VCFRONT-A159
VCFRONT_a159_coolantValveFault
Also written as VCFRONT_A159 / VCFRONT A159 / VCFRONT_a159_coolantValveFault / vcfront_a159_coolantvalvefault
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-A159 mean?
Tesla alert code in the Vehicle Controller Front (VCFRONT) module. The coolant valve has stalled out. Powertrain performance may be limited. Coolant valve has stalled when attempting to reach an angle target. Coolant valve has reached the angle target.
Original Description
The coolant valve has stalled out. Powertrain performance may be limited. Coolant valve has stalled when attempting to reach an angle target. Coolant valve has reached the angle target.
Affected Tesla Models
What You May Notice
- Vehicle Controller Front alert: The coolant valve has stalled out. Powertrain performance may be limited. Coolant valve has stalled when attempting to r
- 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-A159 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.