VCLEFT-A342
VCLEFT_a342_trailerLightControllerFault
Also written as VCLEFT_A342 / VCLEFT A342 / VCLEFT_a342_trailerLightControllerFault / vcleft_a342_trailerlightcontrollerfault
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-A342 mean?
Tesla alert code in the Vehicle Controller Left (VCLEFT) module. The Trailer Light Controller has experienced an internal fault The trailer light controller has experienced an internal fault Trailer Light Controller no longer experiencing fault
Original Description
The Trailer Light Controller has experienced an internal fault The trailer light controller has experienced an internal fault Trailer Light Controller no longer experiencing fault
Affected Tesla Models
What You May Notice
- Vehicle Controller Left alert: The Trailer Light Controller has experienced an internal fault The trailer light controller has experienced an internal
- 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-A342 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.