VCFRONT-A199
VCFRONT_a199_PRVCANUndertrminate
Also written as VCFRONT_A199 / VCFRONT A199 / VCFRONT_a199_PRVCANUndertrminate / vcfront_a199_prvcanundertrminate
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-A199 mean?
Tesla alert code in the Vehicle Controller Front (VCFRONT) module. The adjustable termination is off when it should be on. Adjustable termination is off and the vehicle is RWD or DIS is not connected to CAN. UDS routine to turn on the termination is run.
Original Description
The adjustable termination is off when it should be on. Adjustable termination is off and the vehicle is RWD or DIS is not connected to CAN. UDS routine to turn on the termination is run.
Affected Tesla Models
What You May Notice
- Vehicle Controller Front alert: The adjustable termination is off when it should be on. Adjustable termination is off and the vehicle is RWD or DIS is n
- 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-A199 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.