MyTeslaMate
VCFRONT family

VCFRONT_a159_coolantValveFault

Not Available

What does the VCFRONT_a159_coolantValveFault alert mean?

The coolant valve has stalled while trying to reach a specific angle target. Cabin HVAC / climate control cooling (air conditioning) may be limited and drive power may be reduced.

What you'll see in your Tesla

  • Not Available

What triggers it

Coolant valve has stalled when attempting to reach an angle target.

When it clears

Coolant valve has reached the necessary angle target.

Potential impact

Cabin HVAC / climate control cooling (air conditioning) may be limited. Drive power may also be limited due to low coolant flow, and a separate alert will be present to indicate this condition.

Affected models

Cybertruck Model 3 2017-2023 Model 3 2024+ Model S 2021+ Model X 2021+ Model Y Model Y 2025+

Track your Tesla's alerts automatically

Alerts like this reach MyTeslaMate through your car's Tesla telemetry API. MyTeslaMate logs every alert your Tesla reports and turns it into readable history and real-time notifications — hosted TeslaMate with no server to run.