VCFRONT-A449
VCFRONT_a449_hornSwitchStuckOn
Also written as VCFRONT_A449 / VCFRONT A449 / VCFRONT_a449_hornSwitchStuckOn / vcfront_a449_hornswitchstuckon
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-A449 mean?
Tesla alert code in the Vehicle Controller Front (VCFRONT) module. The steering wheel horn switch is stuck on The steering wheel horn switch has been pressed for 60 seconds The steering wheel horn switch becomes not pressed The steering wheel horn switch no longer activates the horn The motor controller has a communication fault. Possible VCFRONT internal electrical issue. HVAC cabin cooling (air conditioning) and powertrain performance may be limited. The power conversion system eFuse reported a current value over 200A within the last 10ms. 200A eFuse current within last 10ms.
Original Description
The steering wheel horn switch is stuck on The steering wheel horn switch has been pressed for 60 seconds The steering wheel horn switch becomes not pressed The steering wheel horn switch no longer activates the horn The motor controller has a communication fault. Possible VCFRONT internal electrical issue. HVAC cabin cooling (air conditioning) and powertrain performance may be limited. The power conversion system eFuse reported a current value over 200A within the last 10ms. 200A eFuse current within last 10ms.
Affected Tesla Models
What You May Notice
- Vehicle Controller Front alert: The steering wheel horn switch is stuck on The steering wheel horn switch has been pressed for 60 seconds The steering w
- 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-A449 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.