailer may not operate properly
Affected Tesla Models
What You May Notice
- Vehicle Controller Left alert: Trailer right turn light faulted or not detected Right turn light trailer light is not plugged in to trailer or its efus
- 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-A340 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.