VCFRONT-A158
VCFRONT_a158_louverDisconnected
Also written as VCFRONT_A158 / VCFRONT A158 / VCFRONT_a158_louverDisconnected / vcfront_a158_louverdisconnected
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-A158 mean?
Tesla alert code in the Vehicle Controller Front (VCFRONT) module. The front louver motor is disconnected. HVAC cabin cooling (air conditioning) and powertrain performance may be limited. Motor disconnected bit is set high in driver register for more than 30s Motor disconnected bit is no longer set
Original Description
The front louver motor is disconnected. HVAC cabin cooling (air conditioning) and powertrain performance may be limited. Motor disconnected bit is set high in driver register for more than 30s Motor disconnected bit is no longer set
Affected Tesla Models
What You May Notice
- Vehicle Controller Front alert: The front louver motor is disconnected. HVAC cabin cooling (air conditioning) and powertrain performance may be limited.
- 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-A158 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.